BlackRock Income Trust, Inc.

The information in this Preliminary Prospectus is not complete and may be changed. BlackRock Income Trust, Inc. may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This Preliminary Prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED JUNE 18, 2025

LOGO

PRELIMINARY BASE PROSPECTUS

25,000,000 Shares

BlackRock Income Trust, Inc.

Shares of Common Stock

Rights to Purchase Shares of Common Stock

BlackRock Income Trust, Inc. (the “Fund,” “we,” “us” or “our”) is a diversified, closed-end management investment company. The Fund’s investment objective is to manage a portfolio of high-quality securities to achieve both preservation of capital and high monthly income.

We may offer, from time to time, in one or more offerings, up to 25,000,000 shares of our common stock, par value $0.01 per share (“common shares”). We may also offer subscription rights to purchase our common shares. Common shares may be offered at prices and on terms to be set forth in one or more supplements to this Prospectus (each, a “Prospectus Supplement”). You should read this Prospectus and the applicable Prospectus Supplement carefully before you invest in our common shares.

Our common shares may be offered directly to one or more purchasers, including existing shareholders in a rights offering, through agents designated from time to time by us, or to or through underwriters or dealers. The Prospectus Supplement relating to the offering will identify any agents or underwriters involved in the sale of our common shares, and will set forth any applicable purchase price, fee, commission or discount arrangement between us and our agents or underwriters, or among our underwriters, or the basis upon which such amount may be calculated. The Prospectus Supplement relating to any offering of rights will set forth the number of common shares issuable upon the exercise of each right (or number of rights) and the other terms of such rights offering. We may not sell any of our common shares through agents, underwriters or dealers without delivery of a Prospectus Supplement describing the method and terms of the particular offering of our common shares.

Our common shares are listed on the New York Stock Exchange (“NYSE”) under the symbol “BKT.” The last reported sale price of our common shares, as reported by the NYSE on [●], 2025 was $[●] per common share. The net asset value of our common shares at the close of business on [●], 2025 was $[●] per common share. Rights issued by the Fund may also be listed on a securities exchange.

Investing in the Fund’s common shares involves certain risks, including risks of leverage, that are described in the “Risks” section beginning on page 27 of this Prospectus. Certain of these risks are summarized in “Prospectus Summary—Special Risk Considerations” beginning on page 4.

Shares of closed-end management investment companies frequently trade at a discount to their net asset value. The Fund’s common shares have traded at a discount to net asset value, including during recent periods. If the Fund’s common shares trade at a discount to their net asset value, the risk of loss may increase for purchasers in a public offering.

This Prospectus is part of a registration statement that we have filed with the SEC using the “shelf” registration process. Under the shelf registration process, we may offer, from time to time, separately or together in one or more offerings, the securities described in this Prospectus. The securities may be offered at prices and on terms described in one or more supplements to this Prospectus. This Prospectus provides you with a general description of the securities that we may offer. Each time we use this Prospectus to offer securities, we will provide a Prospectus Supplement that will contain specific information about the terms of that offering. The Prospectus Supplement may also add, update or change information contained in this Prospectus. This Prospectus, together with any Prospectus Supplement, sets forth concisely the information about the Fund that a prospective investor should know before investing. You should read this Prospectus and applicable Prospectus Supplement, which contain important information, before deciding whether to invest in the common shares. You should retain the Prospectus and Prospectus Supplement for future reference. A Statement of Additional Information (“SAI”), dated [●], 2025, containing additional information about the Fund, has been filed with the SEC and, as amended from time to time, is incorporated by reference in its entirety into this Prospectus. You may call (800) 882-0052, visit the Fund’s website (http://www.blackrock.com) or write to the Fund to obtain, free of charge, copies of the SAI and the Fund’s semi-annual and annual reports, as well as to obtain other information about the Fund or to make shareholder inquiries. The SAI, as well as the Fund’s semi-annual and annual reports, are also available for free on the SEC’s website (http://www.sec.gov). You may also e-mail requests for these documents to [email protected]. Information contained in, or that can be accessed through, the Fund’s website is not part of this Prospectus.

You should not construe the contents of this Prospectus as legal, tax or financial advice. You should consult with your own professional advisors as to the legal, tax, financial or other matters relevant to the suitability of an investment in the Fund.

The Fund’s common shares do not represent a deposit or an obligation of, and are not guaranteed or endorsed by, any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

TABLE OF CONTENTS


	Page

PROSPECTUS SUMMARY		1
SUMMARY OF FUND EXPENSES		5
FINANCIAL HIGHLIGHTS		7
USE OF PROCEEDS		11
THE FUND		11
DESCRIPTION OF CAPITAL STOCK		11
THE FUND’S INVESTMENTS		13
LEVERAGE		24
RISKS		27
HOW THE FUND MANAGES RISK		38
MANAGEMENT OF THE FUND		39
NET ASSET VALUE		41
DISTRIBUTIONS		44
DIVIDEND REINVESTMENT PLAN		45
RIGHTS OFFERINGS		45
TAX MATTERS		46
TAXATION OF HOLDERS OF RIGHTS		53
CERTAIN PROVISIONS IN THE CHARTER AND BYLAWS		53
CLOSED-END FUND STRUCTURE		55
REPURCHASE OF COMMON SHARES		55
PLAN OF DISTRIBUTION		55
INCORPORATION BY REFERENCE		57
PRIVACY PRINCIPLES OF THE FUND		57

You should rely only on the information contained in, or incorporated by reference into, this Prospectus and any related Prospectus Supplement in making your investment decisions. The Fund has not authorized any person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. The Fund is not making an offer to sell the common shares in any jurisdiction where the offer or sale is not permitted. You should assume that the information in this Prospectus and any Prospectus Supplement is accurate only as of the dates on their covers. The Fund’s business, financial condition and prospects may have changed since the date of its description in this Prospectus or the date of its description in any Prospectus Supplement.

PROSPECTUS SUMMARY

This is only a summary of certain information relating to BlackRock Income Trust, Inc. This summary may not contain all of the information that you should consider before investing in our common shares. You should consider the more detailed information contained in the Prospectus and in any related Prospectus Supplement and in the Statement of Additional Information (“SAI”) before purchasing common shares.

The Fund

BlackRock Income Trust, Inc. is a diversified, closed-end management investment company. Throughout this Prospectus, we refer to BlackRock Income Trust, Inc. simply as the “Fund” or as “we,” “us” or “our.” See “The Fund.”

The Fund’s common shares are listed for trading on the New York Stock Exchange (“NYSE”) under the symbol “BKT.” As of [●], 2025, the net assets of the Fund were $[●], the total assets of the Fund were $[●] and the Fund had [●] common shares outstanding. The last reported sale price of the Fund’s common shares, as reported by the NYSE on [●], 2025 was $[●] per common share. The net asset value (“NAV”) of the Fund’s common shares at the close of business on [●], 2025 was $[●] per common share. See “Description of Capital Stock.” Rights issued by the Fund may also be listed on a securities exchange.

The Offering

We may offer, from time to time, in one or more offerings, up to 25,000,000 of our common shares on terms to be determined at the time of the offering. We may also offer subscription rights to purchase our common shares. The common shares may be offered at prices and on terms to be set forth in one or more Prospectus Supplements. You should read this Prospectus and the applicable Prospectus Supplement carefully before you invest in our common shares. Our common shares may be offered directly to one or more purchasers, through agents designated from time to time by us, or to or through underwriters or dealers. The offering price per common share will not be less than the NAV per common share at the time we make the offering, exclusive of any underwriting commissions or discounts, provided that rights offerings that meet certain conditions may be offered at a price below the then current NAV. See “Rights Offerings.” The Prospectus Supplement relating to the offering will identify any agents, underwriters or dealers involved in the sale of our common shares, and will set forth any applicable purchase price, fee, commission or discount arrangement between us and our agents or underwriters, or among our underwriters, or the basis upon which such amount may be calculated. See “Plan of Distribution.” The Prospectus Supplement relating to any offering of rights will set forth the number of common shares issuable upon the exercise of each right (or number of rights) and the other terms of such rights offering. We may not sell any of our common shares through agents, underwriters or dealers without delivery of a Prospectus Supplement describing the method and terms of the particular offering of our common shares.

Use of Proceeds

The net proceeds from the issuance of common shares hereunder will be invested in accordance with our investment objective and policies as appropriate investment opportunities are identified, which is expected to be substantially completed in approximately three months from the date on which the proceeds from an offering are received by the Fund; however, the identification of appropriate investment opportunities pursuant to the Fund’s investment style or changes in market conditions could result in the Fund’s anticipated investment period extending to as long as six months. See “Use of Proceeds.”

Investment Objective and Policies

Please refer to the section of the Fund’s most recent annual report on Form N-CSR entitled “Investment Objectives, Policies and Risks—Investment Objectives and Policies—BlackRock Income Trust, Inc.”, which is incorporated by reference herein, for a discussion of the Fund’s investment objective and policies.

Leverage

The Fund uses leverage to seek to achieve its investment objective. The Fund’s use of leverage may increase or decrease from time to time in its discretion and the Fund may, in the future, determine not to use leverage. The Fund currently leverages its assets through the use of reverse repurchase agreements. As of [●], 2025, this leverage represented approximately [●]% of the Fund’s Managed Assets (approximately [●]% of the Fund net assets). The Fund currently does not intend to borrow money or issue debt securities or shares of preferred stock (“preferred shares”). Although it has no present intention to do so, the Fund reserves the right to borrow money from banks or other financial institutions or issue debt securities or preferred shares in the future if it believes that market conditions would be conducive to the successful implementation of a leveraging strategy through borrowing money or issuing debt securities or preferred shares. The Fund is permitted to borrow money from banks or otherwise in an amount up to 33 1/3% of its Managed Assets (50% of its net assets). “Managed Assets” means the total assets of the Fund (including any assets attributable to money borrowed for investment purposes) minus the sum of the Fund’s accrued liabilities (other than money borrowed for investment purposes). See “Leverage.”

The use of leverage is subject to numerous risks. When leverage is employed, the Fund’s NAV, the market price of the common shares and the yield to holders of common shares will be more volatile than if leverage were not used. For example, a rise in short-term interest rates generally will cause the Fund’s NAV to decline more than if the Fund had not used leverage. A reduction in the Fund’s NAV may cause a reduction in the market price of the Fund’s common shares. A failure to pay dividends or make distributions due to leverage could result in the Fund ceasing to qualify as a regulated investment company under the Internal Revenue Code of 1986, as amended (the “Code”).

The Fund cannot assure you that the use of leverage will result in a higher yield on the Fund’s common shares. Any leveraging strategy the Fund employs may not be successful.

Investment Advisor and Sub-Advisor

BlackRock Advisors, LLC (the “Advisor”) is the Fund’s investment adviser. BlackRock International Limited (“BIL”) serves as sub-adviser to the Fund (the “Sub-Adviser” and, together with the Advisor , the “Advisors”). The Advisor and the Sub-Advisor are subsidiaries of BlackRock, Inc. The Advisor receives an annual fee, payable monthly, in an amount equal to 0.65% of the average weekly value of the Fund’s Net Assets. “Net Assets” means the total assets of the Fund minus the sum of its accrued liabilities (including the aggregate indebtedness constituting financial leverage). The Advisor, and not the Fund, pays BIL, for services it provides for that portion of the Fund for which BIL acts as sub-adviser, a monthly fee that is equal to a percentage of the investment advisory fees paid by the Fund to the Advisor. See “Management of the Fund—Investment Advisor and Sub-Advisor.”

Distributions

The Fund distributes to shareholders monthly dividends of net investment income and all or a portion of net short-term capital gains.

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The Fund has adopted a plan to support a level distribution of income, capital gains and/or return of capital (the “Distribution Plan”). The Distribution Plan has been approved by the Fund’s Board of Directors (the “Board”) and is consistent with the Fund’s investment objective and policies. The fixed amount distributed per share is subject to change at the discretion of the Board. The Fund is currently not relying on any exemptive relief from Section 19(b) of the Investment Company Act of 1940, as amended (the “Investment Company Act”). Under its Distribution Plan, the Fund will distribute all available investment income to its shareholders as required by the Code. If sufficient income (inclusive of net investment income and short-term capital gains) is not earned on a monthly basis, the Fund will distribute long-term capital gains and/or return of capital to shareholders in order to maintain a level distribution. A return of capital distribution may involve a return of the shareholder’s original investment. Though not currently taxable, such a distribution may lower a shareholder’s basis in the Fund, thus potentially subjecting the shareholder to future tax consequences in connection with the sale of Fund shares, even if sold at a loss to the shareholder’s original investment. Each monthly distribution to shareholders is expected to be at the fixed amount established by the Board; however, the Fund may make additional distributions from time to time, including additional capital gain distributions at the end of the taxable year, if required to meet requirements imposed by the Code and/or the Investment Company Act. Shareholders should not draw any conclusions about the Fund’s investment performance from the amount of these distributions or from the terms of the Distribution Plan. The Board may amend, suspend or terminate the Distribution Plan without prior notice if it deems such actions to be in the best interests of the Fund or its shareholders.

Various factors will affect the level of the Fund’s income, including the asset mix and the Fund’s use of hedging. To permit the Fund to maintain a more stable monthly distribution, the Fund may from time to time distribute less than the entire amount of income earned in a particular period. The undistributed income would be available to supplement future distributions. As a result, the distributions paid by the Fund for any particular monthly period may be more or less than the amount of income actually earned by the Fund during that period. Undistributed income will add to the Fund’s NAV (and indirectly benefits the Advisor by increasing its fee) and, correspondingly, distributions from undistributed income will reduce the Fund’s NAV. The Fund intends to distribute any long-term capital gains not distributed under the Distribution Plan annually.

Shareholders will automatically have all dividends and distributions reinvested in common shares of the Fund in accordance with the Fund’s dividend reinvestment plan, unless an election is made to receive cash by contacting the Reinvestment Plan Agent (as defined herein), at (800) 699-1236. See “Dividend Reinvestment Plan.”

Under normal market conditions, the Advisor seeks to manage the Fund in a manner such that the Fund’s distributions are reflective of the Fund’s current and projected earnings levels. The distribution level of the Fund is subject to change based upon a number of factors, including the current and projected level of the Fund’s earnings, and may fluctuate over time.

The Fund reserves the right to change its distribution policy and the basis for establishing the rate of its monthly distributions at any time and may do so without prior notice to common shareholders. See “Distributions.”

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Listing

The Fund’s common shares are listed on the NYSE under the symbol “BKT.” See “Description of Capital Stock—Common Shares.”

Custodian and Transfer Agent

State Street Bank and Trust Company serves as the Fund’s custodian, and Computershare Trust Company, N.A. serves as the Fund’s transfer agent.

Administrator

State Street Bank and Trust Company serves as the Fund’s administrator and fund accountant.

Market Price of Shares

Common shares of closed-end investment companies frequently trade at prices lower than their NAV. The Fund cannot assure you that its common shares will trade at a price higher than or equal to NAV. See “Use of Proceeds.” The Fund’s common shares trade in the open market at market prices that are a function of several factors, including dividend levels (which are in turn affected by expenses), NAV, call protection for portfolio securities, portfolio credit quality, liquidity, dividend stability, relative demand for and supply of the common shares in the market, general market and economic conditions and other factors. See “Leverage,” “Risks,” “Description of Capital Stock” and “Repurchase of Common Shares.” The common shares are designed primarily for long-term investors and you should not purchase common shares of the Fund if you intend to sell them shortly after purchase.

Special Risk Considerations

An investment in common shares of the Fund involves risk. Please refer to the section of the Fund’s most recent annual report on Form N-CSR entitled “Investment Objectives, Policies and Risks—Risk Factors”, which is incorporated by reference herein, for a discussion of the risks of investing in the Fund. You should carefully consider those risks, which are described in more detail under “Risks” beginning on page 27 of this Prospectus, along with additional risks relating to investments in the Fund.

Certain Provisions in the Charter and Bylaws

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SUMMARY OF FUND EXPENSES


Shareholder Transaction Expenses
Sales load paid by you (as a percentage of offering price)⁽¹⁾			1.00%
Offering expenses borne by the Fund (as a percentage of offering price)⁽¹⁾			0.09%
Dividend reinvestment plan fees			$0.02 per share for open-market purchases of common shares⁽²⁾
Dividend reinvestment plan sale transaction fee			$2.50⁽²⁾
Estimated Annual Expenses (as a percentage of net assets attributable to common shares)
Management Fees⁽³⁾⁽⁴⁾			0.65%
Other Expenses⁽⁵⁾			2.10%
Miscellaneous Other Expenses			0.29%
Interest Expense⁽⁶⁾			1.81%
Total Annual Fund Operating Expenses			2.75%
Fee Waivers and/or Expense Reimbursements⁽⁴⁾			--%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements⁽⁴⁾			2.75%

(1)	If the common shares are sold to or through underwriters, the Prospectus Supplement will set forth any applicable sales load and the estimated offering expenses. Fund shareholders will pay all offering expenses involved with an offering.

(2)

The Reinvestment Plan Agent’s (as defined below under “Dividend Reinvestment Plan”) fees for the handling of the reinvestment of dividends will be paid by the Fund. However, you will pay a $0.02 per share fee incurred in connection with open-market purchases, which will be deducted from the value of the dividend. You will also be charged a $2.50 sales fee and pay a $0.15 per share fee if you direct the Reinvestment Plan Agent to sell your common shares held in a dividend reinvestment account. Per share fees include any applicable brokerage commissions the Reinvestment Plan Agent is required to pay.

(3)

The Fund currently pays the Advisor a monthly fee at an annual contractual investment management fee rate of 0.65% of the average weekly value of the Fund’s Net Assets. “Net Assets” means the total assets of the Fund minus the sum of its accrued liabilities (including the aggregate indebtedness constituting financial leverage).

(4)

The Fund and the Advisor have entered into a fee waiver agreement (the “Fee Waiver Agreement”), pursuant to which the Advisor has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets attributable to investments in any equity and fixed-income mutual funds and exchange-traded funds (“ETFs”) managed by the Advisor or its affiliates and other exchange-traded products sponsored by the Advisor or its affiliates, in each case that have a contractual management fee, through June 30, 2027. In addition, pursuant to the Fee Waiver Agreement, the Advisor has contractually agreed to waive its management fees by the amount of investment advisory fees the Fund pays to the Advisor indirectly through its investment in money market funds managed by the Advisor or its affiliates, through June 30, 2027. The Fee Waiver Agreement may be terminated at any time, without the payment of any penalty, only by the Fund (upon the vote of a majority of the Directors who are not “interested persons” (as defined in the Investment Company Act) of the Fund (the “Independent Directors”) or a majority of the outstanding voting securities of the Fund), upon 90 days’ written notice by the Fund to the Advisor.

(5)	“Other Expenses” have been restated to reflect current Acquired Fund Fees and Expenses, which are less than 0.01%.

(6)

Assumes the use of leverage in the form of reverse repurchase agreements representing 25.6% of Managed Assets at an annual interest expense to the Fund of 5.29% which is based on current market conditions. The actual amount of interest expense borne by the Fund will vary over time in accordance with the level of the Fund’s use of reverse repurchase agreements and variations in market interest rates. Interest expense is required to be treated as an expense of the Fund for accounting purposes.

The following example illustrates the expenses (including the sales load of $10.00 and offering costs of $0.90) that you would pay on a $1,000 investment in common shares, assuming (i) total net annual expenses of 2.75% of net assets attributable to common shares, and (ii) a 5% annual return:


	One Year	Three Years	Five Years	Ten Years
Total expenses incurred	$38	$95	$155	$316

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FINANCIAL HIGHLIGHTS

The financial highlights table is intended to help you understand the Fund’s financial performance for the periods presented. Certain information reflects financial results for a single Fund Share. The information for the fiscal years ended December 31, 2024, 2023, 2022, 2021 and 2020 has been audited by [ ], independent registered public accounting firm for the Fund. The report of [ ] is included in the Fund’s December 31, 2024 annual report, is incorporated by reference into the Prospectus and SAI and can be obtained by shareholders. The Fund’s financial statements are included in the Fund’s annual report and are incorporated by reference into the Prospectus and SAI.

(For a share outstanding throughout each period)


	BKT
	Year Ended 12/31/24		Year Ended 12/31/23		Year Ended 12/31/22^(a)		Year Ended 12/31/21^(a)		Year Ended 12/31/20^(a)

Net asset value, beginning of year		$12.73		$13.10		$16.94		$18.54		$18.89
Net investment income^(b)		0.36		0.32		0.43		0.70		0.86
Net realized and unrealized gain (loss)		(0.22)		0.37		(3.24)		(1.06)		0.02
Net increase (decrease) from investment operations		0.14		0.69		(2.81)		(0.36)		0.88
Distributions^(c)
From net investment income		(0.41)		(0.39)		(0.49)		(0.89)		(1.01)
Return of capital		(0.65)		(0.67)		(0.54)		(0.3)		(0.22)
Total distributions		(1.06)		(1.06)		(1.03)		(1.24)		(1.23)
Net asset value, end of year		$11.81		$12.73		$13.10		$16.94		$18.54

Market price, end of year		$11.52		$12.18		12.34		$16.95		$18.21

Total Return^(d)
Based on net asset value		1.32%		6.03%		(16.67)%		(2.01)%		4.92%
Based on market price		3.29%		7.69%		(21.5)%		(0.23)%		7.31%

Ratios to Average Net Assets^(e)
Total expenses		2.75%		3.23%		1.65%		0.94%		1.18%
Total expenses after fees waived and/or reimbursed		2.75%		3.23%		1.64%		0.94%		1.18%
Total expenses after fees waived and/or reimbursed and excluding interest expense		0.93%		0.92%		0.95%		0.90%		0.89%
Net investment income		2.96%		2.50%		2.94%		3.91%		4.55%

Supplemental Data
Net assets, end of year (000)		$251,630		$271,329		$279,035		$360,752		$394,195
Borrowings outstanding, end of year (000)		$76,794		$111,020		$115,764		$115,184		$156,936

Portfolio turnover rate^(f)		269%		221%		237%		248%		69%

^(a)	Per share operating performance amounts have been adjusted to reflect a 1-for-3 reverse stock split prior to the open of trading on the NYSE on October 18, 2022 for common stockholders of record as of the close of business on October 17, 2022.

^(b)	Based on average shares outstanding.

^(c)	Distributions for annual periods determined in accordance with U.S. federal income tax regulations.

^(d)	Total returns based on market price, which can be significantly greater or less than the net asset value, may result in substantially different returns. Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions at actual reinvestment prices.

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(For a share outstanding throughout each period)


	BKT
	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			Year Ended August 31,
	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			2018			2017			2016			2015

Net asset value, beginning of period	$	6.25		$	6.31		$	6.74		$	6.96		$	7.08		$	7.27


Net investment income^(a)		0.25			0.08			0.24			0.25			0.28			0.32
Net realized and unrealized gain (loss)		0.21			0.03			(0.34	)		(0.15	)		(0.05	)		(0.11	)


Net increase (decrease) from investment operations		0.46			0.11			(0.10	)		0.10			0.23			0.21


Distributions^(b)
From net investment income		(0.29	)		(0.13	)		(0.30	)		(0.32	)		(0.35	)		(0.40	)
From return of capital		(0.12	)		(0.04	)		(0.03	)		—			—			—


Total distributions		(0.41	)		(0.17	)		(0.33	)		(0.32	)		(0.35	)		(0.40	)


Net asset value, end of period	$	6.30		$	6.25		$	6.31		$	6.74		$	6.96		$	7.08


Market price, end of period	$	6.05		$	5.64		$	5.77		$	6.31		$	6.60		$	6.30


Total Return^(c)
Based on net asset value		7.91	%		2.06	%^(d)		(1.14	)%		1.82	%		3.64	%		3.56	%


Based on market price		14.83	%		0.72	%^(d)		(3.44	)%		0.53	%		10.44	%		4.35	%


Ratios to Average Net Assets^(e)
Total expenses		2.06	%		2.08	%^(f)(g)		1.79	%		1.29	%		1.08	%		0.99	%^(h)


Total expenses after fees waived and/or reimbursed		2.06	%		2.08	%^(f)		1.79	%		1.28	%		1.08	%		0.99	%^(h)


Total expenses after fees waived and/or reimbursed and excluding interest expense		0.94	%		0.99	%^(f)		1.04	%		0.90	%		0.89	%		0.90	%^(h)


Net investment income		3.95	%		4.04	%^(f)		3.72	%		3.63	%		4.01	%		4.48	%



Supplemental Data
Net assets applicable to Common Shareholders, end of period (000)	$	401,715		$	398,629		$	402,763		$	430,830		$	444,882		$	452,616


Borrowings outstanding, end of period (000)	$	175,655		$	186,799		$	186,441		$	185,769		$	152,859		$	173,695


Portfolio turnover rate⁽ⁱ⁾		255	%		95	%		373	%		346	%		141	%		191	%

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^(a)	Based on average shares outstanding.

^(b)	Distributions for annual periods determined in accordance with U.S. federal income tax regulations.

^(c)	Total returns based on market price, which can be significantly greater or less than the net asset value, may result in substantially different returns. Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions at actual reinvestment prices.

^(d)	Aggregate total return.

^(e)	Excludes expenses incurred indirectly as a result of investments in underlying funds as follows:


	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			Year Ended August 31,
	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			2018			2017			2016			2015
Investments in underlying funds		—	%		—	%		0.01	%		0.01	%		—	%		—	%

^(f)	Annualized.

^(g)	Audit fees were not annualized in the calculation of the expenses ratios. If these expenses were annualized, the total expenses would have been 2.11%.

^(h)	Includes reorganization costs. Without these costs, total expenses, total expenses after fees waived and paid indirectly, and total expenses after fees waived and paid indirectly and excluding interest expense would have been 0.99%, 0.99% and 0.89% for the year ended August 31, 2015.

⁽ⁱ⁾	Includes MDRs. Additional information regarding portfolio turnover rate is as follows:


	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			Year Ended August 31,
	Year Ended 12/31/19			Period from 09/01/18 to 12/31/18			2018			2017			2016			2015
Portfolio turnover rate (excluding MDRs)		136	%		45	%		181	%		161	%		63	%		78	%

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USE OF PROCEEDS

The net proceeds from the issuance of common shares hereunder will be invested in accordance with the Fund’s investment objective and policies as stated below. We currently anticipate that we will be able to invest all of the net proceeds in accordance with our investment objective and policies within approximately three months from the date on which the proceeds from an offering are received by the Fund. Such investments may be delayed if suitable investments are unavailable at the time or for other reasons, such as market volatility and lack of liquidity in the markets for suitable investments. Pending such investment, it is anticipated that the proceeds will be invested in short-term investment grade securities or in high quality, short-term money market instruments.

THE FUND

The Fund is a diversified, closed-end management investment company registered under the Investment Company Act. The Fund is incorporated as a Maryland corporation pursuant to its Charter governed by the laws of the State of Maryland. The Fund was incorporated under the laws of the State of Maryland on April 22, 1988, and commenced operations on July 22, 1988, upon the initiation of an initial public offering of its common shares. The Fund’s principal office is located at 100 Bellevue Parkway, Wilmington, Delaware 19809, and its telephone number is (800) 882-0052. The Fund’s common shares are traded on the NYSE under the symbol “BKT.”

DESCRIPTION OF CAPITAL STOCK

The Fund is authorized to issue 200,000,000 shares of capital stock, par value $.01 per share, all of which shares are classified as common shares.

Common Shares

Common shares, when issued and outstanding, will be fully paid and non-assessable. Shareholders are entitled to share pro rata in the net assets of the Fund available for distribution to shareholders upon liquidation of the Fund. Shareholders are entitled to one vote for each share held.

In the event that the Fund issues preferred shares and so long as any of the Fund’s preferred shares are outstanding, holders of common shares will not be entitled to receive any net income of or other distributions from the Fund unless all accumulated dividends on preferred shares have been paid, and unless asset coverage (as defined in the Investment Company Act) with respect to preferred shares would be at least 200% after giving effect to such distributions. See “Leverage—Preferred Shares.”

The Fund will send unaudited reports at least semi-annually and audited annual financial statements to all of its shareholders.

Unlike open-end funds, closed-end funds like the Fund do not continuously offer shares and do not provide daily redemptions. Rather, if a shareholder determines to buy additional common shares or sell shares already held, the shareholder may do so by trading through a broker on the NYSE or otherwise. Shares of closed-end investment companies frequently trade on an exchange at prices lower than NAV. Shares of closed-end investment companies like the Fund have during some periods traded at prices higher than NAV and during other periods have traded at prices lower than NAV. Because the market value of the common shares may be influenced by such factors as dividend levels (which are in turn affected by expenses), call protection on its portfolio securities, dividend stability, portfolio credit quality, the Fund’s NAV, relative demand for and supply of such shares in the market, general market and economic conditions and other factors beyond the control of the Fund, the Fund cannot assure you that its common shares will trade at a price equal to or higher than NAV in the future. The common shares are designed primarily for long-term investors and you should not purchase the common shares if you intend to sell them soon after purchase. See “Repurchase of Common Shares” below and “Repurchase of Common Shares” in the SAI.

The Fund’s outstanding common shares are, and when issued, the common shares offered by this Prospectus will be, publicly held and listed and traded on the NYSE under the symbol “BKT.” The Fund determines its NAV on a daily basis. The following table sets forth, for the quarters indicated, the highest and lowest daily closing prices on the

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NYSE per common share, and the NAV per common share and the premium to or discount from NAV, on the date of each of the high and low market prices. The table also sets forth the number of common shares traded on the NYSE during the respective quarters.


	NYSE Market Price Per Common Share				NAV per Common Share on Date of Market Price				Premium/ (Discount) on Date of Market Price				Trading
During Quarter Ended	High		Low		High		Low		High		Low		Volume
June 30, 2025		$ [●]		$ [●]		$ [●]		$ [●]		[●]%		[●]%		[●]
March 31, 2025		$ 11.85		$ 11.32		$ 11.99		$ 11.60		(1.17)%		(2.41)%		3,781,973
December 31, 2024		$ 12.53		$ 11.39		$ 12.70		$ 11.76		(1.34)%		(3.15)%		3,964,773
September 30, 2024		$ 12.61		$ 11.77		$ 12.82		$ 11.97		(1.64)%		(1.67)%		4,057,128
June 30, 2024		$ 11.93		$ 11.12		$ 12.06		$ 11.75		(1.08)%		(5.36)%		4,052,428
March 31, 2024		$ 12.36		$ 11.73		$ 12.73		$ 12.19		(2.95)%		(3.77)%		3,803,044
December 31, 2023		$ 12.60		$ 10.56		$ 12.81		$ 11.52		(1.64)%		(8.33)%		4,901,930
September 30, 2023		$ 12.32		$ 11.15		$ 12.83		$ 11.95		(3.98)%		(6.69)%		3,041,993
June 30, 2023		$ 12.87		$ 12.12		$ 13.56		$ 12.72		(5.09)%		(4.72)%		3,324,123
March 31, 2023		$ 13.27		$ 12.39		$ 13.73		$ 12.97		(3.35)%		(4.47)%		3,858,408

As of [●], 2025, the NAV per common share of the Fund was $[●] and the market price per common share was $[●], representing a [premium/discount] to NAV of [●]%. [Common shares of the Fund have historically traded at both a premium and discount to NAV.]

As of [●], 2025, the Fund has [●] common shares outstanding.

Preferred Shares

In the event the Fund issues preferred shares, it is anticipated that such preferred shares will be issued in one or more series, with rights as determined by the Board of Directors, by action of the Board of Directors and with the approval of the shareholders. Under the Investment Company Act, the Fund is permitted to have outstanding more than one series of preferred shares so long as no single series has a priority over another series as to the distribution of assets of the Fund or the payment of dividends. Under the charter, holders of common shares will have no preemptive right to purchase any shares of preferred shares that might be issued. It is anticipated that the NAV per share of any preferred shares to be issued by the Fund will equal its original purchase price per share plus accumulated dividends per share. The Fund does not currently intend to issue preferred shares.

Under the Investment Company Act, the Fund is not permitted to issue preferred shares unless immediately after such issuance the value of the Fund’s total assets is at least 200% of the liquidation value of the outstanding preferred shares (i.e., the liquidation value may not exceed 50% of the Fund’s total assets). In addition, the Fund is not permitted to declare any cash dividend or other distribution on its common shares unless, at the time of such declaration, the value of the Fund’s total assets is at least 200% of such liquidation value. If the Fund issues preferred shares, it may be subject to restrictions imposed by the guidelines of one or more rating agencies that may issue ratings for preferred shares issued by the Fund. These guidelines may impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the Investment Company Act. It is not anticipated that these covenants or guidelines would impede the Advisors from managing the Fund’s portfolio in accordance with the Fund’s investment objective and policies. Please see “Description of Capital Stock” in the SAI for more information.

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Authorized and Outstanding Shares

The following table provides the Fund’s authorized shares and common shares outstanding as of June 16, 2025.

Title of Class

Amount
Authorized

Amount
Held
by Fund
or
for its
Account

Amount
Outstanding
Exclusive of
Amount
held by
Fund

Common Shares

200,000,000

24,291,714

THE FUND’S INVESTMENTS

Investment Objective and Policies

Portfolio Contents and Techniques

The Fund’s portfolio will be composed principally of the following investments. Additional information with respect to the Fund’s investment policies and restrictions and certain of the Fund’s portfolio investments is contained in the SAI.

Mortgage Related Securities.

Mortgage-Backed Securities. Mortgage-backed securities (“MBS”) include structured debt obligations collateralized by pools of commercial (“CMBS”) or residential (“RMBS”) mortgages. Pools of mortgage loans and mortgage-backed loans, such as mezzanine loans, are assembled as securities for sale to investors by various governmental, government-related and private organizations. MBS include complex instruments such as collateralized mortgage obligations (“CMOs”), stripped MBS, mortgage pass-through securities and interests in real estate mortgage investment conduits (“REMICs”). The MBS in which the Fund may invest include those with fixed, floating or variable interest rates, those with interest rates that change based on multiples of changes in a specified reference interest rate or index of interest rates and those with interest rates that change inversely to changes in interest rates, as well as those that do not bear interest. The Fund may invest in RMBS and CMBS issued by governmental entities and private issuers, including subordinated MBS and residual interests. The Fund may invest in sub-prime mortgages or MBS that are backed by sub-prime mortgages.

In general, losses on a mortgaged property securing a mortgage loan included in a securitization will be borne first by the equity holder of the property, then by a cash reserve fund or letter of credit, if any, then by the holder of a mezzanine loan or B-Note, if any, then by the “first loss” subordinated security holder (generally, the “B-Piece” buyer) and then by the holder of a higher rated security. The Fund may invest in any class of security included in a securitization. In the event of default and the exhaustion of any equity support, reserve fund, letter of credit, mezzanine loans or B-Notes, and any classes of securities junior to those in which the Fund invests, the Fund will not be able to recover all of its investment in the MBS it purchases. MBS in which the Fund invests may not contain reserve funds, letters of credit, mezzanine loans and/or junior classes of securities. The prices of lower credit quality securities are generally less sensitive to interest rate changes than more highly rated investments, but more sensitive to adverse economic downturns or individual issuer developments.

Mortgage Pass-Through Securities. Mortgage pass-through securities differ from other forms of fixed-income securities, which normally provide for periodic payment of interest in fixed amounts with principal payments at maturity or specified call dates. Instead, these securities provide a monthly payment which consists of

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both interest and principal payments. In effect, these payments are a “pass through” of the monthly payments made by the individual borrowers on their residential or commercial mortgage loans, net of any fees paid to the issuer or guarantor of such securities. Additional payments are caused by repayments of principal resulting from the sale of the underlying property, refinancing or foreclosure, net of fees or costs that may be incurred. Some mortgage related securities (such as securities issued by the Government National Mortgage Association (“GNMA”)) are described as “modified pass-through.” These securities entitle the holder to receive all interest and principal payments owed on the mortgage pool, net of certain fees, at the scheduled payment dates regardless of whether or not the mortgagor actually makes the payment.

RMBS. RMBS are securities the payments on which depend primarily on the cash flow from residential mortgage loans made to borrowers that are secured on a first priority basis or second priority basis, subject to permitted liens, easements and other encumbrances by residential real estate (one- to four-family properties), the proceeds of which are used to purchase real estate and purchase or construct dwellings thereon or to refinance indebtedness previously used for such purposes. Non-agency residential mortgage loans are obligations of the borrowers thereunder only and are not typically insured or guaranteed by any other person or entity. The ability of a borrower to repay a loan secured by residential property is dependent upon the income or assets of the borrower. A number of factors, including a general economic downturn, acts of God, terrorism, social unrest and civil disturbances, may impair a borrower’s ability to repay its loans.

Agency RMBS. The principal U.S. Governmental guarantor of mortgage related securities is GNMA, which is a wholly owned U.S. Government corporation. GNMA is authorized to guarantee, with the full faith and credit of the U.S. Government, the timely payment of principal and interest on securities issued by institutions approved by GNMA (such as savings and loan institutions, commercial banks and mortgage bankers) and backed by pools of mortgages insured by the Federal Housing Administration (“FHA”), or guaranteed by the Department of Veterans Affairs (“VA”). MBS issued by GNMA include GNMA Mortgage Pass-Through Certificates (also known as “Ginnie Maes”) which are guaranteed as to the timely payment of principal and interest by GNMA and such guarantees are backed by the full faith and credit of the United States. GNMA certificates also are supported by the authority of GNMA to borrow funds from the U.S. Treasury to make payments under its guarantee.

Government-related guarantors (i.e., not backed by the full faith and credit of the U.S. Government) include the Federal National Mortgage Association (“FNMA”) and the Federal Home Loan Mortgage Corporation (“FHLMC”). FNMA is a government-sponsored corporation the common stock of which is owned entirely by private stockholders. FNMA purchases conventional (i.e., not insured or guaranteed by any government agency) residential mortgages from a list of approved seller/servicers which include state and federally chartered savings and loan associations, mutual savings banks, commercial banks and credit unions and mortgage bankers. Pass-through securities issued by FNMA (also known as “Fannie Maes”) are guaranteed as to timely payment of principal and interest by FNMA, but are not backed by the full faith and credit of the U.S. Government. FHLMC was created by Congress in 1970 for the purpose of increasing the availability of mortgage credit for residential housing. It is a government-sponsored corporation that issues FHLMC Guaranteed Mortgage Pass-Through Certificates (also known as “Freddie Macs” or “PCs”), which are pass-through securities, each representing an undivided interest in a pool of residential mortgages. FHLMC guarantees the timely payment of interest and ultimate collection of principal, but PCs are not backed by the full faith and credit of the U.S. Government.

In 2008, the Federal Housing Finance Agency (“FHFA”) placed FNMA and FHLMC into conservatorship. FNMA and FHLMC are continuing to operate as going concerns while in conservatorship and each remains liable for all of its obligations, including its guaranty obligations, associated with its MBS.

As the conservator, FHFA succeeded to all rights, titles, powers and privileges of FNMA and FHLMC and of any stockholder, officer or director of FNMA and FHLMC with respect to FNMA and FHLMC and the assets of FNMA and FHLMC. In connection with the conservatorship, the U.S. Treasury entered into a Senior Preferred Stock Purchase Agreement with each of FNMA and FHLMC pursuant to which the U.S. Treasury would purchase up to an aggregate of $100 billion of each of FNMA and FHLMC to maintain a positive net worth in each enterprise. This agreement contains various covenants that severely limit each enterprise’s operations. In exchange for entering into these agreements, the U.S. Treasury received $1 billion of each enterprise’s senior preferred stock and warrants to purchase 79.9% of each enterprise’s common stock. In February 2009, the U.S. Treasury doubled the size of its commitment to each enterprise under the Senior Preferred Stock Program to $200 billion. The U.S.

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Treasury’s obligations under the Senior Preferred Stock Program are for an indefinite period of time for a maximum amount of $200 billion per enterprise. In December 2009, the U.S. Treasury announced further amendments to the Senior Preferred Stock Purchase Agreements which included additional financial support to certain governmentally supported entities, including the Federal Home Loan Banks (“FHLBs”), FNMA and FHLMC. It is difficult, if not impossible, to predict the future political, regulatory or economic changes that could impact FNMA, FHLMC and the FHLBs, and the values of their related securities or obligations. There is no assurance that the obligations of such entities will be satisfied in full, or that such obligations will not decrease in value or default.

Under the Federal Housing Finance Regulatory Reform Act of 2008 (the “Reform Act”), which was included as part of the Housing and Economic Recovery Act of 2008, FHFA, as conservator or receiver, has the power to repudiate any contract entered into by FNMA or FHLMC prior to FHFA’s appointment as conservator or receiver, as applicable, if FHFA determines, in its sole discretion, that performance of the contract is burdensome and that repudiation of the contract promotes the orderly administration of FNMA’s or FHLMC’s affairs. The Reform Act requires FHFA to exercise its right to repudiate any contract within a reasonable period of time after its appointment as conservator or receiver. FHFA, in its capacity as conservator, has indicated that it has no intention to repudiate the guaranty obligations of FNMA or FHLMC because FHFA views repudiation as incompatible with the goals of the conservatorship. However, in the event that FHFA, as conservator or if it is later appointed as receiver for FNMA or FHLMC, were to repudiate any such guaranty obligation, the conservatorship or receivership estate, as applicable, would be liable for actual direct compensatory damages in accordance with the provisions of the Reform Act. Any such liability could be satisfied only to the extent of FNMA’s or FHLMC’s assets available therefor. In the event of repudiation, the payments of interest to holders of FNMA or FHLMC MBS would be reduced if payments on the mortgage loans represented in the mortgage loan groups related to such MBS are not made by the borrowers or advanced by the servicer. Any actual direct compensatory damages for repudiating these guaranty obligations may not be sufficient to offset any shortfalls experienced by such mortgage-backed security holders. Further, in its capacity as conservator or receiver, FHFA has the right to transfer or sell any asset or liability of FNMA or FHLMC without any approval, assignment or consent. Although FHFA has stated that it has no present intention to do so, if FHFA, as conservator or receiver, were to transfer any such guaranty obligation to another party, holders of FNMA or FHLMC MBS would have to rely on that party for satisfaction of the guaranty obligation and would be exposed to the credit risk of that party. In addition, certain rights provided to holders of MBS issued by FNMA and FHLMC under the operative documents related to such securities may not be enforced against FHFA, or enforcement of such rights may be delayed, during the conservatorship or any future receivership. The operative documents for FNMA and FHLMC MBS may provide (or with respect to securities issued prior to the date of the appointment of the conservator may have provided) that upon the occurrence of an event of default on the part of FNMA or FHLMC, in its capacity as guarantor, which includes the appointment of a conservator or receiver, holders of such MBS have the right to replace FNMA or FHLMC as trustee if the requisite percentage of MBS holders consent. The Reform Act prevents mortgage-backed security holders from enforcing such rights if the event of default arises solely because a conservator or receiver has been appointed.

Non-Agency RMBS. Non-agency RMBS are issued by commercial banks, savings and loan institutions, mortgage bankers, private mortgage insurance companies and other non-governmental issuers. Timely payment of principal and interest on RMBS backed by pools created by non-governmental issuers often is supported partially by various forms of insurance or guarantees, including individual loan, title, pool and hazard insurance. The insurance and guarantees are issued by government entities, private insurers and the mortgage poolers. There can be no assurance that the private insurers or mortgage poolers can meet their obligations under the policies, so that if the issuers default on their obligations, the holders of the security could sustain a loss. No insurance or guarantee covers the Fund or the price of the Fund’s common shares. RMBS issued by non-governmental issuers generally offer a higher rate of interest than government agency and government-related securities because there are no direct or indirect government guarantees of payment.

CMBS. CMBS generally are multi-class debt or pass-through certificates secured or backed by mortgage loans on commercial properties. CMBS generally are structured to provide protection to the senior class investors against potential losses on the underlying mortgage loans. This protection generally is provided by having the holders of subordinated classes of securities (“Subordinated CMBS”) take the first loss if there are defaults on the underlying commercial mortgage loans. Other protection, which may benefit all of the classes or particular classes, may include issuer guarantees, reserve funds, additional Subordinated CMBS, cross-collateralization and over-collateralization.

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The Fund may invest in Subordinated CMBS, which are subordinated in some manner as to the payment of principal and/or interest to the holders of more senior CMBS arising out of the same pool of mortgages and which are often referred to as “B-Pieces.” The holders of Subordinated CMBS typically are compensated with a higher stated yield than are the holders of more senior CMBS. On the other hand, Subordinated CMBS typically subject the holder to greater risk than senior CMBS and tend to be rated in a lower rating category (frequently a substantially lower rating category) than the senior CMBS issued in respect of the same mortgage pool. Subordinated CMBS generally are likely to be more sensitive to changes in prepayment and interest rates and the market for such securities may be less liquid than is the case for traditional income securities and senior CMBS.

CMOs. A CMO is a multi-class bond backed by a pool of mortgage pass-through certificates or mortgage loans. CMOs may be collateralized by (i) GNMA, FNMA or FHLMC pass-through certificates, (ii) unsecuritized mortgage loans insured by the FHA or guaranteed by the VA, (iii) unsecuritized conventional mortgages, (iv) other MBS or (v) any combination thereof. Each class of a CMO, often referred to as a “tranche,” is issued at a specific coupon rate and has a stated maturity or final distribution date. Principal prepayments on collateral underlying a CMO may cause it to be retired substantially earlier than its stated maturity or final distribution date. The principal and interest on the underlying mortgages may be allocated among the several classes of a series of a CMO in many ways. One or more tranches of a CMO may have coupon rates which reset periodically at a specified increment over an index, such as the London Interbank Offered Rate (“LIBOR”) (or sometimes more than one index). These floating rate CMOs typically are issued with lifetime caps on the coupon rate thereon. The Fund does not intend to invest in CMO residuals, which represent the interest in any excess cash flow remaining after making the payments of interest and principal on the tranches issued by the CMO and the payment of administrative expenses and management fees.

The Fund may invest in inverse floating rate CMOs. Inverse floating rate CMOs constitute a tranche of a CMO with a coupon rate that moves in the reverse direction relative to an applicable index such as LIBOR. Accordingly, the coupon rate thereon will increase as interest rates decrease. Inverse floating rate CMOs are typically more volatile than fixed or floating rate tranches of CMOs. Many inverse floating rate CMOs have coupons that move inversely to a multiple of an index. The effect of the coupon varying inversely to a multiple of an applicable index creates a leverage factor. Inverse floating rate debt instruments (“inverse floaters”) based on multiples of a stated index are designed to be highly sensitive to changes in interest rates and can subject the holders thereof to extreme reductions of yield and loss of principal. The market for inverse floating rate CMOs with highly leveraged characteristics at times may be very thin. The Fund’s ability to dispose of its positions in such securities will depend on the degree of liquidity in the markets for such securities. It is impossible to predict the amount of trading interest that may exist in such securities, and therefore the future degree of liquidity.

Stripped MBS. Stripped MBS are created by segregating the cash flows from underlying mortgage loans or mortgage securities to create two or more new securities, each receiving a specified percentage of the underlying security’s principal or interest payments. Mortgage securities may be partially stripped so that each investor class receives some interest and some principal. When securities are completely stripped, however, all of the interest is distributed to holders of one type of security, known as an interest-only security (or “IO”), and all of the principal is distributed to holders of another type of security, known as a principal-only security (or “PO”). Strips can be created in a pass-through structure or as tranches of a CMO. The yields to maturity on IOs and POs are very sensitive to the rate of principal payments (including prepayments) on the related underlying mortgage assets. If the underlying mortgage assets experience greater than anticipated prepayments of principal, the Fund may not fully recoup its initial investment in IOs. Conversely, if the underlying mortgage assets experience less than anticipated prepayments of principal, the yield on POs could be materially and adversely affected.

Adjustable Rate Mortgage Securities. Adjustable rate mortgages (“ARMs”) have interest rates that reset at periodic intervals. Acquiring ARMs permits the Fund to participate in increases in prevailing current interest rates through periodic adjustments in the coupons of mortgages underlying the pool on which ARMs are based. Such ARMs generally have higher current yield and lower price fluctuations than is the case with more traditional fixed-income securities of comparable rating and maturity. In addition, when prepayments of principal are made on the underlying mortgages during periods of rising interest rates, the Fund may potentially reinvest the proceeds of such prepayments at rates higher than those at which they were previously invested. Mortgages underlying most ARMs, however, have limits on the allowable annual or lifetime increases that can be made in the interest rate that the mortgagor pays. Therefore, if current interest rates rise above such limits over the period of the limitation, the Fund,

- 16 -

when holding an ARM, does not benefit from further increases in interest rates. Moreover, when interest rates are in excess of the coupon rates (i.e., the rates being paid by mortgagors) of the mortgages, ARMs behave more like fixed-income securities and less like adjustable-rate securities and are subject to the risks associated with fixed-income securities. In addition, during periods of rising interest rates, increases in the coupon rate of ARMs generally lag current market interest rates slightly, thereby creating the potential for capital depreciation on such securities.

Sub-Prime Mortgages. Sub-prime mortgages are mortgages rated below “A” by Moody’s, S&P or Fitch. Historically, sub-prime mortgage loans have been made to borrowers with blemished (or non-existent) credit records, and the borrower is charged a higher interest rate to compensate for the greater risk of delinquency and the higher costs of loan servicing and collection. Sub-prime mortgages are subject to both state and federal anti-predatory lending statutes that carry potential liability to secondary market purchasers such as the Fund. Sub-prime mortgages have certain characteristics and associated risks similar to below investment grade securities, including a higher degree of credit risk, and certain characteristics and associated risks similar to MBS, including prepayment risk.

Mortgage REITs. A real estate investment trust (“REIT”) is a corporation, or a business trust that would otherwise be taxed as a corporation, that meets the definitional requirements applicable to REITs under the Internal Revenue Code of 1986, as amended (the “Code”). The Code permits a qualifying REIT to deduct dividends paid, thereby generally eliminating corporate level U.S. federal income tax and effectively making the REIT a pass-through vehicle for U.S. federal income tax purposes. To meet the definitional requirements of the Code, a REIT must, among other things, invest substantially all of its assets in interests in real estate (including mortgages and other REITs) or cash and government securities, derive most of its income from rents from real property or interest on loans secured by mortgages on real property, and distribute to shareholders annually substantially all of its otherwise taxable income. Mortgage REITs invest mostly in mortgages on real estate, which may secure construction, development or long-term loans, and the main source of their income is mortgage interest payments. The value of securities issued by REITs is affected by tax and regulatory requirements and by perceptions of management skill. They also are subject to heavy cash flow dependency and the possibility of failing to qualify for REIT status under the Code or to maintain exemption from the Investment Company Act.

Mortgage Related Derivative Instruments. The Fund may invest in MBS credit default swaps. MBS credit default swaps include swaps the reference obligation for which is an MBS or related index, such as the CMBX Index (a tradeable index referencing a basket of CMBS), the TRX Index (a tradeable index referencing total return swaps based on CMBS) or the ABX Index (a tradeable index referencing a basket of sub-prime MBS). The Fund may engage in other derivative transactions related to MBS, including purchasing and selling exchange-listed and over-the-counter put and call options, futures and forwards on mortgages and MBS. The Fund may invest in newly developed mortgage related derivatives that may hereafter become available.

Other Mortgage Related Securities. Other mortgage related securities include securities other than those described above that directly or indirectly represent a participation in, or are secured by and payable from, mortgage loans on real property. Other mortgage related securities may be equity or debt securities issued by agencies or instrumentalities of the U.S. Government or by private originators of, or investors in, mortgage loans, including savings and loan associations, homebuilders, mortgage banks, commercial banks, investment banks, partnerships, trusts and special purpose entities of the foregoing.

Asset-Backed Securities. Asset-backed securities (“ABS”) are a form of structured debt obligation. The securitization techniques used for ABS are similar to those used for MBS. ABS are bonds backed by pools of loans or other receivables. The collateral for these securities may include home equity loans, automobile and credit card receivables, boat loans, computer leases, airplane leases, mobile home loans, recreational vehicle loans and hospital account receivables. The Fund may invest in these and other types of ABS that may be developed in the future. ABS present certain risks that are not presented by mortgage related securities. Primarily, these securities may provide the Fund with a less effective security interest in the related collateral than do mortgage related securities. Therefore, there is the possibility that recoveries on the underlying collateral may not, in some cases, be available to support payments on these securities.

Collateralized Loan Obligations. A Collateralized Loan Obligation (“CLO”) is a structured debt security, issued by a financing company (generally called a special purpose vehicle or “SPV”), that was created to reapportion the risk

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and return characteristics of a pool of bank loans. Investors in CLOs bear the credit risk of the underlying collateral. The bank loans are used as collateral supporting the various debt tranches issued by the SPV. Multiple tranches of securities are issued by the CLO, offering investors various maturity and credit risk characteristics. Tranches are categorized as senior, mezzanine, or subordinated/equity, according to their degree of risk. The key feature of the CLO structure is the prioritization of the cash flows from a pool of debt securities among the several classes of the CLO. If there are defaults or the CLO’s collateral otherwise underperforms, scheduled payments to senior tranches take precedence over those of mezzanine tranches, and scheduled payments to mezzanine tranches take precedence over those to subordinated/equity tranches. The Fund may invest in the equity or residual portion of the capital structure of CLOs. The SPV is a company founded solely for the purpose of securitizing payment claims. On this basis, marketable securities are issued which, due to the diversification of the underlying risk, generally represent a lower level of risk than the original assets. The redemption of the securities issued by the SPV takes place at maturity out of the cash flow generated by the collected claims. The vast majority of CLOs are actively managed by an independent investment manager.

U.S. Government Debt Securities. The Fund may invest in debt securities issued or guaranteed by the U.S. Government, its agencies or instrumentalities, including U.S. Treasury obligations, which differ in their interest rates, maturities and times of issuance. Such obligations include U.S. Treasury bills (maturity of one year or less), U.S. Treasury notes (maturity of one to ten years) and U.S. Treasury bonds (generally maturities of greater than ten years), including the principal components or the interest components issued by the U.S. Government under the separate trading of registered interest and principal securities program (i.e., “STRIPS”), all of which are backed by the full faith and credit of the United States.

Restricted and Illiquid Investments. The Fund may invest without limitation in illiquid or less liquid investments or investments in which no secondary market is readily available or which are otherwise illiquid, including private placement securities. Liquidity of an investment relates to the ability to dispose easily of the investment and the price to be obtained upon disposition of the investment, which may be less than would be obtained for a comparable more liquid investment. “Illiquid investments” are investments which cannot be sold within seven days in the ordinary course of business at approximately the value used by the Fund in determining its NAV. Illiquid investments may trade at a discount from comparable, more liquid investments. Illiquid investments are subject to legal or contractual restrictions on disposition or lack an established secondary trading market. Investment of the Fund’s assets in illiquid investments may restrict the ability of the Fund to dispose of its investments in a timely fashion and for a fair price as well as its ability to take advantage of market opportunities.

Strategic Transactions and Other Management Techniques. In addition to the MBS derivatives discussed herein, the Fund may use a variety of other investment management techniques and instruments. The Fund may purchase and sell futures contracts, enter into various interest rate transactions and may purchase and sell (or write) exchange-listed and over-the-counter put and call options on securities and futures contracts (collectively, “Strategic Transactions”). Strategic Transactions may be used to attempt to protect against possible changes in the market value of the Fund’s portfolio resulting from trends in the debt securities markets, to protect the Fund’s unrealized gains in the value of its portfolio securities, to facilitate the sale of such securities for investment purposes, to manage the dollar-weighted average life of the Fund’s portfolio or to establish a position in the securities markets as a temporary substitute for purchasing particular securities.

There is no particular strategy that requires use of one technique rather than another as the decision to use any particular strategy or instrument is a function of market conditions and the composition of the portfolio. The use of Strategic Transactions to enhance current income may be speculative. The ability of the Fund to use Strategic Transactions successfully will depend on the Advisors’ ability to predict pertinent market movements as well as sufficient correlation among the instruments, which cannot be assured. The use of Strategic Transactions may result in losses greater than if they had not been used, may require the Fund to sell or purchase portfolio securities at inopportune times or for prices other than current market values, may limit the amount of appreciation the Fund can realize on an investment or may cause the Fund to hold a security that it might otherwise sell. Certain provisions of the Code may restrict or affect the ability of the Fund to engage in Strategic Transactions. In addition, the use of certain Strategic Transactions may give rise to taxable income and have certain other consequences.

Interest Rate Transactions. The Fund may enter into interest rate swaps and purchase or sell interest rate caps and floors. The Fund expects to enter into these transactions primarily to preserve a return or spread on a particular

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investment or portion of its portfolio, as a duration management technique, to protect against any increase in the price of securities the Fund anticipates purchasing at a later date and/or to hedge against increases in the Fund’s costs associated with any leverage strategy. The Fund will ordinarily use these transactions as a hedge or for duration and risk management although it is permitted to enter into them to enhance income or gain. The Fund will not sell interest rate caps or floors that it does not own. Interest rate swaps involve the exchange by the Fund with another party of their respective commitments to pay or receive interest (e.g., an exchange of floating rate payments for fixed rate payments with respect to a notional amount of principal). The purchase of an interest rate cap entitles the purchaser, to the extent that the level of a specified interest rate exceeds a predetermined interest rate (i.e., the strike price), to receive payments of interest on a notional principal amount from the party selling such interest rate cap. The purchase of an interest rate floor entitles the purchaser, to the extent that the level of a specified interest rate falls below a predetermined interest rate (i.e., the strike price), to receive payments of interest on a notional principal amount from the party selling such interest rate floor.

For example, if the Fund holds a debt instrument with an interest rate that is reset only once each year, it may swap the right to receive interest at this fixed rate for the right to receive interest at a rate that is reset every week. This would enable the Fund to offset a decline in the value of the debt instrument due to rising interest rates but would also limit its ability to benefit from falling interest rates. Conversely, if the Fund holds a debt instrument with an interest rate that is reset every week and it would like to lock in what it believes to be a high interest rate for one year, it may swap the right to receive interest at this variable weekly rate for the right to receive interest at a rate that is fixed for one year. Such a swap would protect the Fund from a reduction in yield due to falling interest rates and may permit the Fund to enhance its income through the positive differential between one week and one year interest rates, but would preclude it from taking full advantage of rising interest rates.

The Fund may hedge both its assets and liabilities through interest rate swaps, caps and floors. Usually, payments with respect to interest rate swaps will be made on a net basis (i.e., the two payment streams are netted out) with the Fund receiving or paying, as the case may be, only the net amount of the two payments on the payment dates. If there is a default by the other party to an uncleared interest rate swap transaction, generally the Fund will have contractual remedies pursuant to the agreements related to the transaction. With respect to interest rate swap transactions cleared through a central clearing counterparty, a clearing organization will be substituted for the counterparty and will guaranty the parties’ performance under the swap agreement. However, there can be no assurance that the clearing organization will satisfy its obligation to the Fund or that the Fund would be able to recover the full amount of assets deposited on its behalf with the clearing organization in the event of the default by the clearing organization or the Fund’s clearing broker. Certain U.S. federal income tax requirements may limit the Fund’s ability to engage in interest rate swaps. Distributions attributable to transactions in interest rate swaps generally will be taxable as ordinary income to shareholders.

Repurchase Agreements. The Fund may enter into repurchase agreements. A repurchase agreement is a contractual agreement whereby the seller of securities agrees to repurchase the same security at a specified price on a future date agreed upon by the parties. The agreed upon repurchase price determines the yield during the Fund’s holding period. Repurchase agreements are considered to be loans collateralized by the underlying security that is the subject of the repurchase contract. Income generated from transactions in repurchase agreements will be taxable. The Fund will only enter into repurchase agreements with registered securities dealers or domestic banks that, in the opinion of the Advisors, present minimal credit risk. The risk to the Fund is limited to the ability of the issuer to pay the agreed upon repurchase price on the delivery date; however, although the value of the underlying collateral at the time the transaction is entered into always equals or exceeds the agreed upon repurchase price, if the value of the collateral declines there is a risk of loss of both principal and interest. In the event of default, the collateral may be sold but the Fund might incur a loss if the value of the collateral declines, and might incur disposition costs or experience delays in connection with liquidating the collateral. In addition, if bankruptcy proceedings are commenced with respect to the seller of the security, realization upon the collateral by the Fund may be delayed or limited. The Advisors will monitor the value of the collateral at the time the transaction is entered into and at all times subsequent during the term of the repurchase agreement in an effort to determine that such value always equals or exceeds the agreed upon repurchase price. In the event the value of the collateral declines below the repurchase price, the Advisors will demand additional collateral from the issuer to increase the value of the collateral to at least that of the repurchase price, including interest.

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Reverse Repurchase Agreements. The Fund may enter into reverse repurchase agreements with respect to its portfolio investments subject to the investment restrictions set forth herein. Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement by the Fund to repurchase the securities at an agreed upon price, date and interest payment.

In accordance with Rule 18f-4 under the Investment Company Act, when the Fund engages in reverse repurchase agreements and similar financing transactions, the Fund may either (i) maintain asset coverage of at least 300% with respect to such transactions and any other borrowings in the aggregate, or (ii) treat such transactions as “derivatives transactions” and comply with Rule 18f-4 with respect to such transactions. See “Additional Risk Factors—Risk Factors in Strategic Transactions and Derivatives—Rule 18f-4 Under the Investment Company Act” in the SAI.

Reverse repurchase agreements involve the risk that the market value of the securities acquired in connection with the reverse repurchase agreement may decline below the price of the securities the Fund has sold but is obligated to repurchase. Also, reverse repurchase agreements involve the risk that the market value of the securities retained in lieu of sale by the Fund in connection with the reverse repurchase agreement may decline in price.

If the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, such buyer or its trustee or receiver may receive an extension of time to determine whether to enforce the Fund’s obligation to repurchase the securities and the Fund’s use of the proceeds of the reverse repurchase agreement may effectively be restricted pending such decision. Also, the Fund would bear the risk of loss to the extent that the proceeds of the reverse repurchase agreement are less than the value of the securities subject to such agreement.

The Fund also may effect simultaneous purchase and sale transactions that are known as “sale-buybacks.” A sale-buyback is similar to a reverse repurchase agreement, except that in a sale-buyback, the counterparty that purchases the security is entitled to receive any principal or interest payments made on the underlying security pending settlement of the Fund’s repurchase of the underlying security.

Dollar Rolls. The Fund may enter into “dollar roll” transactions. In a dollar roll transaction, the Fund sells a mortgage related or other security to a dealer and simultaneously agrees to repurchase a similar security (but not the same security) in the future at a pre-determined price. A dollar roll transaction can be viewed, like a reverse repurchase agreement, as a collateralized borrowing in which the Fund pledges a mortgage related security to a dealer to obtain cash. However, unlike reverse repurchase agreements, the dealer with which the Fund enters into a dollar roll transaction is not obligated to return the same securities as those originally sold by the Fund, but rather only securities which are “substantially identical,” which generally means that the securities repurchased will bear the same interest rate and a similar maturity as those sold, but the pools of mortgages collateralizing those securities may have different prepayment histories than those sold.

During the period between the sale and repurchase, the Fund will not be entitled to receive interest and principal payments on the securities sold. Proceeds of the sale will be invested in additional instruments for the Fund and the income from these investments will generate income for the Fund. If such income does not exceed the income, capital appreciation and gain that would have been realized on the securities sold as part of the dollar roll, the use of this technique will diminish the investment performance of the Fund compared with what the performance would have been without the use of dollar rolls.

Rule 18f-4 under the Investment Company Act permits the Fund to enter into when-issued or forward-settling securities (e.g., dollar rolls and firm and standby commitments, including to-be-announced (“TBA”) commitments) and non-standard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the transaction meets the Delayed-Settlement Securities Provision (as defined below under “The Fund’s Investments—Portfolio Contents and Techniques—When-Issued Securities, Delayed Delivery Securities and Forward Commitment Securities”). If a when-issued, forward-settling or non-standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a derivatives transaction under Rule 18f-4. See “Additional Risk Factors—Risk Factors in Strategic Transactions and Derivatives—Rule 18f-4 Under the Investment Company Act” in the SAI.

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securities may be restricted. Successful use of mortgage dollar rolls may depend upon the investment manager’s ability to correctly predict interest rates and prepayments. There is no assurance that dollar rolls can be successfully employed.

Other Investment Companies. The Fund may invest in securities of other investment companies (including exchange-traded funds (“ETFs”), business development companies and money market funds, including other investment companies managed by the Advisor or its affiliates), subject to applicable regulatory limits, that invest primarily in securities of the types in which the Fund may invest directly. The Fund generally expects to invest in other investment companies either during periods when it has large amounts of uninvested cash, such as the period shortly after the Fund receives the proceeds of the offering of its common shares (or preferred shares, should the Fund determine to issue preferred shares in the future), or during periods when there is a shortage of attractive fixed income securities available in the market. As a shareholder in an investment company, the Fund will bear its ratable share of that investment company’s expenses and will remain subject to payment of the Fund’s advisory and other fees and expenses with respect to assets so invested. Holders of common shares will therefore be subject to duplicative expenses to the extent the Fund invests in other investment companies (except that it will not be subject to duplicate advisory fees with respect to other investment companies managed by the Advisor or its affiliates). The Advisors will take expenses into account when evaluating the investment merits of an investment in an investment company relative to available equity and/or fixed-income securities investments. In addition, the securities of other investment companies may be leveraged and will therefore be subject to the same leverage risks to which the Fund may be subject to the extent it employs a leverage strategy. As described in the sections entitled “Risks” and “Leverage,” the NAV and market value of leveraged shares will be more volatile and the yield to shareholders will tend to fluctuate more than the yield generated by unleveraged shares.

Investment companies may have investment policies that differ from those of the Fund. In addition, to the extent the Fund invests in other investment companies that are not managed by the Advisor or its affiliates, the Fund will be dependent upon the investment and research abilities of persons other than the Advisors.

The Fund may invest in ETFs, which are investment companies that typically aim to track or replicate a desired index, such as a sector, market or global segment. ETFs are typically passively managed and their shares are traded on a national exchange or The NASDAQ Stock Market, Inc. ETFs do not sell individual shares directly to investors and only issue their shares in large blocks known as “creation units.” The investor purchasing a creation unit may sell the individual shares on a secondary market. Therefore, the liquidity of ETFs depends on the adequacy of the secondary market. There can be no assurance that an ETF’s investment objective will be achieved, as ETFs based on an index may not replicate and maintain exactly the composition and relative weightings of securities in the index. ETFs are subject to the risks of investing in the underlying securities. The Fund, as a holder of the securities of the ETF, will bear its pro rata portion of the ETF’s expenses, including advisory fees (except that it will not be subject to duplicate advisory fees with respect to ETFs managed by the Advisor or its affiliates). These expenses are in addition to the direct expenses of the Fund’s own operations.

The Fund treats its investments in other investment companies that invest substantially all of their assets in fixed income securities as investments in fixed income securities.

Short-Term Debt Securities; Temporary Defensive Positions; Invest-Up Period. During temporary defensive periods (e.g., times when, in the Advisors’ opinion, temporary imbalances of supply and demand or other temporary dislocations in the market adversely affect the price at which fixed income securities are available, or in connection with the termination of the Fund) and in order to keep cash on hand fully invested, including the period during which the net proceeds of this offering of common shares (or preferred shares, should the Fund determine to issue preferred shares in the future) are being invested, the Fund may invest any percentage of its assets in liquid, short-term investments including high quality, short-term securities and securities of other open- or closed-end investment companies that invest primarily in securities of the type in which the Fund may invest directly. See “Investment Policies and Techniques—Cash Equivalents and Short-Term Debt Securities” in the SAI. The Advisors’ determination that they are temporarily unable to follow the Fund’s investment strategy or that it is impractical to do so will generally occur only in situations in which a market disruption event has occurred and where trading in the securities selected through application of the Fund’s investment strategy is extremely limited or absent or in connection with the termination of the Fund.

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Securities Lending. The Fund may lend portfolio securities to certain borrowers determined to be creditworthy by the Advisor, including to borrowers affiliated with the Advisor. The borrowers provide collateral that is maintained in an amount at least equal to the current market value of the securities loaned. No securities loan will be made on behalf of the Fund if, as a result, the aggregate value of all securities loans of the Fund exceeds one-third of the value of the Fund’s total assets (including the value of the collateral received). The Fund may terminate a loan at any time and obtain the return of the securities loaned. The Fund receives the value of any interest or cash or non-cash distributions paid on the loaned securities.

With respect to loans that are collateralized by cash, the borrower may be entitled to receive a fee based on the amount of cash collateral. The Fund is compensated by the difference between the amount earned on the reinvestment of cash collateral and the fee paid to the borrower. In the case of collateral other than cash, the Fund is compensated by a fee paid by the borrower equal to a percentage of the market value of the loaned securities. Any cash collateral received by the Fund for such loans, and uninvested cash, may be invested, among other things, in a private investment company managed by an affiliate of the Advisor or in registered money market funds advised by the Advisor or their affiliates; such investments are subject to investment risk.

The Fund conducts its securities lending pursuant to an exemptive order from the SEC permitting it to lend portfolio securities to borrowers affiliated with the Fund and to retain an affiliate of the Fund as lending agent. To the extent that the Fund engages in securities lending, BlackRock Investment Management, LLC (“BIM”), an affiliate of the Advisor, acts as securities lending agent for the Fund, subject to the overall supervision of the Advisor. BIM administers the lending program in accordance with guidelines approved by the Board.

To the extent the Fund engages in securities lending, the Fund retains a portion of securities lending income and remits a remaining portion to BIM as compensation for its services as securities lending agent. Securities lending income is equal to the total of income earned from the reinvestment of cash collateral (and excludes collateral investment expenses as defined below), and any fees or other payments to and from borrowers of securities. As securities lending agent, BIM bears all operational costs directly related to securities lending. The Fund is responsible for expenses in connection with the investment of cash collateral received for securities on loan (the “collateral investment expenses”). The cash collateral is invested in a private investment company managed by the Advisor or its affiliates. However, BIM has agreed to cap the collateral investment expenses of the private investment company to an annual rate of 0.04%. In addition, in accordance with the exemptive order, the investment adviser to the private investment company will not charge any advisory fees with respect to shares purchased by the Fund. Such shares also will not be subject to a sales load, distribution fee or service fee. If the private investment company’s weekly liquid assets fall below 30% of its total assets, BIM, as managing member of the private investment company, is permitted at any time, if it determines it to be in the best interests of the private investment company, to impose a liquidity fee of up to 2% of the value of units withdrawn or impose a redemption gate that temporarily suspends the right of withdrawal out of the private investment company. In addition, if the private investment company’s weekly liquid assets fall below 10% of its total assets at the end of any business day, the private investment company will impose a liquidity fee in the default amount of 1% of the amount withdrawn, generally effective as of the next business day, unless BIM determines that a higher (not to exceed 2%) or lower fee level or not imposing a liquidity fee is in the best interests of the private investment company. The shares of the private investment company purchased by the Fund would be subject to any such liquidity fee or redemption gate imposed.

Under the securities lending program, the Fund is categorized into a specific asset class. The determination of the Fund’s asset class category (fixed income, domestic equity, international equity, or fund of funds), each of which may be subject to a different fee arrangement, is based on a methodology agreed to between the Fund and BIM.

Pursuant to the current securities lending agreement: (i) if the Fund were to engage in securities lending, the Fund retains 82% of securities lending income (which excludes collateral investment expenses), and (ii) this amount can never be less than 70% of the sum of securities lending income plus collateral investment expenses.

In addition, commencing the business day following the date that the aggregate securities lending income earned across the BlackRock Fixed-Income Complex in a calendar year exceeds a specified threshold, the Fund, pursuant to the current securities lending agreement, will receive for the remainder of that calendar year securities lending income as follows: (i) if the Fund were to engage in securities lending, 85% of securities lending income (which

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excludes collateral investment expenses); and (ii) this amount can never be less than 70% of the sum of securities lending income plus collateral investment expenses.

Short Sales. The Fund may make short sales of securities. A short sale is a transaction in which the Fund sells a security it does not own in anticipation that the market price of that security will decline. The Fund may make short sales to hedge positions, for duration and risk management, in order to maintain portfolio flexibility or to enhance income or gain.

When the Fund makes a short sale, it must borrow the security sold short and deliver it to the broker-dealer through which it made the short sale as collateral for its obligation to deliver the security upon conclusion of the sale. The Fund may have to pay a fee to borrow particular securities and is often obligated to pay over any payments received on such borrowed securities.

The Fund’s obligation to replace the borrowed security will be secured by collateral deposited with the broker-dealer, usually cash, U.S. Government securities or other liquid securities. Depending on arrangements made with the broker-dealer from which it borrowed the security regarding payment over of any payments received by the Fund on such security, the Fund may not receive any payments (including interest) on its collateral deposited with such broker-dealer.

If the price of the security sold short increases between the time of the short sale and the time the Fund replaces the borrowed security, the Fund will incur a loss; conversely, if the price declines, the Fund will realize a gain. Any gain will be decreased, and any loss increased, by the transaction costs described above. Although the Fund’s gain is limited to the price at which it sold the security short, its potential loss is theoretically unlimited. The Fund will not make a short sale if, after giving effect to such sale, the market value of all securities sold short exceeds 25% of the value of its Managed Assets or the Fund’s aggregate short sales of a particular class of securities exceeds 25% of the outstanding securities of that class.

The Fund may also make short sales “against the box” without respect to such limitations. In this type of short sale, at the time of the sale, the Fund owns or has the immediate and unconditional right to acquire at no additional cost the identical security.

The Fund must comply with Rule 18f-4 under the Investment Company Act with respect to its short sale borrowings, which are considered derivatives transactions under the Rule. See “Additional Risk Factors—Risk Factors in Strategic Transactions and Derivatives—Rule 18f-4 Under the Investment Company Act” in the SAI.

When-Issued, Delayed Delivery Securities and Forward Commitment Securities. The Fund may purchase securities on a “when-issued” basis and may purchase or sell securities on a “forward commitment” basis (including on a “TBA” (to be announced) basis) or on a “delayed delivery” basis. When such transactions are negotiated, the price, which is generally expressed in yield terms, is fixed at the time the commitment is made, but delivery and payment for the securities take place at a later date. When-issued securities and forward commitments may be sold prior to the settlement date. If the Fund disposes of the right to acquire a when-issued security prior to its acquisition or disposes of its right to deliver or receive against a forward commitment, it might incur a gain or loss. Pursuant to recommendations of the Treasury Market Practices Group, which is sponsored by the Federal Reserve Board of New York, the Fund or its counterparty generally is required to post collateral when entering into certain forward-settling transactions, including without limitation TBA transactions.

There is always a risk that the securities may not be delivered and that the Fund may incur a loss. A default by a counterparty may result in the Fund missing the opportunity of obtaining a price considered to be advantageous. The value of securities in these transactions on the delivery date may be more or less than the Fund’s purchase price. The Fund may bear the risk of a decline in the value of the security in these transactions and may not benefit from an appreciation in the value of the security during the commitment period. Settlements in the ordinary course are not treated by the Fund as when-issued or forward commitment transactions and accordingly are not subject to the foregoing restrictions.

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The market value of the securities underlying a commitment to purchase securities, and any subsequent fluctuations in their market value, is taken into account when determining the NAV of the Fund starting on the day the Fund agrees to purchase the securities. The Fund does not earn interest on the securities it has committed to purchase until they are paid for and delivered on the settlement date.

Rule 18f-4 under the Investment Company Act permits the Fund to enter into when-issued or forward-settling securities (e.g., firm and standby commitments, including TBA commitments, and dollar rolls) and non-standard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the Fund intends to physically settle the transaction and the transaction will settle within 35 days of its trade date (the “Delayed-Settlement Securities Provision”). If a when-issued, forward-settling or non-standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a derivatives transaction under Rule 18f-4. See “Additional Risk Factors—Risk Factors in Strategic Transactions and Derivatives—Rule 18f-4 Under the Investment Company Act” in the SAI.

LEVERAGE

The Fund currently leverages its assets through the use of reverse repurchase agreements. The Fund currently does not intend to borrow money or issue debt securities or preferred shares. Although it has no present intention to do so, the Fund reserves the right to borrow money from banks or other financial institutions, or issue debt securities or preferred shares, in the future if it believes that market conditions would be conducive to the successful implementation of a leveraging strategy through borrowing money or issuing debt securities or preferred shares. The Fund is permitted to borrow money from banks or otherwise in an amount up to 33 1/3% of its Managed Assets (50% of its net assets). “Managed Assets” means the total assets of the Fund (including any assets attributable to money borrowed for investment purposes) minus the sum of the Fund’s accrued liabilities (other than money borrowed for investment purposes).

The use of leverage, if employed, can create risks. When leverage is employed, the NAV and market price of the common shares and the yield to holders of common shares will be more volatile than if leverage were not used. Changes in the value of the Fund’s portfolio, including securities bought with the proceeds of leverage, will be borne entirely by the holders of common shares. If there is a net decrease or increase in the value of the Fund’s investment portfolio, leverage will decrease or increase, as the case may be, the NAV per common share to a greater extent than if the Fund did not utilize leverage. A reduction in the Fund’s NAV may cause a reduction in the market price of its shares. A failure to pay dividends or make distributions due to leverage could result in the Fund ceasing to qualify as a regulated investment company (“RIC”) under the Code. Any leveraging strategy the Fund employs may not be successful. See “Risks—Leverage Risk.”

Certain types of leverage the Fund may use may result in the Fund being subject to covenants relating to asset coverage and portfolio composition requirements. The Fund may be subject to certain restrictions on investments imposed by one or more lenders or by guidelines of one or more rating agencies, which may issue ratings for any short-term debt securities or preferred shares issued by the Fund. The terms of any borrowings or rating agency guidelines may impose asset coverage or portfolio composition requirements that are more stringent than those imposed by the Investment Company Act. The Advisor does not believe that these covenants or guidelines will impede it from managing the Fund’s portfolio in accordance with its investment objective and policies if the Fund were to utilize leverage.

Under the Investment Company Act, the Fund is not permitted to issue senior securities if, immediately after the issuance of such senior securities, the Fund would have an asset coverage ratio (as defined in the Investment Company Act) of less than 300% with respect to senior securities representing indebtedness (i.e., for every dollar of indebtedness outstanding, the Fund is required to have at least three dollars of assets) or less than 200% with respect to senior securities representing preferred shares (i.e., for every dollar of preferred shares outstanding, the Fund is required to have at least two dollars of assets). The Investment Company Act also provides that the Fund may not declare distributions or purchase its stock (including through tender offers) if, immediately after doing so, it will have an asset coverage ratio of less than 300% or 200%, as applicable. Under the Investment Company Act, certain short-term borrowings (such as for cash management purposes) are not subject to these limitations if (i) repaid within 60 days, (ii) not extended or renewed and (iii) not in excess of 5% of the total assets of the Fund.

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Effects of Leverage

Assuming that leverage will represent approximately [●]% of the Fund’s Managed Assets and that the Fund will bear expenses relating to that leverage at an average annual rate of [●]%, the income generated by the Fund’s portfolio (net of estimated expenses) must exceed [●]% in order to cover the expenses specifically related to the Fund’s use of leverage. Of course, these numbers are merely estimates used for illustration. Actual leverage expenses will vary frequently and may be significantly higher or lower than the rate estimated above.

The following table is furnished in response to requirements of the SEC. It is designed to illustrate the effect of leverage on common share total return, assuming investment portfolio total returns (comprised of income and changes in the value of investments held in the Fund’s portfolio) of (10)%, (5)%, 0%, 5% and 10%. These assumed investment portfolio returns are hypothetical figures and are not necessarily indicative of the investment portfolio returns experienced or expected to be experienced by the Fund. The table further reflects the use of leverage representing [●]% of the Fund’s Managed Assets and an assumed annual cost of leverage of [●]%.


Assumed Portfolio Total Return (Net of Expenses)	(10.00)%	(5.00)%	0%	5.00%	10.00%
Common Share Total Return	([●])%	([●])%	([●])%	[●]%	[●]%

Common share total return is composed of two elements: the common share dividends paid by the Fund (the amount of which is largely determined by the net investment income of the Fund after paying for any leverage used by the Fund) and gains or losses on the value of the securities the Fund owns. As required by SEC rules, the table assumes that the Fund is more likely to suffer capital losses than to enjoy capital appreciation. For example, to assume a total return of 0% the Fund must assume that the interest it receives on its investments is entirely offset by losses in the value of those securities.

Reverse Repurchase Agreements

Borrowings may be made by the Fund through reverse repurchase agreements under which the Fund sells portfolio securities to financial institutions, such as banks and broker-dealers, and agrees to repurchase them at an agreed upon date and price. Such agreements are considered to be borrowings under the Investment Company Act. The Fund may utilize reverse repurchase agreements when it is anticipated that the interest income to be earned from the investment of the proceeds of the transaction is greater than the interest expense of the transaction.

Credit Facility

The Fund may borrow through a credit facility. If the Fund enters into a credit facility, the Fund may be required to prepay outstanding amounts or incur a penalty rate of interest upon the occurrence of certain events of default. The Fund would also likely have to indemnify the lenders under the credit facility against liabilities they may incur in connection therewith. In addition, the Fund expects that any credit facility would contain covenants that, among other things, likely would limit the Fund’s ability to pay distributions in certain circumstances, incur additional debt, change certain of its investment policies and engage in certain transactions, including mergers and consolidations, and require asset coverage ratios in addition to those required by the Investment Company Act. The Fund may be required to pledge its assets and to maintain a portion of its assets in cash or high-grade securities as a reserve against interest or principal payments and expenses. The Fund expects that any credit facility would have customary covenant, negative covenant and default provisions. There can be no assurance that the Fund will enter into an agreement for a credit facility, or one on terms and conditions representative of the foregoing, or that additional material terms will not apply. In addition, if entered into, a credit facility may in the future be replaced or refinanced by one or more credit facilities having substantially different terms or by the issuance of preferred shares.

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Preferred Shares

The Fund is permitted under the Investment Company Act to leverage its portfolio by issuing preferred shares. Under the Investment Company Act, the Fund is not permitted to issue preferred shares if, immediately after such issuance, the liquidation value of the Fund’s outstanding preferred shares exceeds 50% of its assets (including the proceeds from the issuance) less liabilities other than borrowings (i.e., the value of the Fund’s assets must be at least 200% of the liquidation value of its outstanding preferred shares). In addition, the Fund would not be permitted to declare any cash dividend or other distribution on its common shares unless, at the time of such declaration, the value of the Fund’s assets less liabilities other than borrowings is at least 200% of such liquidation value.

The Fund expects that preferred shares, if issued, will pay adjustable rate dividends based on shorter-term interest rates, which would be redetermined periodically by a fixed spread or remarketing process, subject to a maximum rate which would increase over time in the event of an extended period of unsuccessful remarketing. The adjustment period for preferred share dividends could be as short as one day or as long as a year or more. Preferred shares, if issued, could include a liquidity feature that allows holders of preferred shares to have their shares purchased by a liquidity provider in the event that sell orders have not been matched with purchase orders and successfully settled in a remarketing. The Fund expects that it would pay a fee to the provider of this liquidity feature, which would be borne by common shareholders of the Fund. The terms of such liquidity feature could require the Fund to redeem preferred shares still owned by the liquidity provider following a certain period of continuous, unsuccessful remarketing, which may adversely impact the Fund.

If preferred shares are issued, the Fund may, to the extent possible, purchase or redeem preferred shares from time to time to the extent necessary in order to maintain asset coverage of any preferred shares of at least 200%. In addition, as a condition to obtaining ratings on the preferred shares, the terms of any preferred shares issued are expected to include asset coverage maintenance provisions which will require the redemption of the preferred shares in the event of non-compliance by the Fund and may also prohibit dividends and other distributions on the common shares in such circumstances. In order to meet redemption requirements, the Fund may have to liquidate portfolio securities. Such liquidations and redemptions would cause the Fund to incur related transaction costs and could result in capital losses to the Fund. Prohibitions on dividends and other distributions on the common shares could impair the Fund’s ability to qualify as a RIC under the Code. If the Fund has preferred shares outstanding, two of the Directors will be elected by the holders of preferred shares voting separately as a class. The remaining Directors will be elected by holders of common shares and preferred shares voting together as a single class. In the event the Fund failed to pay dividends on preferred shares for two years, holders of preferred shares would be entitled to elect a majority of the Directors.

If the Fund issues preferred shares, the Fund expects that it will be subject to certain restrictions imposed by guidelines of one or more rating agencies that may issue ratings for preferred shares issued by the Fund. These guidelines are expected to impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the Investment Company Act. It is not anticipated that these covenants or guidelines would impede the Advisors from managing the Fund’s portfolio in accordance with the Fund’s investment objective and policies.

Derivatives

The Fund may enter into derivative transactions that have leverage embedded in them. Derivative transactions that the Fund may enter into and the risks associated with them are described elsewhere in this Prospectus and are also referred to as “Strategic Transactions.” The Fund cannot assure you that investments in derivative transactions that have leverage embedded in them will result in a higher return on its common shares.

Under Rule 18f-4 under the Investment Company Act, among other things, the Fund must either use derivatives in a limited manner or comply with an outer limit on fund leverage risk based on value at risk. See “Additional Risk Factors—Risk Factors in Strategic Transactions and Derivatives—Rule 18f-4 Under the Investment Company Act” in the SAI.

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Temporary Borrowings

The Fund may also borrow money as a temporary measure for extraordinary or emergency purposes, including the payment of dividends and the settlement of securities transactions which otherwise might require untimely dispositions of Fund securities.

RISKS

The NAV and market price of, and dividends paid on, the common shares will fluctuate with and be affected by, among other things, the risks of investing in the Fund.

General Risks

Please refer to the section of the Fund’s most recent annual report on Form N-CSR entitled “Investment Objectives, Policies and Risks—Risk Factors”, which is incorporated by reference herein, for a discussion of the general risks of investing in the Fund.

Other Risks

When-Issued, Forward Commitment and Delayed Delivery Transactions Risk

The Fund may purchase securities on a when-issued basis (including on a forward commitment or “TBA” (to be announced) basis) and may purchase or sell securities for delayed delivery. When-issued and delayed delivery transactions occur when securities are purchased or sold by the Fund with payment and delivery taking place in the future to secure an advantageous yield or price. Securities purchased on a when-issued or delayed delivery basis may expose the Fund to counterparty risk of default as well as the risk that securities may experience fluctuations in value prior to their actual delivery. The Fund will not accrue income with respect to a when-issued or delayed delivery security prior to its stated delivery date. Purchasing securities on a when-issued or delayed delivery basis can involve the additional risk that the price or yield available in the market when the delivery takes place may not be as favorable as that obtained in the transaction itself.

Collateralized Debt Obligations Risk

In addition to the typical risks associated with fixed-income securities and asset-backed securities, collateralized debt obligations (“CDOs”), including collateralized loan obligations (“CLOs”), carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization; (iii) the Fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by the Fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) the risk of forced “fire sale” liquidation due to technical defaults such as coverage test failures; and (viii) the CDO’s manager may perform poorly.

Dollar Roll Transactions Risk

Dollar roll transactions involve the risk that the market value of the securities the Fund is required to purchase may decline below the agreed upon repurchase price of those securities. If the broker/dealer to which the Fund sells securities becomes insolvent, the Fund’s right to purchase or repurchase securities may be restricted. Successful use of dollar rolls may depend upon the Advisor’s ability to predict correctly interest rates and prepayments. There is no assurance that dollar rolls can be successfully employed. These transactions may involve leverage.

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Short Sales Risk

Short-selling involves selling securities which may or may not be owned and borrowing the same securities for delivery to the purchaser, with an obligation to replace the borrowed securities at a later date. If the price of the security sold short increases between the time of the short sale and the time the Fund replaces the borrowed security, the Fund will incur a loss; conversely, if the price declines, the Fund will realize a capital gain. Any gain will be decreased, and any loss will be increased, by the transaction costs incurred by the Fund, including the costs associated with providing collateral to the broker-dealer (usually cash and liquid securities) and the maintenance of collateral with its custodian. Although the Fund’s gain is limited to the price at which it sold the security short, its potential loss is theoretically unlimited.

Short-selling necessarily involves certain additional risks. However, if the short seller does not own the securities sold short (an uncovered short sale), the borrowed securities must be replaced by securities purchased at market prices in order to close out the short position, and any appreciation in the price of the borrowed securities would result in a loss. Uncovered short sales expose the Fund to the risk of uncapped losses until a position can be closed out due to the lack of an upper limit on the price to which a security may rise. Purchasing securities to close out the short position can itself cause the price of the securities to rise further, thereby exacerbating the loss. There is the risk that the securities borrowed by the Fund in connection with a short-sale must be returned to the securities lender on short notice. If a request for return of borrowed securities occurs at a time when other short-sellers of the security are receiving similar requests, a “short squeeze” can occur, and the Fund may be compelled to replace borrowed securities previously sold short with purchases on the open market at the most disadvantageous time, possibly at prices significantly in excess of the proceeds received at the time the securities were originally sold short.

Investment Companies and ETFs Risk

Subject to the limitations set forth in the Investment Company Act and the rules thereunder, the Fund may acquire shares in other investment companies and in ETFs and business development companies (“BDCs”), some of which may be affiliated investment companies. The market value of the shares of other investment companies and ETFs may differ from their NAV. As an investor in investment companies, including ETFs and BDCs, the Fund would bear its ratable share of that entity’s expenses, including its investment advisory and administration fees, while continuing to pay its own advisory and administration fees and other expenses (to the extent not offset by the Advisor through waivers). As a result, shareholders will be absorbing duplicate levels of fees with respect to investments in other investment companies, including ETFs and BDCs (to the extent not offset by the Advisor through waivers).

The securities of other investment companies, including ETFs and BDCs, in which the Fund may invest may be leveraged. As a result, the Fund may be indirectly exposed to leverage through an investment in such securities. An investment in securities of other investment companies, including ETFs and BDCs, that use leverage may expose the Fund to higher volatility in the market value of such securities and the possibility that the Fund’s long-term returns on such securities (and, indirectly, the long-term returns of shares of the Fund) will be diminished.

The portfolios of ETFs are generally not actively managed and may be affected by a general decline in market segments relating to its index. An ETF typically invests in securities included in, or representative of, its index regardless of their investment merits and does not attempt to take defensive positions in declining markets.

Securities Lending Risk

Securities lending involves exposure to certain risks, including operational risk (i.e., the risk of losses resulting from problems in the settlement and accounting process), “gap” risk (i.e., the risk of a mismatch between the return on cash collateral reinvestments and the fees the Fund has agreed to pay a borrower), foreign exchange risk (i.e., the risk of a shortfall at default when a cash collateral investment is denominated in a currency other than the currency of the assets being loaned due to movements in foreign exchange rates), and credit, legal, counterparty and market risks (including the risk that market events, including but not limited to corporate actions, could lead the Fund to lend securities that are trading at a premium due to increased demand, or to recall loaned securities or to lend less or not at all, which could lead to reduced securities lending revenue). If the Fund were to lend out securities that are subject to a corporate action and commit to the borrower a particular election as determined by the Advisor, the

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benefit the Fund would receive in respect of committing to such election may or may not be less than the benefit the Fund would have received from making a different election in such corporate action. If a securities lending counterparty were to default, the Fund would be subject to the risk of a possible delay in receiving collateral or in recovering the loaned securities, or to a possible loss of rights in the collateral. In the event a borrower does not return the Fund’s securities as agreed, the Fund’s ability to participate in a corporate action event may be impacted, or the Fund may experience losses if the proceeds received from liquidating the collateral do not at least equal the value of the loaned security at the time the collateral is liquidated, plus the transaction costs incurred in purchasing replacement securities. This latter event could trigger adverse tax consequences for the Fund. The Fund could lose money if its short-term investment of the collateral declines in value over the period of the loan. Substitute payments received by the Fund representing dividends paid on securities loaned out by the Fund will not be considered qualified dividend income, and distributions by the Fund of such substitute payments will not constitute qualified dividend income. Additionally, substitute payments received by the Fund representing qualified REIT dividends paid on REIT securities loaned out by the Fund will not be considered qualified REIT dividends, and distributions by the Fund of such substitute payments will not be eligible for a 20% deduction currently available for ordinary REIT dividends paid to non-corporate shareholders provided certain other requirements are satisfied. The securities lending agent will take into account the tax effects on shareholders caused by these differences in connection with the Fund’s securities lending program. Substitute payments received on tax-exempt securities loaned out will not be tax-exempt income. There could also be changes in the status of issuers under applicable laws and regulations, including tax regulations, that may impact the regulatory or tax treatment of loaned securities and could, for example, result in a delay in the payment of dividend equivalent payments owed to the Fund (as permitted by applicable law).

Regulations adopted by global prudential regulators require certain bank-regulated counterparties and certain of their affiliates to include in certain financial contracts, including many securities lending agreements, terms that delay or restrict the rights of counterparties, such as the Fund, to terminate such agreements, foreclose upon collateral, exercise other default rights or restrict transfers of credit support in the event that the counterparty and/or its affiliates are subject to certain types of resolution or insolvency proceedings. It is possible that these requirements, as well as potential additional government regulation and other developments in the market, could adversely affect the Fund’s ability to terminate existing securities lending agreements or to realize amounts to be received under such agreements. Prudential regulation may also favor lenders that can provide additional protections, such as liens that are exercisable upon lender default, to bank borrowers. The Fund may provide additional protections to bank borrowers, where permitted pursuant to the Fund’s investment policies and if the Advisor believes doing so is in the best interest of the Fund.

Swaps Risk

Swaps are a type of derivative. Swap agreements involve the risk that the party with which the Fund has entered into the swap will default on its obligation to pay the Fund and the risk that the Fund will not be able to meet its obligations to pay the other party to the agreement. In order to seek to hedge the value of the Fund’s portfolio, to hedge against increases in the Fund’s cost associated with interest payments on any outstanding borrowings or to seek to increase the Fund’s return, the Fund may enter into swaps, including interest rate swap, total return swap (sometimes referred to as a “contract for difference”) and/or credit default swap transactions. In interest rate swap transactions, there is a risk that yields will move in the direction opposite of the direction anticipated by the Fund, which would cause the Fund to make payments to its counterparty in the transaction that could adversely affect Fund performance. In addition to the risks applicable to swaps generally (including counterparty risk, high volatility, illiquidity risk and credit risk), credit default swap transactions involve special risks because they are difficult to value, are highly susceptible to liquidity and credit risk, and generally pay a return to the party that has paid the premium only in the event of an actual default by the issuer of the underlying obligation (as opposed to a credit downgrade or other indication of financial difficulty).

The United States, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the “Dodd-Frank Act”), requires that certain derivatives with U.S. persons must be executed on a regulated market and a substantial portion of OTC derivatives must be submitted for clearing to regulated clearinghouses. As a result, swap transactions entered into by the Fund may become subject to various requirements applicable to swaps under the Dodd-Frank Act, including clearing, exchange-execution, reporting and recordkeeping requirements, which may make it more difficult and costly for the Fund to enter into swap transactions and may also render certain strategies

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in which the Fund might otherwise engage impossible or so costly that they will no longer be economical to implement. Furthermore, the number of counterparties that may be willing to enter into swap transactions with the Fund may also be limited if the swap transactions with the Fund are subject to the swap regulation under the Dodd-Frank Act.

Credit default and total return swap agreements may effectively add leverage to the Fund’s portfolio because, in addition to its Managed Assets, the Fund would be subject to investment exposure on the notional amount of the swap in excess of any premium and margin required to establish and maintain the position. Total return swap agreements are subject to market risk as well as the risk that a counterparty will default on its payment obligations to the Fund thereunder. The Fund is not required to enter into swap transactions for hedging purposes or to enhance income or gain and may choose not to do so. In addition, the swaps market is subject to a changing regulatory environment. It is possible that regulatory or other developments in the swaps market could adversely affect the Fund’s ability to successfully use swaps.

Inflation Risk

Inflation risk is the risk that the value of assets or income from investment will be worth less in the future, as inflation decreases the value of money. Inflation rates may change frequently and drastically as a result of various factors, including unexpected shifts in the domestic or global economy. As inflation increases, the real value of the common shares and distributions on those shares can decline. In addition, during any periods of rising inflation, interest rates on any borrowings by the Fund would likely increase, which would tend to further reduce returns to the holders of common shares.

Deflation Risk

Deflation risk is the risk that prices throughout the economy decline over time, which may have an adverse effect on the market valuation of companies, their assets and their revenues. In addition, deflation may have an adverse effect on the creditworthiness of issuers and may make issuer default more likely, which may result in a decline in the value of the Fund’s portfolio.

Risk Associated with Recent Market Events

Although interest rates were unusually low in recent years in the U.S. and abroad, in 2022, the Federal Reserve and certain foreign central banks raised interest rates as part of their efforts to address rising inflation. The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or other foreign central banks to change their approach in the future and such actions may result in an economic slowdown both in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets, which could negatively affect the value of debt instruments held by the Fund and result in a negative impact on the Fund’s performance. See “—Inflation Risk.”

Political and diplomatic events within the United States, including a contentious domestic political environment, changes in political party control of one or more branches of the U.S. Government, the U.S. Government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat of a U.S. Government shutdown, and disagreements over, or threats not to increase, the U.S. Government’s borrowing limit (or “debt ceiling”), as well as political and diplomatic events abroad, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree. A downgrade of the ratings of U.S. Government debt obligations, or concerns about the U.S. Government’s credit quality in general, could have a substantial negative effect on the U.S. and global economies. For example, concerns about the U.S. Government’s credit quality may cause increased volatility in the stock and bond markets, higher interest rates, reduced prices and liquidity of U.S. Treasury securities, and/or increased costs of various kinds of debt. Moreover,

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although the U.S. Government has honored its credit obligations, there remains a possibility that the United States could default on its obligations. The consequences of such an unprecedented event are impossible to predict, but it is likely that a default by the United States would be highly disruptive to the U.S. and global securities markets and could significantly impair the value of the Fund’s investments.

In recent years, some countries, including the United States, have adopted more protectionist trade policies. Slowing global economic growth, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade agreements, risks associated with the trade agreements between countries and regions, including the U.S. and other foreign nations, political or economic dysfunction within some countries or regions, including the U.S., and dramatic changes in commodity and currency prices could affect the economies of many nations in ways that cannot necessarily be foreseen at the present time. In addition, if the U.S. dollar continues to be strong, it may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.

Reference Rate Replacement Risk

The Fund may be exposed to financial instruments that recently transitioned from, or continue to be tied to, the London Interbank Offered Rate (“LIBOR”) to determine payment obligations, financing terms, hedging strategies or investment value.

The United Kingdom’s Financial Conduct Authority (“FCA”), which regulates LIBOR, has ceased publishing all LIBOR settings. In April 2023, however, the FCA announced that some USD LIBOR settings would continue to be published under a synthetic methodology until September 30, 2024 for certain legacy contracts. After September 30, 2024, the remaining synthetic LIBOR settings ceased to be published, and all LIBOR settings have permanently ceased. The Secured Overnight Financing Rate (“SOFR”) is a broad measure of the cost of borrowing cash overnight collateralized by U.S. Treasury securities in the repurchase agreement (“repo”) market and has been used increasingly on a voluntary basis in new instruments and transactions. Under U.S. regulations that implement a statutory fallback mechanism to replace LIBOR, benchmark rates based on SOFR have replaced LIBOR in certain financial contracts.

Neither the effect of the LIBOR transition process nor its ultimate success can yet be known. While some existing LIBOR-based instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate-setting methodology, there may be significant uncertainty regarding the effectiveness of any such alternative methodologies to replicate LIBOR. Not all existing LIBOR-based instruments may have alternative rate-setting provisions and there remains uncertainty regarding the willingness and ability of issuers to add alternative rate-setting provisions in certain existing instruments. Parties to contracts, securities or other instruments using LIBOR may disagree on transition rates or the application of transition regulation, potentially resulting in uncertainty of performance and the possibility of litigation. The Fund may have instruments linked to other interbank offered rates that may also cease to be published in the future.

Market Disruption and Geopolitical Risk

The occurrence of events similar to those in recent years, such as the aftermath of the war in Iraq, instability in Afghanistan, Pakistan, Egypt, Libya, Syria and the Middle East, international war or conflict (including the Israel-Hamas war), new and ongoing epidemics and pandemics of infectious diseases and other global health events, natural/environmental disasters, terrorist attacks in the United States and around the world, social and political discord, debt crises (such as the Greek crisis), sovereign debt downgrades, the Russian invasion of Ukraine, increasingly strained relations between the United States and a number of foreign countries, including historical adversaries, such as North Korea, Iran, China and Russia, and the international community generally, new and continued political unrest in various countries, such as Venezuela and Spain, the exit or potential exit of one or more countries from the EU or the EMU, and continued changes in the balance of political power among and within the branches of the U.S. Government, among others, may result in market volatility, may have long term effects on the U.S. and worldwide financial markets, and may cause further economic uncertainties in the United States and worldwide.

Russia launched a large-scale invasion of Ukraine on February 24, 2022. The extent and duration of the military action, resulting sanctions and resulting future market disruptions, including declines in its stock markets and the

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value of the ruble against the U.S. dollar, in the region are impossible to predict, but could be significant. Any such disruptions caused by Russian military action or other actions (including cyberattacks and espionage) or resulting actual and threatened responses to such activity, including purchasing and financing restrictions, boycotts or changes in consumer or purchaser preferences, sanctions, tariffs or cyberattacks on the Russian government, Russian companies or Russian individuals, including politicians, could have a severe adverse effect on Russia and the European region, including significant negative impacts on the Russian economy, the European economy and the markets for certain securities and commodities, such as oil and natural gas, and may likely have collateral impacts on such sectors globally as well as other sectors. How long such military action and related events will last cannot be predicted.

Trade tensions between the United States and China have led to concerns about economic stability and could have an adverse impact on global economic conditions. The United States and China have each been implementing increased tariffs on imports from the other, and the United States has also adopted certain targeted measures such as export controls or sanctions implicating Chinese companies and officials. While certain trade agreements have been agreed between the two countries, there remains much uncertainty as to whether the trade negotiations between the United States and China will be successful and how the trade war between the United States and China will progress. Uncertainty regarding the outcome of the trade tensions and the potential for a trade war could cause the U.S. dollar to decline against safe haven currencies, such as the Japanese yen and the Euro. Events such as these and their consequences are difficult to predict and it is unclear whether further tariffs may be imposed or other escalating actions may be taken in the future. If the trade war between the United States and China continues or escalates, or if additional tariffs or trade restrictions are implemented by the United States, China or other countries in connection with a global trade war, there could be material adverse effects on the global economy, and the Fund and its portfolio investments could be materially and adversely affected.

On January 31, 2020, the United Kingdom officially left the European Union (Brexit), subject to a transitional period that ended December 31, 2020. The United Kingdom and European Union have reached an agreement on the terms of their future trading relationship effective January 1, 2021, which principally relates to the trading of goods rather than services, including financial services. Further discussions are to be held between the United Kingdom and the European Union in relation to matters not covered by the trade agreement, such as financial services. The Fund faces risks associated with the potential uncertainty and consequences that may follow Brexit, including with respect to volatility in exchange rates and interest rates. Brexit could adversely affect European or worldwide political, regulatory, economic or market conditions and could contribute to instability in global political institutions, regulatory agencies and financial markets. Brexit has also led to legal uncertainty and could lead to politically divergent national laws and regulations as a new relationship between the United Kingdom and European Union is defined and the United Kingdom determines which European Union laws to replace or replicate. Any of these effects of Brexit could adversely affect any of the companies to which the Fund has exposure and any other assets that the Fund invests in. The political, economic and legal consequences of Brexit are not yet known. In the short term, financial markets may experience heightened volatility, particularly those in the United Kingdom and Europe, but possibly worldwide. The United Kingdom and Europe may be less stable than they have been in recent years, and investments in the United Kingdom and the European Union may be difficult to value or subject to greater or more frequent volatility. In the longer term, there is likely to be a period of significant political, regulatory and commercial uncertainty as the United Kingdom continues to negotiate the terms of its future trading relationship with the European Union.

Cybersecurity incidents affecting particular companies or industries may adversely affect the economies of particular countries, regions or parts of the world in which the Fund invests.

The occurrence of any of these above events could have a significant adverse impact on the value and risk profile of the Fund’s portfolio. The Fund does not know how long the securities markets may be affected by similar events and cannot predict the effects of similar events in the future on the U.S. economy and securities markets. There can be no assurance that similar events and other market disruptions will not have other material and adverse implications.

Regulation and Government Intervention Risk

Federal, state, and other governments, their regulatory agencies or self-regulatory organizations may take actions that affect the regulation of the issuers in which the Fund invests in ways that are unforeseeable. Legislation or

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regulation may also change the way in which the Fund is regulated. Such legislation or regulation could limit or preclude the Fund’s ability to achieve its investment objective.

In light of popular, political and judicial focus on finance related consumer protection, financial institution practices are also subject to greater scrutiny and criticism generally. In the case of transactions between financial institutions and the general public, there may be a greater tendency toward strict interpretation of terms and legal rights in favor of the consuming public, particularly where there is a real or perceived disparity in risk allocation and/or where consumers are perceived as not having had an opportunity to exercise informed consent to the transaction. In the event of conflicting interests between retail investors holding common shares of a closed-end investment company such as the Fund and a large financial institution, a court may similarly seek to strictly interpret terms and legal rights in favor of retail investors.

The Fund may be affected by governmental action in ways that are not foreseeable, and there is a possibility that such actions could have a significant adverse effect on the Fund and its ability to achieve its investment objective.

Investment Company Act Regulations

The Fund is a registered closed-end management investment company and as such is subject to regulations under the Investment Company Act. Generally speaking, any contract or provision thereof that is made, or where performance involves a violation of the Investment Company Act or any rule or regulation thereunder is unenforceable by either party unless a court finds otherwise.

Regulation as a “Commodity Pool”

The CFTC subjects advisers to registered investment companies to regulation by the CFTC if a fund that is advised by the investment adviser either (i) invests, directly or indirectly, more than a prescribed level of its liquidation value in CFTC-regulated futures, options and swaps (“CFTC Derivatives”), or (ii) markets itself as providing investment exposure to such instruments. To the extent the Fund uses CFTC Derivatives, it intends to do so below such prescribed levels and will not market itself as a “commodity pool” or a vehicle for trading such instruments. Accordingly, the Advisor has claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act (“CEA”) pursuant to Rule 4.5 under the CEA. The Advisor is not, therefore, subject to registration or regulation as a “commodity pool operator” under the CEA in respect of the Fund.

Failures of Futures Commission Merchants and Clearing Organizations Risk

The Fund is required to deposit funds to margin open positions in cleared derivative instruments (both futures and swaps) with a clearing broker registered as a “futures commission merchant” (“FCM”). The CEA requires an FCM to segregate all funds received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts and cleared swaps from the FCM’s proprietary assets. Similarly, the CEA requires each FCM to hold in a separate secure account all funds received from customers with respect to any orders for the purchase or sale of foreign futures contracts and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by an FCM from its customers are held by an FCM on a commingled basis in an omnibus account and amounts in excess of assets posted to the clearing organization may be invested by an FCM in certain instruments permitted under the applicable regulation. There is a risk that assets deposited by the Fund with any FCM as margin for futures contracts or commodity options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s FCM. In addition, the assets of the Fund posted as margin against both swaps and futures contracts may not be fully protected in the event of the FCM’s bankruptcy.

Legal, Tax and Regulatory Risks

Legal, tax and regulatory changes could occur that may have material adverse effects on the Fund.

To qualify for the favorable U.S. federal income tax treatment generally accorded to RICs, the Fund must, among other things, derive in each taxable year at least 90% of its gross income from certain prescribed sources and distribute for each taxable year at least 90% of its “investment company taxable income” (generally, ordinary

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income plus the excess, if any, of net short-term capital gain over net long-term capital loss). If for any taxable year the Fund does not qualify as a RIC, all of its taxable income for that year (including its net capital gain) would be subject to tax at regular corporate rates without any deduction for distributions to shareholders, and such distributions would be taxable as ordinary dividends to the extent of the Fund’s current and accumulated earnings and profits.

The current presidential administration has called for significant changes to U.S. fiscal, tax, trade, healthcare, immigration, foreign, and government regulatory policy. In this regard, there is significant uncertainty with respect to legislation, regulation and government policy at the federal level, as well as the state and local levels. Recent events have created a climate of heightened uncertainty and introduced new and difficult-to-quantify macroeconomic and political risks with potentially far-reaching implications. There has been a corresponding meaningful increase in the uncertainty surrounding interest rates, inflation, foreign exchange rates, trade volumes and fiscal and monetary policy. To the extent the U.S. Congress or the current presidential administration implements changes to U.S. policy, those changes may impact, among other things, the U.S. and global economy, international trade and relations, unemployment, immigration, corporate taxes, healthcare, the U.S. regulatory environment, inflation and other areas. Although the Fund cannot predict the impact, if any, of these changes to the Fund’s business, they could adversely affect the Fund’s business, financial condition, operating results and cash flows. Until the Fund knows what policy changes are made and how those changes impact the Fund’s business and the business of the Fund’s competitors over the long term, the Fund will not know if, overall, the Fund will benefit from them or be negatively affected by them.

The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process and by the Internal Revenue Service and the U.S. Treasury Department. Revisions in U.S. federal tax laws and interpretations of these laws could adversely affect the tax consequences of your investment.

Potential Conflicts of Interest of the Advisor, Sub-Advisor and Others

The investment activities of the Advisor, the Sub-Advisor and their affiliates (including BlackRock, Inc. and its subsidiaries (collectively, the “Affiliates”)), and their respective directors, officers or employees, in managing their own accounts and other accounts, may present conflicts of interest that could disadvantage the Fund and its shareholders. The Advisor and its Affiliates may engage in proprietary trading and advise accounts and other funds that have investment objectives similar to those of the Fund and/or that engage in and compete for transactions in the same or similar types of securities, currencies and other assets as are held by the Fund. Subject to the requirements of the Investment Company Act, the Advisor and its Affiliates intend to engage in such activities and may receive compensation from third parties for their services. Neither the Advisor nor any Affiliate is under any obligation to share any investment opportunity, idea or strategy with the Fund. As a result, an Affiliate may compete with the Fund for appropriate investment opportunities. The results of the Fund’s investment activities, therefore, may differ from those of an Affiliate and of other accounts managed by an Affiliate. It is possible that the Fund could sustain losses during periods in which one or more Affiliates and other accounts achieve profits on their trading for proprietary or other accounts. The opposite result is also possible. The Advisor has adopted policies and procedures designed to address potential conflicts of interest. For additional information about potential conflicts of interest and the way in which BlackRock addresses such conflicts, please see “Conflicts of Interest” and “Management of the Fund—Portfolio Management—Potential Material Conflicts of Interest” in the SAI.

Defensive Investing Risk

For defensive purposes, the Fund may allocate assets into cash or short-term fixed-income securities without limitation. In doing so, the Fund may succeed in avoiding losses but may otherwise fail to achieve its investment objective. Further, the value of short-term fixed-income securities may be affected by changing interest rates and by changes in credit ratings of the investments. If the Fund holds cash uninvested it will be subject to the credit risk of the depository institution holding the cash.

Decision-Making Authority Risk

Investors have no authority to make decisions or to exercise business discretion on behalf of the Fund, except as set forth in the Fund’s governing documents. The authority for all such decisions is generally delegated to the Board,

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which in turn, has delegated the day-to-day management of the Fund’s investment activities to the Advisors, subject to oversight by the Board.

Management Risk

The Fund is subject to management risk because it is an actively managed investment portfolio. The Advisors and the individual portfolio managers will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results. The Fund may be subject to a relatively high level of management risk because the Fund may invest in derivative instruments, which may be highly specialized instruments that require investment techniques and risk analyses different from those associated with equities and bonds.

Valuation Risk

The Fund is subject to valuation risk, which is the risk that one or more of the securities in which the Fund invests are valued at prices that the Fund is unable to obtain upon sale due to factors such as incomplete data, market instability or human error. The Advisor may use an independent pricing service or prices provided by dealers to value securities at their market value. Because the secondary markets for certain investments may be limited, such instruments may be difficult to value. See “Net Asset Value.” When market quotations are not available, the Advisor may price such investments pursuant to a number of methodologies, such as computer-based analytical modeling or individual security evaluations. These methodologies generate approximations of market values, and there may be significant professional disagreement about the best methodology for a particular type of financial instrument or different methodologies that might be used under different circumstances. In the absence of an actual market transaction, reliance on such methodologies is essential, but may introduce significant variances in the ultimate valuation of the Fund’s investments. Technological issues and/or errors by pricing services or other third-party service providers may also impact the Fund’s ability to value its investments and the calculation of the Fund’s NAV.

When market quotations are not readily available or are believed by the Advisor to be unreliable, the Advisor will fair value the Fund’s investments in accordance with its policies and procedures. Fair value represents a good faith approximation of the value of an asset or liability. The fair value of an asset or liability held by the Fund is the amount the Fund might reasonably expect to receive from the current sale of that asset or the cost to extinguish that liability in an arm’s-length transaction. Fair value pricing may require determinations that are inherently subjective and inexact about the value of a security or other asset. As a result, there can be no assurance that fair value priced assets will not result in future adjustments to the prices of securities or other assets, or that fair value pricing will reflect a price that the Fund is able to obtain upon sale, and it is possible that the fair value determined for a security or other asset will be materially different from quoted or published prices, from the prices used by others for the same security or other asset and/or from the value that actually could be or is realized upon the sale of that security or other asset. For example, the Fund’s NAV could be adversely affected if the Fund’s determinations regarding the fair value of the Fund’s investments were materially higher than the values that the Fund ultimately realizes upon the disposal of such investments. Where market quotations are not readily available, valuation may require more research than for more liquid investments. In addition, elements of judgment may play a greater role in valuation in such cases than for investments with a more active secondary market because there is less reliable objective data available.

Because of overall size, duration and maturities of positions held by the Fund, the value at which its investments can be liquidated may differ, sometimes significantly, from the interim valuations obtained by the Fund. In addition, the timing of liquidations may also affect the values obtained on liquidation. Securities held by the Fund may routinely trade with bid-offer spreads that may be significant. There can be no guarantee that the Fund’s investments could ultimately be realized at the Fund’s valuation of such investments. In addition, the Fund’s compliance with the asset diversification tests applicable to regulated investment companies depends on the fair market values of the Fund’s assets, and, accordingly, a challenge to the valuations ascribed by the Fund could affect its ability to comply with those tests or require it to pay penalty taxes in order to cure a violation thereof.

The Fund’s NAV per share is a critical component in several operational matters including computation of advisory and services fees and determination of the price at which a tender offer will be made. Consequently, variance in the

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valuation of the Fund’s investments will impact, positively or negatively, the fees and expenses shareholders will pay.

Reliance on the Advisor and Sub-Advisor Risk

The Fund is dependent upon services and resources provided by the Advisors, and therefore the Advisors’ parent, BlackRock, Inc. The Advisors are not required to devote their full time to the business of the Fund and there is no guarantee or requirement that any investment professional or other employee of the Advisors will allocate a substantial portion of his or her time to the Fund. The loss of one or more individuals involved with the Advisors could have a material adverse effect on the performance or the continued operation of the Fund. For additional information on the Advisor, the Sub-Advisor and BlackRock, see “Management of the Fund—Investment Advisor and Sub-Advisor.”

Reliance on Service Providers Risk

The Fund must rely upon the performance of service providers to perform certain functions, which may include functions that are integral to the Fund’s operations and financial performance. Failure by any service provider to carry out its obligations to the Fund in accordance with the terms of its appointment, to exercise due care and skill or to perform its obligations to the Fund at all as a result of insolvency, bankruptcy or other causes could have a material adverse effect on the Fund’s performance and returns to shareholders. The termination of the Fund’s relationship with any service provider, or any delay in appointing a replacement for such service provider, could materially disrupt the business of the Fund and could have a material adverse effect on the Fund’s performance and returns to shareholders.

Information Technology Systems Risk

The Fund is dependent on the Advisors for certain management services as well as back-office functions. The Advisors depend on information technology systems in order to assess investment opportunities, strategies and markets and to monitor and control risks for the Fund. It is possible that a failure of some kind which causes disruptions to these information technology systems could materially limit the Advisors’ ability to adequately assess and adjust investments, formulate strategies and provide adequate risk control. Any such information technology-related difficulty could harm the performance of the Fund. Further, failure of the back-office functions of the Advisors to process trades in a timely fashion could prejudice the investment performance of the Fund.

Operational and Technology Risks

The Fund and the entities with which it interacts directly or indirectly are susceptible to operational and technology risks, including those related to human errors, processing errors, communication errors, systems failures, cybersecurity incidents, and the use of artificial intelligence and machine learning (“AI”), which may result in losses for the Fund and its shareholders or impair the Fund’s operations. These entities include, but are not limited to, the Fund’s adviser, administrator, distributor, other service providers (e.g., index and benchmark providers, accountants, custodians, and transfer agents), financial intermediaries, counterparties, market makers, authorized participants, listing exchanges, other financial market operators, and governmental authorities. Operational and technology risks for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and may cause the Fund’s investments in such issuers to lose value. The Fund may incur substantial costs in order to mitigate operational and technology risks.

Cybersecurity incidents can result from deliberate attacks or unintentional events against an issuer in which the Fund invests, the Fund or any of its service providers. They include, but are not limited to, gaining unauthorized access to systems, misappropriating assets or sensitive information, corrupting or destroying data, and causing operational disruption. Geopolitical tension may increase the scale and sophistication of deliberate attacks, particularly those from nation states or from entities with nation state backing. Cybersecurity incidents may result in any of the

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following: financial losses; interference with the Fund’s ability to calculate its NAV; disclosure of confidential information; impediments to trading; submission of erroneous trades by the Fund or erroneous subscription or redemption orders; the inability of the Fund or its service providers to transact business; violations of applicable privacy and other laws; regulatory fines; penalties; reputational damage; reimbursement or other compensation costs; and other legal and compliance expenses. Furthermore, cybersecurity incidents may render records of the Fund, including records relating to its assets and transactions, shareholder ownership of Fund shares, and other data integral to the Fund’s functioning, inaccessible, inaccurate or incomplete. Power outages, natural disasters, equipment malfunctions and processing errors that threaten information and technology systems relied upon by the Fund or its service providers, as well as market events that occur at a pace that overloads these systems, may also disrupt business operations or impact critical data. In addition, the risks of increased use of AI technologies, such as machine learning, include data risk, transparency risk, and operational risk. The AI technologies, which are generally highly reliant on the collection and analysis of large amounts of data, may incorporate biased or inaccurate data, and it is not possible or practicable to incorporate all relevant data into such technologies. The output or results of any such AI technologies may therefore be incomplete, erroneous, distorted or misleading. Further, AI tools may lack transparency as to how data is utilized and how outputs are generated. AI technologies may also allow the unintended introduction of vulnerabilities into infrastructures and applications. The Fund and its shareholders could be negatively impacted as a result of these risks associated with AI technologies. AI technologies and their current and potential future applications, and the regulatory frameworks within which they operate, continue to quickly evolve, and it is impossible to anticipate the full scope of future AI capabilities or rules and the associated risks to the Fund.

While the Fund’s service providers are required to have appropriate operational, information security and cybersecurity risk management policies and procedures, their methods of risk management may differ from those of the Fund in the setting of priorities, the personnel and resources available or the effectiveness of relevant controls. The Fund and its adviser seek to reduce these risks through controls, procedures and oversight, including establishing business continuity plans and risk management systems. However, there are inherent limitations in such plans and systems, including the possibility that certain risks that may affect the Fund have not been identified or may emerge in the future; that such plans and systems may not completely eliminate the occurrence or mitigate the effects of operational or information security disruptions or failures or of cybersecurity incidents; or that prevention and remediation efforts will not be successful or that incidents will go undetected. The Fund cannot control the systems, information security or other cybersecurity of the issuers in which it invests or its service providers, counterparties, and other third parties whose activities affect the Fund.

Lastly, the regulatory climate governing cybersecurity and data protection is developing quickly and may vary considerably across jurisdictions. Regulators continue to develop new rules and standards related to cybersecurity and data protection. Compliance with evolving regulations can be demanding and costly, requiring substantial resources to monitor and implement required changes.

Misconduct of Employees and of Service Providers Risk

Misconduct or misrepresentations by employees of the Advisor, the Sub-Advisor or the Fund’s service providers could cause significant losses to the Fund. Employee misconduct may include binding the Fund to transactions that exceed authorized limits or present unacceptable risks and unauthorized trading activities, concealing unsuccessful trading activities (which, in any case, may result in unknown and unmanaged risks or losses) or making misrepresentations regarding any of the foregoing. Losses could also result from actions by the Fund’s service providers, including, without limitation, failing to recognize trades and misappropriating assets. In addition, employees and service providers may improperly use or disclose confidential information, which could result in litigation or serious financial harm, including limiting the Fund’s business prospects or future marketing activities. Despite the Advisors’ due diligence efforts, misconduct and intentional misrepresentations may be undetected or not fully comprehended, thereby potentially undermining the Advisors’ due diligence efforts. As a result, no assurances can be given that the due diligence performed by the Advisors will identify or prevent any such misconduct.

Special Risks for Holders of Rights

There is a risk that performance of the Fund may result in the common shares purchasable upon exercise of the rights being less attractive to investors at the conclusion of the subscription period. This may reduce or eliminate the

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value of the rights. Investors who receive rights may find that there is no market to sell rights they do not wish to exercise. If investors exercise only a portion of the rights, common shares may trade at less favorable prices than larger offerings for similar securities.

Portfolio Turnover Risk

The Fund’s annual portfolio turnover rate may vary greatly from year to year, as well as within a given year. Portfolio turnover rate is not considered a limiting factor in the execution of investment decisions for the Fund. A higher portfolio turnover rate results in correspondingly greater brokerage commissions and other transactional expenses that are borne by the Fund. High portfolio turnover may result in an increased realization of net short-term capital gains by the Fund which, when distributed to common shareholders, will be taxable as ordinary income. Additionally, in a declining market, portfolio turnover may create realized capital losses.

Anti-Takeover Provisions Risk

The Fund’s Charter and Bylaws include provisions that could limit the ability of other entities or persons to acquire control of the Fund or convert the Fund to open-end status or to change the composition of the Board. Such provisions may limit the ability of shareholders to sell their shares at a premium over prevailing market prices by discouraging a third party from seeking to obtain control of the Fund. See “Certain Provisions in the Charter and Bylaws.”

HOW THE FUND MANAGES RISK

Investment Limitations

The Fund has adopted certain investment limitations designed to limit investment risk. Some of these limitations are fundamental and thus may not be changed without the approval of the holders of a majority of the outstanding common shares. See “Investment Objective and Policies—Investment Restrictions” in the SAI.

The restrictions and other limitations set forth throughout this Prospectus and in the SAI apply only at the time of purchase of securities and will not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of the acquisition of securities.

Management of Investment Portfolio and Capital Structure to Limit Leverage Risk

The Fund may take certain actions if short-term interest rates increase or market conditions otherwise change (or the Fund anticipates such an increase or change) and any leverage the Fund may have outstanding begins (or is expected) to adversely affect common shareholders. In order to attempt to offset such a negative impact of any outstanding leverage on common shareholders, the Fund may shorten the average maturity of its investment portfolio (by investing in short-term securities) or may reduce any indebtedness that it may have incurred. The success of any such attempt to limit leverage risk depends on the Advisors’ ability to accurately predict interest rate or other market changes. Because of the difficulty of making such predictions, the Fund may never attempt to manage its capital structure in the manner described in this paragraph.

If market conditions suggest that employing leverage, or employing additional leverage if the Fund already has outstanding leverage, would be beneficial, the Fund may enter into one or more credit facilities, increase any existing credit facilities, sell preferred shares or engage in additional leverage transactions, subject to the restrictions of the Investment Company Act.

Strategic Transactions

The Fund may use certain Strategic Transactions designed to limit the risk of price fluctuations of securities and to preserve capital. These Strategic Transactions include using swaps, financial futures contracts, options on financial futures or options based on either an index of long-term securities, or on securities whose prices, in the opinion of the Advisors, correlate with the prices of the Fund’s investments. There can be no assurance that Strategic

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Transactions will be used or used effectively to limit risk, and Strategic Transactions may be subject to their own risks.

MANAGEMENT OF THE FUND

Directors and Officers

The Board is responsible for the overall management of the Fund, including supervision of the duties performed by the Advisors. There are ten Directors. A majority of the Directors are Independent Directors. The name and business address of the Directors and officers of the Fund and their principal occupations and other affiliations during the past five years are set forth under “Management of the Fund” in the SAI.

Investment Advisor and Sub-Advisor

The Advisor is responsible for the management of the Fund’s portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operation of the Fund. BIL serves as the Fund’s Sub-Advisor and performs certain of the day-to-day investment management of the Fund. The Advisor, located at 100 Bellevue Parkway, Wilmington, Delaware 19809, and BIL, located at Edinburgh, EH3 8BL, United Kingdom, are wholly-owned subsidiaries of BlackRock.

BlackRock is one of the world’s largest publicly-traded investment management firms. As of March 31, 2025, BlackRock’s assets under management were approximately $11.6 trillion. BlackRock has over 30 years of experience managing closed-end products and, as of March 31, 2025, advised a registered closed-end family of 49 active exchange-traded funds with approximately $43 billion in managed assets.

BlackRock is independent in ownership and governance, with no single majority shareholder and a majority of independent directors.

Investment Philosophy

The philosophy of the Fund is to generate consistent, risk-managed, and attributable income through active high-quality security selection and sector rotation within the U.S. mortgage-backed securities market utilizing deep fundamental research and market sentiment assessments.

Portfolio Managers

The members of the portfolio management team who are primarily responsible for the day-to-day management of the Fund’s portfolio are as follows:

Matthew Kraeger, Managing Director. Mr. Kraeger is lead portfolio manager for mortgage portfolios on BlackRock’s Global Fixed Income platform. He is responsible for the Mortgage Portfolio Team.

Mr. Kraeger has been a portfolio manager within the mortgage team since 2004, serving as a PM across both institutional accounts and retail funds. Mr. Kraeger has been a PM on the BlackRock GNMA Fund, which was ranked first in the Lipper Fund GNMA category for both 2008 and 2009 3 year periods, along with the BlackRock US Mortgage Fund and the US Government Bond Portfolio which was ranked first in its Lipper Fund category for the 2015 3 year period. Mr. Kraeger began his investment career as an analyst in BlackRock’s operations department in 2000 and joined the Portfolio Analytics Group in 2002.

Mr. Kraeger earned a BS degree in finance from Syracuse University in 2000.

Nicholas Kramvis, Director. Mr. Kramvis is a portfolio manager for Agency MBS portfolios within BlackRock’s Global Fundamental Fixed Income platform. In his role, Mr. Kramvis focuses on Agency MBS strategies, as well as the management and execution of Agency MBS Collateralized Mortgage Obligations (CMOs) and Derivatives.

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Prior to joining BlackRock in 2016, Mr. Kramvis was a Vice President at Barclays where he had been a member of the Agency MBS CMO Trading and Structuring Desk since 2008. At Barclays, Mr. Kramvis was responsible for the active management and trading of the Agency MBS Derivatives book along with identifying collateral and structures for new issue CMOs. Mr. Kramvis started his career on the Agency MBS desk at Lehman Brothers in 2007.

Mr. Kramvis graduated from the University of Chicago in 2007, majoring in Mathematics, Computer Science and Economics.

The SAI provides additional information about each portfolio manager’s compensation, other accounts managed by the portfolio management team and the ownership of the Fund’s securities by each portfolio manager.

Investment Management Agreement

Pursuant to an investment management agreement between the Advisor and the Fund (the “Investment Management Agreement”), the Fund has agreed to pay the Advisor a monthly management fee at an annual rate equal to 0.65% of the average weekly value of the Fund’s Net Assets. “Net Assets” means the total assets of the Fund minus the sum of its accrued liabilities (including the aggregate indebtedness constituting financial leverage). The Advisor, and not the Fund, pays BIL, for services it provides for that portion of the Fund for which BIL acts as sub-adviser, a monthly fee that is equal to a percentage of the investment advisory fees paid by the Fund to the Advisor.

A discussion regarding the basis for the approval of the Investment Management Agreement and the sub-advisory agreement by the Board is available in the Fund’s Semi-Annual Report to shareholders for the fiscal period ended June 30, 2024.

Except as otherwise described in this Prospectus, the Fund pays, in addition to the fees paid to the Advisor, all other costs and expenses of its operations, including compensation of its Directors (other than those affiliated with the Advisor), custodian, leveraging expenses, transfer and dividend disbursing agent expenses, legal fees, rating agency fees, listing fees and expenses, expenses of independent auditors, expenses of repurchasing shares, expenses of preparing, printing and distributing shareholder reports, notices, proxy statements and reports to governmental agencies and taxes, if any.

The Fund and the Advisor have entered into the Fee Waiver Agreement, pursuant to which the Advisor has contractually agreed to waive the management fee with respect to any portion of the Fund’s assets attributable to investments in any equity and fixed-income mutual funds and ETFs managed by the Advisor or its affiliates and other exchange-traded products sponsored by the Advisor or its affiliates, in each case that have a contractual management fee, through June 30, 2027. In addition, pursuant to the Fee Waiver Agreement, the Advisor has contractually agreed to waive its management fees by the amount of investment advisory fees the Fund pays to the Advisor indirectly through its investment in money market funds advised by the Advisor or its affiliates, through June 30, 2027. The Fee Waiver Agreement may be continued from year to year thereafter, provided that such continuance is specifically approved by the Advisor and the Fund (including by a majority of the Fund’s Independent Directors). Neither the Advisor nor the Fund is obligated to extend the Fee Waiver Agreement. The Fee Waiver Agreement may be terminated at any time, without the payment of any penalty, only by the Fund (upon the vote of a majority of the Independent Directors or a majority of the outstanding voting securities of the Fund), upon 90 days’ written notice by the Fund to the Advisor.

Administration Agreement

The Advisor serves as the Fund’s administrator pursuant to an administration agreement (the “Administration Agreement”). Pursuant to the Administration Agreement, BlackRock provides certain administrative services to the Fund including, without limitation, oversight of the determination and publication of the Fund’s NAV, oversight of the maintenance of certain books and records of the Fund, oversight of the preparation and filing of the Fund’s federal, state and local income tax returns and any other required tax returns, and preparation, or oversight of the preparation of, financial information for the Fund’s semi-annual and annual reports, proxy statements and other communications with shareholders and certain other oversight and reporting activities. The administration fee paid

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monthly to the Advisor pursuant to the Administration Agreement is computed at an annual rate of 0.15% of the Fund’s average weekly net assets.

Administration and Accounting Services

State Street Bank and Trust Company provides certain administration and accounting services to the Fund pursuant to an Administration and Fund Accounting Services Agreement (the “Administration and Fund Accounting Services Agreement”). Pursuant to the Administration and Fund Accounting Services Agreement, State Street Bank and Trust Company provides the Fund with, among other things, customary fund accounting services, including computing the Fund’s NAV and maintaining books, records and other documents relating to the Fund’s financial and portfolio transactions, and customary fund administration services, including assisting the Fund with regulatory filings, tax compliance and other oversight activities. For these and other services it provides to the Fund, State Street Bank and Trust Company is paid a monthly fee from the Fund at an annual rate ranging from 0.0075% to 0.015% of the Fund’s Managed Assets, along with an annual fixed fee ranging from $3,000 to $10,000 for the services it provides to the Fund.

Custodian and Transfer Agent

The custodian of the assets of the Fund is State Street Bank and Trust Company, whose principal business address is One Congress Street, Boston, Massachusetts 02114-2016. The custodian is responsible for, among other things, receipt of and disbursement of funds from the Fund’s accounts, establishment of segregated accounts as necessary, and transfer, exchange and delivery of Fund portfolio securities.

Computershare Trust Company, N.A., whose principal business address is 150 Royall Street, Canton, Massachusetts 02021, serves as the Fund’s transfer agent with respect to the common shares.

Independent Registered Public Accounting Firm

[ ], whose principal business address is [ ], is the independent registered public accounting firm of the Fund and is expected to render an opinion annually on the financial statements of the Fund.

NET ASSET VALUE

The NAV of the Fund’s common shares will be computed based upon the value of the Fund’s portfolio securities and other assets. NAV per common share will be determined as of the close of the regular trading session on the NYSE on each business day on which the NYSE is open for trading. The Fund calculates NAV per common share by subtracting the Fund’s liabilities (including accrued expenses, dividends payable and any borrowings of the Fund), and the liquidation value of any outstanding preferred shares of the Fund from the Fund’s total assets (the value of the securities the Fund holds plus cash or other assets, including interest accrued but not yet received) and dividing the result by the total number of common shares of the Fund outstanding.

Valuation of securities held by the Fund is as follows:

Equity Investments. Equity securities traded on a recognized securities exchange (e.g., NYSE), on separate trading boards of a securities exchange or through a market system that provides contemporaneous transaction pricing information (each, an “Exchange”) are valued using information obtained via independent pricing services generally at the Exchange closing price or if an Exchange closing price is not available, the last traded price on that Exchange prior to the time as of which the assets or liabilities are valued. However, under certain circumstances, other means of determining current market value may be used. If an equity security is traded on more than one Exchange, the current market value of the security where it is primarily traded generally will be used. In the event that there are no sales involving an equity security held by the Fund on a day on which the Fund values such security, the last bid (long positions) or ask (short positions) price, if available, will be used as the value of such security. If the Fund holds both long and short positions in the same security, the last bid price will be applied to securities held long and the last ask price will be applied to securities sold short. If no bid or ask price is available on a day on which the Fund values such security, the prior day’s price will be used, unless the Advisor determines that such prior day’s

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price no longer reflects the fair value of the security, in which case such asset would be treated as a Fair Value Asset (as defined below).

Fixed-Income Investments. Fixed-income securities for which market quotations are readily available are generally valued using such securities’ current market value. The Fund values fixed-income portfolio securities using the last available bid prices provided by dealers or prices (including evaluated prices) supplied by the Fund’s approved independent third-party pricing services, each in accordance with the Advisor’s policies and procedures (the “Valuation Procedures”). The pricing services may use matrix pricing or valuation models that utilize certain inputs and assumptions to derive values, including transaction data (e.g., recent representative bids and offers), credit quality information, perceived market movements, news, and other relevant information and by other methods, which may include consideration of: yields or prices of securities of comparable quality, coupon, maturity and type; indications as to values from dealers; general market conditions; and/or other factors and assumptions. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size, but the Fund may hold or transact in such securities in smaller, odd lot sizes. Odd lots may trade at lower prices than institutional round lots. The amortized cost method of valuation may be used with respect to debt obligations with 60 days or less remaining to maturity unless such method does not represent fair value. Certain fixed-income investments, including asset-backed and mortgage related securities, may be valued based on valuation models that consider the estimated cash flows of each tranche of the issuer, establish a benchmark yield and develop an estimated tranche specific spread to the benchmark yield based on the unique attributes of the tranche.

Options, Futures, Swaps and Other Derivatives. Exchange-traded equity options for which market quotations are readily available are valued at the mean of the last bid and ask prices as quoted on the exchange or the board of trade on which such options are traded. In the event that there is no mean price available for an exchange traded equity option held by the Fund on a day on which the Fund values such option, the last bid (long positions) or ask (short positions) price, if available, will be used as the value of such option. If no bid or ask price is available on a day on which the Fund values such option, the prior day’s price will be used, unless the Advisor determines that such prior day’s price no longer reflects the fair value of the option, in which case such option will be treated as a fair value asset. OTC derivatives may be valued using a mathematical model which may incorporate a number of market data factors. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their last sale price or settle price as of the close of such exchanges. Swap agreements and other derivatives are generally valued daily based upon quotations from market makers or by a pricing service in accordance with the Valuation Procedures.

Underlying Funds. Shares of underlying open-end funds (including money market funds) are valued at NAV. Shares of underlying exchange-traded closed-end funds and ETFs will be valued at their most recent closing price.

General Valuation Information

In determining the market value of portfolio investments, the Fund may employ independent third party pricing services, which may use, without limitation, a matrix or formula method that takes into consideration market indexes, matrices, yield curves and other specified inputs and assumptions. This may result in the assets being valued at a price different from the price that would have been determined had the matrix or formula method not been used. The price the Fund could receive upon the sale of any particular portfolio investment may differ from the Fund’s valuation of the investment, particularly for assets that trade in thin or volatile markets or that are valued using a fair valuation methodology or a price provided by an independent pricing service. As a result, the price received upon the sale of an investment may be less than the value ascribed by the Fund, and the Fund could realize a greater than expected loss or lesser than expected gain upon the sale of the investment. The Fund’s ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third party service providers.

Prices obtained from independent third party pricing services, broker-dealers or market makers to value the Fund’s securities and other assets and liabilities are based on information available at the time the Fund values its assets and liabilities. In the event that a pricing service quotation is revised or updated subsequent to the day on which the Fund valued such security, the revised pricing service quotation generally will be applied prospectively. Such determination will be made considering pertinent facts and circumstances surrounding the revision.

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In the event that application of the methods of valuation discussed above result in a price for a security which is deemed not to be representative of the fair market value of such security, the security will be valued by, under the direction of or in accordance with a method approved by the Advisor, the Fund’s valuation designee, as reflecting fair value. All other assets and liabilities (including securities for which market quotations are not readily available) held by the Fund (including restricted securities) are valued at fair value as determined in good faith by the Advisor pursuant to the Valuation Procedures. Any assets and liabilities which are denominated in a foreign currency are translated into U.S. dollars at the prevailing market rates.

Certain of the securities acquired by the Fund may be traded on foreign exchanges or OTC markets on days on which the Fund’s NAV is not calculated. In such cases, the NAV of the Fund’s common shares may be significantly affected on days when investors can neither purchase nor sell shares of the Fund.

Fair Value. When market quotations are not readily available or are believed by the Advisor to be unreliable, the Fund’s investments are valued at fair value (“Fair Value Assets”). Fair Value Assets are valued by the Advisor in accordance with the Valuation Procedures. Pursuant to Rule 2a-5 under the Investment Company Act, the Board of Directors has designated the Advisor as the valuation designee for the Fund. The Advisor may reasonably conclude that a market quotation is not readily available or is unreliable if, among other things, a security or other asset or liability does not have a price source due to its complete lack of trading, if the Advisor believes a market quotation from a broker-dealer or other source is unreliable (e.g., where it varies significantly from a recent trade, or no longer reflects the fair value of the security or other asset or liability subsequent to the most recent market quotation), or where the security or other asset or liability is only thinly traded or due to the occurrence of a significant event subsequent to the most recent market quotation. For this purpose, a “significant event” is deemed to occur if the Advisor determines, in its reasonable business judgment, that an event that has occurred after the close of trading for an asset or liability but prior to or at the time of pricing the Fund’s assets or liabilities, is likely to cause a material change to the last exchange closing price or closing market price of one or more assets or liabilities held by the Fund. On any day the NYSE is open and a foreign market or the primary exchange on which a foreign asset or liability is traded is closed, such asset or liability will be valued using the prior day’s price, provided that the Advisor is not aware of any significant event or other information that would cause such price to no longer reflect the fair value of the asset or liability, in which case such asset or liability would be treated as a Fair Value Asset. For certain foreign assets, a third-party vendor supplies evaluated, systematic fair value pricing based upon the movement of a proprietary multi-factor model after the relevant foreign markets have closed. This systematic fair value pricing methodology is designed to correlate the prices of foreign assets following the close of the local markets to the price that might have prevailed as of the Fund’s pricing time.

The Advisor’s Rule 2a-5 Committee is responsible for reviewing and approving methodologies by investment type and significant inputs used in the fair valuation of Fund assets or liabilities. In addition, the Fund’s accounting agent assists the Advisor by periodically endeavoring to confirm the prices it receives from all third party pricing services, index providers and broker-dealers. The Advisor regularly evaluates the values assigned to the securities and other assets and liabilities of the Fund.

When determining the price for a Fair Value Asset, the Advisor will seek to determine the price that the Fund might reasonably expect to receive from the current sale of that asset or liability in an arm’s-length transaction on the date on which the asset or liability is being valued, and does not seek to determine the price the Fund might reasonably expect to receive for selling an asset or liability at a later time or if it holds the asset or liability to maturity. Fair value determinations will be based upon all available factors that the Advisor deems relevant at the time of the determination, and may be based on analytical values determined by the Advisor using proprietary or third party valuation models.

Fair value represents a good faith approximation of the value of an asset or liability. When determining the fair value of an investment, one or more fair value methodologies may be used (depending on certain factors, including the asset type). For example, the investment may be initially priced based on the original cost of the investment or, alternatively, using proprietary or third-party models that may rely upon one or more unobservable inputs. Prices of actual, executed or historical transactions in the relevant investment (or comparable instruments) or, where appropriate, an appraisal by a third-party experienced in the valuation of similar instruments, may also be used as a basis for establishing the fair value of an investment.

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The fair value of one or more assets or liabilities may not, in retrospect, be the price at which those assets or liabilities could have been sold during the period in which the particular fair values were used in determining the Fund’s NAV. As a result, the Fund’s sale or repurchase of its shares at NAV, at a time when a holding or holdings are valued at fair value, may have the effect of diluting or increasing the economic interest of existing shareholders.

The Fund’s annual audited financial statements, which are prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”), follow the requirements for valuation set forth in Financial Accounting Standards Board Accounting Standards Codification Topic 820, “Fair Value Measurements and Disclosures” (“ASC 820”), which defines and establishes a framework for measuring fair value under US GAAP and expands financial statement disclosure requirements relating to fair value measurements.

Generally, ASC 820 and other accounting rules applicable to funds and various assets in which they invest are evolving. Such changes may adversely affect the Fund. For example, the evolution of rules governing the determination of the fair market value of assets or liabilities, to the extent such rules become more stringent, would tend to increase the cost and/or reduce the availability of third-party determinations of fair market value. This may in turn increase the costs associated with selling assets or affect their liquidity due to the Fund’s inability to obtain a third-party determination of fair market value.

DISTRIBUTIONS

The Fund distributes to shareholders monthly dividends of net investment income and all or a portion of net short-term capital gains. The Fund will pay shareholders at least annually all or substantially all of its investment company taxable income. The Investment Company Act generally limits the Fund to one capital gain distribution per year, subject to certain exceptions, including as discussed below in connection with the Distribution Plan.

The Fund has adopted a plan to support a level distribution of income, capital gains and/or return of capital. The Distribution Plan has been approved by the Board and is consistent with the Fund’s investment objective and policies. The fixed amount distributed per share is subject to change at the discretion of the Board. The Fund is currently not relying on any exemptive relief from Section 19(b) of the Investment Company Act. Under its Distribution Plan, the Fund will distribute all available investment income to its shareholders as required by the Internal Revenue Code of 1986, as amended (the “Code”). If sufficient income (inclusive of net investment income and short-term capital gains) is not earned on a monthly basis, the Fund will distribute long-term capital gains and/or return of capital to shareholders in order to maintain a level distribution. A return of capital distribution may involve a return of the shareholder’s original investment. Though not currently taxable, such a distribution may lower a shareholder’s basis in the Fund, thus potentially subjecting the shareholder to future tax consequences in connection with the sale of Fund’s shares, even if sold at a loss to the shareholder’s original investment. Each monthly distribution to shareholders is expected to be at the fixed amount established by the Board; however, the Fund may make additional distributions from time to time, including additional capital gain distributions at the end of the taxable year, if required to meet requirements imposed by the Code and/or the Investment Company Act. Shareholders should not draw any conclusions about the Fund’s investment performance from the amount of these distributions or from the terms of the Distribution Plan. The Fund’s total return performance on NAV will be presented in its financial highlights table, which will be available in the Fund’s shareholder reports, every six-months.

The Board may amend, suspend or terminate the Distribution Plan without prior notice if it deems such actions to be in the best interests of the Fund or its shareholders. The suspension or termination of the Distribution Plan could have the effect of creating a trading discount (if the Fund’s stock is trading at or above NAV) or widening an existing trading discount. The Fund is subject to risks that could have an adverse impact on its ability to maintain level distributions. Examples of potential risks include, but are not limited to, economic downturns impacting the markets, decreased market volatility, companies suspending or decreasing corporate dividend distributions and changes in the Code. Please see “Risks” for a more complete description of the Fund’s risks.

The tax treatment and characterization of the Fund’s distributions may vary significantly from time to time because of the varied nature of the Fund’s investments. The ultimate tax characterization of the Fund’s distributions made in a fiscal year cannot finally be determined until after the end of that fiscal year. As a result, there is a possibility that the Fund may make total distributions during a fiscal year in an amount that exceeds the Fund’s earnings and profits

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for U.S. federal income tax purposes. In such situations, the amount by which the Fund’s total distributions exceed earnings and profits would generally be treated as a return of capital reducing the amount of a shareholder’s tax basis in such shareholder’s shares, with any amounts exceeding such basis treated as gain from the sale of shares.

Various factors will affect the level of the Fund’s income, including the asset mix and the Fund’s use of hedging. To permit the Fund to maintain a more stable monthly distribution, the Fund may from time to time distribute less than the entire amount of income earned in a particular period. The undistributed income would be available to supplement future distributions. As a result, the distributions paid by the Fund for any particular monthly period may be more or less than the amount of income actually earned by the Fund during that period. Undistributed income will add to the Fund’s NAV and, correspondingly, distributions from undistributed income will reduce the Fund’s NAV. The Fund intends to distribute any long-term capital gains not distributed under the Distribution Plan annually.

The Fund reserves the right to change its distribution policy and the basis for establishing the rate of its monthly distributions at any time and may do so without prior notice to shareholders.

Shareholders will automatically have all dividends and distributions reinvested in common shares of the Fund issued by the Fund or purchased in the open market in accordance with the Fund’s dividend reinvestment plan unless an election is made to receive cash. See “Dividend Reinvestment Plan.”

DIVIDEND REINVESTMENT PLAN

Please refer to the section of the Fund’s most recent annual report on Form N-CSR entitled “Automatic Dividend Reinvestment Plan”, which is incorporated by reference herein, for a discussion of the Fund’s dividend reinvestment plan.

RIGHTS OFFERINGS

The Fund may in the future, and at its discretion, choose to make offerings of rights to its shareholders to purchase common shares. Rights may be issued independently or together with any other offered security and may or may not be transferable by the person purchasing or receiving the rights. In connection with a rights offering to shareholders, we would distribute certificates or other documentation (i.e., rights cards distributed in lieu of certificates) evidencing the rights and a Prospectus Supplement to our shareholders as of the record date that we set for determining the shareholders eligible to receive rights in such rights offering. Any such future rights offering will be made in accordance with the Investment Company Act. Under the laws of Maryland, the Board is authorized to approve rights offerings without obtaining shareholder approval.

The staff of the SEC has interpreted the Investment Company Act as not requiring shareholder approval of a transferable rights offering to purchase common shares at a price below the then current NAV so long as certain conditions are met, including: (i) a good faith determination by a fund’s board that such offering would result in a net benefit to existing shareholders; (ii) the offering fully protects shareholders’ preemptive rights and does not discriminate among shareholders (except for the possible effect of not offering fractional rights); (iii) management uses its best efforts to ensure an adequate trading market in the rights for use by shareholders who do not exercise such rights; and (iv) the ratio of a transferable rights offering does not exceed one new share for each three rights held.

The applicable Prospectus Supplement would describe the following terms of the rights in respect of which this Prospectus is being delivered:

•

the period of time the offering would remain open;

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•

the underwriter or distributor, if any, of the rights and any associated underwriting fees or discounts applicable to purchases of the rights;

•

the title of such rights;

•

the exercise price for such rights (or method of calculation thereof);

•

the number of such rights issued in respect of each share;

•

the number of rights required to purchase a single share;

•

the extent to which such rights are transferable and the market on which they may be traded if they are transferable;

•

if applicable, a discussion of the material U.S. federal income tax considerations applicable to the issuance or exercise of such rights;

•

the date on which the right to exercise such rights will commence, and the date on which such right will expire (subject to any extension);

•

the extent to which such rights include an over-subscription privilege with respect to unsubscribed securities and the terms of such over-subscription privilege; and

•

termination rights we may have in connection with such rights offering.

A certain number of rights would entitle the holder of the right(s) to purchase for cash such number of common shares at such exercise price as in each case is set forth in, or be determinable as set forth in, the Prospectus Supplement relating to the rights offered thereby. Rights would be exercisable at any time up to the close of business on the expiration date for such rights set forth in the Prospectus Supplement. After the close of business on the expiration date, all unexercised rights would become void. Upon expiration of the rights offering and the receipt of payment and the rights certificate or other appropriate documentation properly executed and completed and duly executed at the corporate trust office of the rights agent, or any other office indicated in the Prospectus Supplement, the common shares purchased as a result of such exercise will be issued as soon as practicable. To the extent permissible under applicable law, we may determine to offer any unsubscribed offered securities directly to persons other than shareholders, to or through agents, underwriters or dealers or through a combination of such methods, as set forth in the applicable Prospectus Supplement.

TAX MATTERS

The following discussion is a brief summary of certain U.S. federal income tax considerations affecting the Fund and the purchase, ownership and disposition of the Fund’s common shares. A more detailed discussion of the tax rules applicable to the Fund and its common shareholders can be found in the SAI that is incorporated by reference into this Prospectus. Except as otherwise noted, this discussion assumes you are a taxable U.S. holder (as defined below) and that you hold your common shares as capital assets for U.S. federal income tax purposes (generally, assets held for investment). This discussion is based upon current provisions of the Code, the regulations promulgated thereunder and judicial and administrative authorities, all of which are subject to change or differing interpretations by the courts or the Internal Revenue Service, possibly with retroactive effect. No attempt is made to present a detailed explanation of all U.S. federal tax concerns affecting the Fund and its common shareholders. The Fund has not sought and will not seek any ruling from the Internal Revenue Service regarding any matters discussed herein. No assurance can be given that the Internal Revenue Service would not assert, or that a court would not sustain, a position contrary to those set forth below. This summary does not discuss any aspects of non-U.S., state or local law. The discussion set forth herein does not constitute tax advice and potential investors are urged to consult their own tax advisers to determine the specific U.S. federal, state, local and foreign tax consequences to them of investing in the Fund.

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In addition, no attempt is made to address tax considerations applicable to an investor with a special tax status, such as, without limitation, a financial institution, REIT, insurance company, regulated investment company, individual retirement account, other tax-exempt organization, dealer in securities or currencies, person holding shares of the Fund as part of a hedging, integrated, conversion or straddle transaction, trader in securities that has elected the mark-to-market method of accounting for its securities, U.S. holder (as defined below) whose functional currency is not the U.S. dollar, investor with “applicable financial statements” within the meaning of Section 451(b) of the Code, or non-U.S. investor. Furthermore, this discussion does not reflect possible application of the alternative minimum tax.

A U.S. holder is a beneficial owner that is for U.S. federal income tax purposes:

•

a citizen or individual resident of the United States (including certain former citizens and former long-term residents);

•

a corporation or other entity treated as a corporation for U.S. federal income tax purposes, created or organized in or under the laws of the United States or any state thereof or the District of Columbia;

•

an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or

•

a trust with respect to which a court within the United States is able to exercise primary supervision over its administration and one or more U.S. persons have the authority to control all of its substantial decisions or the trust has made a valid election in effect under applicable Treasury regulations to be treated as a U.S. person for U.S. federal income tax purposes, whose status as a U.S. person is not overridden by an applicable tax treaty.

Taxation of the Fund

The Fund has elected to be treated as a RIC under Subchapter M of the Code. In order to qualify as a RIC, the Fund must, among other things, satisfy certain requirements relating to the sources of its income, diversification of its assets, and distribution of its income to its shareholders. First, the Fund must derive at least 90% of its annual gross income from dividends, interest, payments with respect to securities loans, gains from the sale or other disposition of stock or securities or foreign currencies, or other income (including but not limited to gains from options, futures and forward contracts) derived with respect to its business of investing in such stock, securities or currencies, or net income derived from interests in “qualified publicly traded partnerships” (as defined in the Code) (the “90% gross income test”). Second, the Fund must diversify its holdings so that, at the close of each quarter of its taxable year, (i) at least 50% of the value of its total assets consists of cash, cash items, U.S. Government securities, securities of other RICs and other securities, with such other securities limited in respect of any one issuer to an amount not greater in value than 5% of the value of the Fund’s total assets and to not more than 10% of the outstanding voting securities of such issuer, and (ii) not more than 25% of the market value of the total assets is invested in the securities (other than U.S. Government securities and securities of other RICs) of any one issuer, any two or more issuers controlled by the Fund and engaged in the same, similar or related trades or businesses, or any one or more “qualified publicly traded partnerships.”

As long as the Fund qualifies as a RIC, the Fund will generally not be subject to corporate-level U.S. federal income tax on income and gains that it distributes each taxable year to its shareholders, provided that in such taxable year it distributes at least 90% of the sum of (i) its net tax-exempt interest income, if any, and (ii) its “investment company taxable income” (which includes, among other items, dividends, taxable interest, taxable original issue discount and market discount income, income from securities lending, net short-term capital gain in excess of net long-term capital loss, and any other taxable income other than “net capital gain” (as defined below) and is reduced by deductible expenses) determined without regard to the deduction for dividends paid. The Fund may retain for investment its net capital gain (which consists of the excess of its net long-term capital gain over its net short-term capital loss). However, if the Fund retains any net capital gain or any investment company taxable income, it will be subject to tax at regular corporate rates on the amount retained.

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The Code imposes a 4% nondeductible excise tax on the Fund to the extent the Fund does not distribute by the end of any calendar year at least the sum of (i) 98% of its ordinary income (not taking into account any capital gain or loss) for the calendar year and (ii) 98.2% of its capital gain in excess of its capital loss (adjusted for certain ordinary losses) for a one-year period generally ending on October 31 of the calendar year (unless an election is made to use the Fund’s fiscal year). In addition, the minimum amounts that must be distributed in any year to avoid the excise tax will be increased or decreased to reflect any under-distribution or over-distribution, as the case may be, from the previous year. For purposes of the excise tax, the Fund will be deemed to have distributed any income on which it paid U.S. federal income tax. While the Fund intends to distribute any income and capital gain in the manner necessary to minimize imposition of the 4% nondeductible excise tax, there can be no assurance that sufficient amounts of the Fund’s taxable income and capital gain will be distributed to entirely avoid the imposition of the excise tax. In that event, the Fund will be liable for the excise tax only on the amount by which it does not meet the foregoing distribution requirement.

If in any taxable year the Fund should fail to qualify under Subchapter M of the Code for tax treatment as a RIC, the Fund would incur a regular corporate U.S. federal income tax upon all of its taxable income for that year, and all distributions to its shareholders (including distributions of net capital gain) would be taxable to shareholders as ordinary dividend income for U.S. federal income tax purposes to the extent of the Fund’s earnings and profits. Provided that certain holding period and other requirements were met, such dividends would be eligible (i) to be treated as qualified dividend income in the case of shareholders taxed as individuals and (ii) for the dividends received deduction in the case of corporate shareholders. In addition, to qualify again to be taxed as a RIC in a subsequent year, the Fund would be required to distribute to shareholders its earnings and profits attributable to non-RIC years. In addition, if the Fund failed to qualify as a RIC for a period greater than two taxable years, then, in order to qualify as a RIC in a subsequent year, the Fund would be required to elect to recognize and pay tax on any net built-in gain (the excess of aggregate gain, including items of income, over aggregate loss that would have been realized if the Fund had been liquidated) or, alternatively, be subject to taxation on such built-in gain recognized for a period of five years.

The remainder of this discussion assumes that the Fund qualifies for taxation as a RIC.

The Fund’s Investments. Certain of the Fund’s investment practices are subject to special and complex U.S. federal income tax provisions (including mark-to-market, constructive sale, straddle, wash sale, short sale and other rules) that may, among other things, (i) disallow, suspend or otherwise limit the allowance of certain losses or deductions, (ii) convert lower taxed long-term capital gains or qualified dividend income into higher taxed short-term capital gains or ordinary income, (iii) convert ordinary loss or a deduction into capital loss (the deductibility of which is more limited), (iv) cause the Fund to recognize income or gain without a corresponding receipt of cash, (v) adversely affect the time as to when a purchase or sale of stock or securities is deemed to occur, (vi) adversely alter the characterization of certain complex financial transactions and (vii) produce income that will not be “qualified” income for purposes of the 90% annual gross income requirement described above. These U.S. federal income tax provisions could therefore affect the amount, timing and character of distributions to common shareholders. The Fund intends to monitor its transactions and may make certain tax elections and may be required to dispose of securities to mitigate the effect of these provisions and prevent disqualification of the Fund as a RIC. Additionally, the Fund may be required to limit its activities in derivative instruments in order to enable it to maintain its RIC status.

The Fund may invest a portion of its net assets in below investment grade securities. Investments in these types of securities may present special tax issues for the Fund. U.S. federal income tax rules are not entirely clear about issues such as when the Fund may cease to accrue interest, original issue discount or market discount, when and to what extent deductions may be taken for bad debts or worthless securities, how payments received on obligations in default should be allocated between principal and income and whether modifications or exchanges of debt obligations in a bankruptcy or workout context are taxable. These and other issues could affect the Fund’s ability to distribute sufficient income to preserve its status as a RIC or to avoid the imposition of U.S. federal income or excise tax.

Certain debt securities acquired by the Fund may be treated as debt securities that were originally issued at a discount. Generally, the amount of the original issue discount is treated as interest income and is included in taxable income (and required to be distributed by the Fund in order to qualify as a RIC and avoid U.S. federal income tax or

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the 4% excise tax on undistributed income) over the term of the security, even though payment of that amount is not received until a later time, usually when the debt security matures.

If the Fund purchases a debt security on a secondary market at a price lower than its adjusted issue price, the excess of the adjusted issue price over the purchase price is “market discount.” Unless the Fund makes an election to accrue market discount on a current basis, generally, any gain realized on the disposition of, and any partial payment of principal on, a debt security having market discount is treated as ordinary income to the extent the gain, or principal payment, does not exceed the “accrued market discount” on the debt security. Market discount generally accrues in equal daily installments. If the Fund ultimately collects less on the debt instrument than its purchase price plus the market discount previously included in income, the Fund may not be able to benefit from any offsetting loss deductions.

The Fund may invest in preferred securities or other securities the U.S. federal income tax treatment of which may not be clear or may be subject to recharacterization by the Internal Revenue Service. To the extent the tax treatment of such securities or the income from such securities differs from the tax treatment expected by the Fund, it could affect the timing or character of income recognized by the Fund, potentially requiring the Fund to purchase or sell securities, or otherwise change its portfolio, in order to comply with the tax rules applicable to RICs under the Code.

Gain or loss on the sale of securities by the Fund will generally be long-term capital gain or loss if the securities have been held by the Fund for more than one year. Gain or loss on the sale of securities held for one year or less will be short-term capital gain or loss.

Because the Fund may invest in foreign securities, its income from such securities may be subject to non-U.S. taxes.

Foreign currency gain or loss on foreign currency exchange contracts, non-U.S. dollar-denominated securities contracts, and non-U.S. dollar-denominated futures contracts, options and forward contracts that are not section 1256 contracts (as defined below) generally will be treated as ordinary income and loss.

Income from options on individual securities written by the Fund will generally not be recognized by the Fund for tax purposes until an option is exercised, lapses or is subject to a “closing transaction” (as defined by applicable regulations) pursuant to which the Fund’s obligations with respect to the option are otherwise terminated. If the option lapses without exercise, the premiums received by the Fund from the writing of such options will generally be characterized as short-term capital gain. If the Fund enters into a closing transaction, the difference between the premiums received and the amount paid by the Fund to close out its position will generally be treated as short-term capital gain or loss. If an option written by the Fund is exercised, thereby requiring the Fund to sell the underlying security, the premium will increase the amount realized upon the sale of the security, and the character of any gain on such sale of the underlying security as short-term or long-term capital gain will depend on the holding period of the Fund in the underlying security. Because the Fund will not have control over the exercise of the options it writes, such exercises or other required sales of the underlying securities may cause the Fund to realize gains or losses at inopportune times.

Index options that qualify as “section 1256 contracts” will generally be “marked-to-market” for U.S. federal income tax purposes. As a result, the Fund will generally recognize gain or loss on the last day of each taxable year equal to the difference between the value of the option on that date and the adjusted basis of the option. The adjusted basis of the option will consequently be increased by such gain or decreased by such loss. Any gain or loss with respect to options on indices and sectors that qualify as “section 1256 contracts” will be treated as short-term capital gain or loss to the extent of 40% of such gain or loss and long-term capital gain or loss to the extent of 60% of such gain or loss. Because the mark-to-market rules may cause the Fund to recognize gain in advance of the receipt of cash, the Fund may be required to dispose of investments in order to meet its distribution requirements. “Mark-to-market” losses may be suspended or otherwise limited if such losses are part of a straddle or similar transaction.

Tax-Exempt Investors and Excess Inclusion Income

Under current law, the Fund serves to block unrelated business taxable income (“UBTI”) from being realized by its tax-exempt shareholders. UBTI includes unrelated debt-financed income, which generally consists of income and

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gains derived by a tax-exempt investor from the disposition of property that has been acquired with borrowed money. A tax-exempt shareholder could realize UBTI by virtue of its investment in the Fund if the shareholder borrows money to acquire its shares fund.

Certain types of income received by the Fund from REITs, real estate mortgage investment conduits, taxable mortgage pools or other investments may cause the Fund to report some or all of its distributions as “excess inclusion income.” To Fund shareholders, such excess inclusion income may: (i) constitute taxable income, as UBTI for those shareholders who would otherwise be tax-exempt such as individual retirement accounts, 401(k) accounts, Keogh plans, pension plans and certain charitable entities; (ii) not be offset by otherwise allowable deductions for tax purposes; (iii) not be eligible for reduced U.S. withholding for non-U.S. shareholders even from tax treaty countries; and (iv) cause the Fund to be subject to tax if certain “disqualified organizations,” as defined by the Internal Revenue Code (e.g., governmental agencies, certain cooperatives and other organizations exempt from federal income tax and not subject to unrelated business income tax), are Fund shareholders. If a charitable remainder annuity trust or a charitable remainder unitrust (each as defined in Section 664 of the Internal Revenue Code) has UBTI for a taxable year, a 100% excise tax on the UBTI is imposed on the trust.

The Fund tries to avoid investing in REITs that are expected to generate excess inclusion income, but the Fund may not always be successful in doing so. Because information about a REIT’s investments may be inadequate or inaccurate, or because a REIT may change its investment program, the Fund may not be successful in avoiding the consequences described above. Avoidance of investments in REITs that generate excess inclusion income may require the Fund to forego otherwise attractive investment opportunities.

Taxation of Common Shareholders

The Fund will either distribute or retain for reinvestment all or part of its net capital gain. If any such gain is retained, the Fund will be subject to a corporate income tax on such retained amount. In that event, the Fund expects to report the retained amount as undistributed capital gain in a notice to its common shareholders, each of whom, if subject to U.S. federal income tax on long-term capital gains, (i) will be required to include in income for U.S. federal income tax purposes as long-term capital gain its share of such undistributed amounts, (ii) will be entitled to credit its proportionate share of the tax paid by the Fund against its U.S. federal income tax liability and to claim refunds to the extent that the credit exceeds such liability and (iii) will increase its basis in its common shares by the amount of undistributed capital gains included in the shareholder’s income less the tax deemed paid by the shareholder under clause (ii).

Distributions paid to you by the Fund from its net capital gain, if any, that the Fund properly reports as capital gain dividends (“capital gain dividends”) are taxable as long-term capital gains, regardless of how long you have held your common shares. All other dividends paid to you by the Fund (including dividends from net short-term capital gains) from its current or accumulated earnings and profits, other than exempt-interest dividends (“ordinary income dividends”) are generally subject to tax as ordinary income. Provided that certain holding period and other requirements are met, ordinary income dividends (if properly reported by the Fund) may qualify (i) for the dividends received deduction in the case of corporate shareholders to the extent that the Fund’s income consists of dividend income from U.S. corporations, and (ii) in the case of individual shareholders, as “qualified dividend income” eligible to be taxed at long-term capital gains rates to the extent that the Fund receives qualified dividend income. Qualified dividend income is, in general, dividend income from taxable domestic corporations and certain qualified foreign corporations (e.g., generally, foreign corporations incorporated in a possession of the United States or in certain countries with a qualifying comprehensive tax treaty with the United States, or whose stock with respect to which such dividend is paid is readily tradable on an established securities market in the United States). There can be no assurance as to what portion, if any, of the Fund’s distributions will constitute qualified dividend income or be eligible for the dividends received deduction.

Any distributions you receive that are in excess of the Fund’s current and accumulated earnings and profits will be treated as a return of capital to the extent of your adjusted tax basis in your common shares, and thereafter as capital gain from the sale of common shares. The amount of any Fund distribution that is treated as a return of capital will reduce your adjusted tax basis in your common shares, thereby increasing your potential gain or reducing your potential loss on any subsequent sale or other disposition of your common shares.

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Common shareholders may be entitled to offset their capital gain dividends with capital losses. The Code contains a number of statutory provisions affecting when capital losses may be offset against capital gain, and limiting the use of losses from certain investments and activities. Accordingly, common shareholders that have capital losses are urged to consult their tax advisers.

Dividends and other taxable distributions are taxable to you even though they are reinvested in additional common shares of the Fund. Dividends and other distributions paid by the Fund are generally treated under the Code as received by you at the time the dividend or distribution is made. If, however, the Fund pays you a dividend in January that was declared in the previous October, November or December to common shareholders of record on a specified date in one of such months, then such dividend will be treated for U.S. federal income tax purposes as being paid by the Fund and received by you on December 31 of the year in which the dividend was declared. In addition, certain other distributions made after the close of the Fund’s taxable year may be “spilled back” and treated as paid by the Fund (except for purposes of the 4% nondeductible excise tax) during such taxable year. In such case, you will be treated as having received such dividends in the taxable year in which the distributions were actually made.

The price of common shares purchased at any time may reflect the amount of a forthcoming distribution. Those purchasing common shares just prior to the record date of a distribution will receive a distribution which will be taxable to them even though it represents, economically, a return of invested capital.

The Fund will send you information after the end of each year setting forth the amount and tax status of any distributions paid to you by the Fund.

The sale or other disposition of common shares will generally result in capital gain or loss to you and will be long-term capital gain or loss if you have held such common shares for more than one year at the time of sale. Any loss upon the sale or other disposition of common shares held for six months or less will be treated as long-term capital loss to the extent of any capital gain dividends received (including amounts credited as an undistributed capital gain dividend) by you with respect to such common shares. Any loss you recognize on a sale or other disposition of common shares will be disallowed if you acquire other common shares (whether through the automatic reinvestment of dividends or otherwise) within a 61-day period beginning 30 days before and ending 30 days after your sale or exchange of the common shares. In such case, your tax basis in the common shares acquired will be adjusted to reflect the disallowed loss.

If the Fund liquidates, shareholders generally will realize capital gain or loss upon such liquidation in an amount equal to the difference between the amount of cash or other property received by the shareholder (including any property deemed received by reason of its being placed in a liquidating trust) and the shareholder’s adjusted tax basis in its common shares. Any such gain or loss will be long-term if the shareholder is treated as having a holding period in the Fund shares of greater than one year, and otherwise will be short-term.

Current U.S. federal income tax law taxes both long-term and short-term capital gain of corporations at the rates applicable to ordinary income. For non-corporate taxpayers, short-term capital gain is currently taxed at rates applicable to ordinary income while long-term capital gain generally is taxed at a reduced maximum rate. The deductibility of capital losses is subject to limitations under the Code.

Certain U.S. holders who are individuals, estates or trusts and whose income exceeds certain thresholds will be required to pay a 3.8% Medicare tax on all or a portion of their “net investment income,” which includes dividends received from the Fund and capital gains from the sale or other disposition of the Fund’s common shares.

A common shareholder that is a nonresident alien individual or a foreign corporation (a “foreign investor”) generally will be subject to U.S. federal withholding tax at the rate of 30% (or possibly a lower rate provided by an applicable tax treaty) on ordinary income dividends (except as discussed below). In general, U.S. federal withholding tax and U.S. federal income tax will not apply to any gain or income realized by a foreign investor in respect of any distribution of exempt-interest dividends or net capital gain (including amounts credited as an undistributed capital gain dividend) or upon the sale or other disposition of common shares of the Fund. Different tax consequences may result if the foreign investor is engaged in a trade or business in the United States or, in the case of an individual, is

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present in the United States for 183 days or more during a taxable year and certain other conditions are met. Foreign investors should consult their tax advisers regarding the tax consequences of investing in the Fund’s common shares.

Ordinary income dividends properly reported by a RIC are generally exempt from U.S. federal withholding tax where they (i) are paid in respect of the RIC’s “qualified net interest income” (generally, its U.S.-source interest income, other than certain contingent interest and interest from obligations of a corporation or partnership in which the RIC is at least a 10% shareholder, reduced by expenses that are allocable to such income) or (ii) are paid in respect of the RIC’s “qualified short-term capital gains” (generally, the excess of the RIC’s net short-term capital gain over its long-term capital loss for such taxable year). Depending on its circumstances, the Fund may report all, some or none of its potentially eligible dividends as such qualified net interest income or as qualified short-term capital gains, and/or treat such dividends, in whole or in part, as ineligible for this exemption from withholding. In order to qualify for this exemption from withholding, a foreign investor needs to comply with applicable certification requirements relating to its non-U.S. status (including, in general, furnishing an IRS Form W-8BEN, W-8BEN-E or substitute Form). In the case of common shares held through an intermediary, the intermediary may have withheld tax even if the Fund reported the payment as qualified net interest income or qualified short-term capital gain. Foreign investors should contact their intermediaries with respect to the application of these rules to their accounts. There can be no assurance as to what portion of the Fund’s distributions would qualify for favorable treatment as qualified net interest income or qualified short-term capital gains.

In addition, withholding at a rate of 30% will apply to dividends paid in respect of common shares of the Fund held by or through certain foreign financial institutions (including investment funds), unless such institution enters into an agreement with the Treasury to report, on an annual basis, information with respect to shares in, and accounts maintained by, the institution to the extent such shares or accounts are held by certain U.S. persons and by certain non-U.S. entities that are wholly or partially owned by U.S. persons and to withhold on certain payments. Accordingly, the entity through which common shares of the Fund are held will affect the determination of whether such withholding is required. Similarly, dividends paid in respect of common shares of the Fund held by an investor that is a non-financial foreign entity that does not qualify under certain exemptions will be subject to withholding at a rate of 30%, unless such entity either (i) certifies that such entity does not have any “substantial United States owners” or (ii) provides certain information regarding the entity’s “substantial United States owners,” which the Fund or applicable withholding agent will in turn provide to the Secretary of the Treasury. An intergovernmental agreement between the United States and an applicable foreign country, or future Treasury regulations or other guidance, may modify these requirements. The Fund will not pay any additional amounts to common shareholders in respect of any amounts withheld. Foreign investors are encouraged to consult with their tax advisers regarding the possible implications of these rules on their investment in the Fund’s common shares.

U.S. federal backup withholding tax may be required on dividends, distributions and sale proceeds payable to certain non-exempt common shareholders who fail to supply their correct taxpayer identification number (in the case of individuals, generally, their social security number) or to make required certifications, or who are otherwise subject to backup withholding. Backup withholding is not an additional tax and any amount withheld may be refunded or credited against your U.S. federal income tax liability, if any, provided that you timely furnish the required information to the Internal Revenue Service.

Ordinary income dividends, capital gain dividends, and gain from the sale or other disposition of common shares of the Fund also may be subject to state, local, and/or foreign taxes. Common shareholders are urged to consult their own tax advisers regarding specific questions about U.S. federal, state, local or foreign tax consequences to them of investing in the Fund.

The foregoing is a general and abbreviated summary of certain provisions of the Code and the Treasury regulations currently in effect as they directly govern the taxation of the Fund and its common shareholders. These provisions are subject to change by legislative or administrative action, and any such change may be retroactive. A more detailed discussion of the tax rules applicable to the Fund and its common shareholders can be found in the SAI that is incorporated by reference into this Prospectus. Common shareholders are urged to consult their tax advisers regarding specific questions as to U.S. federal, state, local and foreign income or other taxes.

Please refer to the SAI for more detailed information. You are urged to consult your tax adviser.

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TAXATION OF HOLDERS OF RIGHTS

The value of a right will not be includible in the income of a common shareholder at the time the right is issued.

The basis of a right issued to a common shareholder will be zero, and the basis of the share with respect to which the subscription right was issued (the old share) will remain unchanged, unless either (a) the fair market value of the right on the date of distribution is at least 15% of the fair market value of the old share, or (b) such shareholder affirmatively elects (in the manner set out in Treasury regulations under the Code) to allocate to the subscription right a portion of the basis of the old share. If either (a) or (b) applies, then except as described below such shareholder must allocate basis between the old share and the right in proportion to their fair market values on the date of distribution.

The basis of a right purchased in the market will generally be its purchase price.

The holding period of a right issued to a common shareholder will include the holding period of the old share. No gain or loss will be recognized by a common shareholder upon the exercise of a right.

No loss will be recognized by a common shareholder if a right distributed to such common shareholder expires unexercised because the basis of the old share may be allocated to a right only if the right is exercised. If a right that has been purchased in the market expires unexercised, there will be a recognized loss equal to the basis of the right.

Any gain or loss on the sale of a right will be a capital gain or loss if the right is held as a capital asset (which in the case of rights issued to common shareholders will depend on whether the old share of common stock is held as a capital asset), and will be a long-term capital gain or loss if the holding period is deemed to exceed one year.

CERTAIN PROVISIONS IN THE CHARTER AND BYLAWS

The Fund’s Charter includes provisions that could have the effect of limiting the ability of other entities or persons to acquire control of the Fund or to change the composition of its Board of Directors and could have the effect of depriving common shareholders of an opportunity to sell their shares at a premium over prevailing market prices by discouraging a third-party from seeking to obtain control of the Fund. The Fund’s Charter provides that a Director may be removed from office only for cause by vote of the holders of at least 75% of the shares entitled to vote in an election of directors. The Fund’s Charter also requires the favorable vote of the holders of at least 75% of the Fund’s shares entitled to vote on the matter to amend or repeal certain provisions of the Charter.

In addition, conversion of the Fund to an open-end investment company would require an amendment to the Fund’s Charter. The amendment would have to be declared advisable by the Board of Directors (pursuant to a favorable vote of a majority of the directors) prior to its submission to shareholders. Such an amendment would require the favorable vote of the holders of at least 75% of the Fund’s outstanding shares of capital stock entitled to be voted on the matter, voting as a single class. Such a vote also would satisfy a separate requirement in the Investment Company Act that the change be approved by the shareholders. Shareholders of an open-end investment company may require the company to redeem their common shares at any time (except in certain circumstances as authorized by or under the Investment Company Act) at their NAV, less such redemption charge, if any, as might be in effect at the time of a redemption. If the Fund is converted to an open-end investment company, it could be required to liquidate portfolio securities to meet requests for redemption, and the common shares would no longer be listed on a stock exchange.

The Charter and Bylaws provide that the Board of Directors has the power, to the exclusion of shareholders, to make, alter or repeal any of the Bylaws (except for any Bylaw specified not to be amended or repealed by the Board), subject to the requirements of the Investment Company Act. Neither this provision of the Charter, nor any of the foregoing provisions of the Charter requiring the affirmative vote of 75% of shares of capital stock of the Fund, can be amended or repealed except by the vote of such required number of shares.

The Board of Directors has determined that the 75% voting requirements described above, which are greater than the minimum requirements under Maryland law or the Investment Company Act, are in the best interests of

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shareholders generally. Reference should be made to the Charter on file with the SEC for the full text of these provisions.

Pursuant to a provision in the Charter, the Fund has elected to be subject to the Maryland Business Combination Act, which prohibits any business combination between the Fund and any beneficial owner, directly or indirectly, of 10% or more of the voting power of the outstanding voting stock of the Fund (but only to the extent, and if so after the date on which, the Fund had 100 or more beneficial owners), any affiliate or associate of the Fund that was the beneficial owner, directly or indirectly of 10% or more of the voting power of the then outstanding stock of the Fund at any time within the two-year period immediately prior to the date in question, subject to certain exceptions, and which may discourage third parties from trying to acquire control of the Fund and increase the difficulty of consummating such an offer.

The Fund has elected to be subject to the Maryland Control Share Acquisition Act (the “MCSAA”). In general, the MCSAA limits the ability of holders of “control shares” to vote those shares above various threshold levels that start at 10% unless the other shareholders of the Fund reinstate those voting rights at a meeting of shareholders as provided in the MCSAA. “Control shares” are generally defined in the MCSAA as shares of stock that, if aggregated with all other shares of stock that are either (i) owned by a person or (ii) as to which that person is entitled to exercise or direct the exercise of voting power, except solely by virtue of a revocable proxy, would entitle that person to exercise voting power in electing directors above various thresholds of voting power starting at 10%. The Bylaws also provide that the provisions of the MCSAA shall not apply to the voting rights of the holders of any shares of preferred stock of the Fund (but only with respect to such preferred stock). On December 5, 2023, the U.S. District Court for the Southern District of New York granted judgment in favor of a plaintiff’s claim for rescission of resolutions by eleven closed-end funds that are Maryland corporations and statutory trusts, including certain BlackRock-sponsored funds domiciled in Maryland, that “opted in” to elect to be subject to the MCSAA. The district court declared that the funds’ elections violate Section 18(i) of the Investment Company Act. The funds appealed the district court’s decision to the U.S. Court of Appeals for the Second Circuit, which affirmed the district court’s decision.

The Fund’s Bylaws generally require that advance notice be given to the Fund in the event a shareholder desires to nominate a person for election to the Board of Directors or to transact any other business at an annual meeting of shareholders. Notice of any such nomination or business must be delivered to or received at the principal executive offices of the Fund not less than 120 calendar days nor more than 150 calendar days prior to the anniversary date of the prior year’s annual meeting (subject to certain exceptions). Any notice by a shareholder must be accompanied by certain information as provided in the Bylaws.

The Maryland General Corporation Law provides that a Maryland corporation that has a class of securities registered under the Exchange Act and has at least three outside directors can elect to be subject to certain corporate governance provisions that may be inconsistent with the corporation’s charter or bylaws. Under the applicable statute, a board of directors may classify itself without the vote of shareholders. Further, the board of directors may, by electing into applicable statutory provisions and notwithstanding the charter or bylaws, (i) reserve for itself the right to fix the number of directors; (ii) retain for itself sole authority to fill vacancies created by an increase in the size of the board of directors or the death, removal or resignation of a director; and (iii) provide that all vacancies on the board of directors may be filled only by the affirmative vote of a majority of the remaining directors, in office, even if the remaining directors do not constitute a quorum. Any director elected to fill such vacancy shall hold office for the remainder of the unexpired term and until his or her successor is elected and qualified. A board of directors may implement all or any of these provisions without amending the charter or bylaws and without shareholder approval. A corporation may be prohibited by its charter or by resolution of its board of directors from electing any of the provisions of the statute. The Fund is not prohibited from implementing any or all of the statute.

Pursuant to the Fund’s Charter, the Board of Directors is already classified into three classes serving staggered three-year terms, and pursuant to the Fund’s Bylaws, the Fund has elected to be subject to a specific provision of the statute such that, at all times that the Fund is eligible to make that election, all vacancies on the Board of Directors resulting from an increase in the size of the Board or the death, resignation or removal of a Director, may be filled only by the affirmative vote of a majority of the remaining Directors, even if the remaining Directors do not constitute a quorum.

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Certain “disqualified organizations,” as described above in “Tax Matters”, are not permitted to own Fund shares. The Fund’s Charter provides that any purchase or transfer of any of its shares to any such entity is void and that any shares purportedly transferred to any such entity and retained by it are subject to repurchase by the Fund at the lesser of market value or net asset value at the time of repurchase.

CLOSED-END FUND STRUCTURE

The Fund is a diversified, closed-end management investment company (commonly referred to as a closed-end fund). Closed-end funds differ from open-end funds (which are generally referred to as mutual funds) in that closed-end funds generally list their shares for trading on a stock exchange and do not redeem their shares at the request of the shareholder. This means that if you wish to sell your shares of a closed-end fund you must trade them on the stock exchange like any other stock at the prevailing market price at that time. In a mutual fund, if the shareholder wishes to sell shares of the fund, the mutual fund will redeem or buy back the shares at NAV. Also, mutual funds generally offer new shares on a continuous basis to new investors and closed-end funds generally do not. The continuous inflows and outflows of assets in a mutual fund can make it difficult to manage the fund’s investments. By comparison, closed-end funds are generally able to stay more fully invested in securities that are consistent with their investment objectives and also have greater flexibility to make certain types of investments and to use certain investment strategies, such as financial leverage and investments in illiquid securities.

Shares of closed-end funds frequently trade at a discount to their NAV. Because of this possibility and the recognition that any such discount may not be in the interest of shareholders, the Board might consider from time to time engaging in open-market repurchases, tender offers for shares or other programs intended to reduce the discount. We cannot guarantee or assure, however, that the Board will decide to engage in any of these actions. Nor is there any guarantee or assurance that such actions, if undertaken, would result in the shares trading at a price equal or close to the NAV per share. See “Repurchase of Common Shares” below and “Repurchase of Common Shares” in the SAI. The Board might also consider converting the Fund to an open-end mutual fund, which would also require a vote of the shareholders of the Fund.

REPURCHASE OF COMMON SHARES

Shares of closed-end investment companies often trade at a discount to their NAVs and the Fund’s common shares may also trade at a discount to their NAV, although it is possible that they may trade at a premium above NAV. The market price of the Fund’s common shares will be determined by such factors as relative demand for and supply of such common shares in the market, the Fund’s NAV, general market and economic conditions, market sentiment and other factors beyond the control of the Fund. See “Net Asset Value” and “Description of Capital Stock—Common Shares.” Although the Fund’s common shareholders will not have the right to redeem their common shares, the Fund may take action to repurchase common shares in the open market or make tender offers for its common shares. This may have the effect of reducing any market discount from NAV.

There is no assurance that, if action is undertaken to repurchase or tender for common shares, such action will result in the common shares’ trading at a price which approximates their NAV. Although share repurchases and tender offers could have a favorable effect on the market price of the Fund’s common shares, you should be aware that the acquisition of common shares by the Fund will decrease the capital of the Fund and, therefore, may have the effect of increasing the Fund’s expense ratio and decreasing the asset coverage with respect to any borrowings or preferred shares outstanding. Any share repurchases or tender offers will be made in accordance with the requirements of the Securities Exchange Act of 1934, as amended, the Investment Company Act and the principal stock exchange on which the common shares are traded. For additional information, see “Repurchase of Common Shares” in the SAI.

PLAN OF DISTRIBUTION

We may sell common shares, including to existing shareholders in a rights offering, through underwriters or dealers, directly to one or more purchasers (including existing shareholders in a rights offering), through agents, to or through underwriters or dealers, or through a combination of any such methods of sale. The applicable Prospectus Supplement will identify any underwriter or agent involved in the offer and sale of our common shares, any sales loads, discounts, commissions, fees or other compensation paid to any underwriter, dealer or agent, the offering price, net proceeds and use of proceeds and the terms of any sale. In the case of a rights offering, the applicable

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Prospectus Supplement will set forth the number of our common shares issuable upon the exercise of each right and the other terms of such rights offering.

The distribution of our common shares may be effected from time to time in one or more transactions at a fixed price or prices, which may be changed, at prevailing market prices at the time of sale, at prices related to such prevailing market prices, or at negotiated prices. Sales of our common shares may be made in transactions that are deemed to be “at the market” as defined in Rule 415 under the Securities Act, including sales made directly on the NYSE or sales made to or through a market maker other than on an exchange.

We may sell our common shares directly to, and solicit offers from, institutional investors or others who may be deemed to be underwriters as defined in the Securities Act for any resales of the securities. In this case, no underwriters or agents would be involved. We may use electronic media, including the Internet, to sell offered securities directly.

In connection with the sale of our common shares, underwriters or agents may receive compensation from us in the form of discounts, concessions or commissions. Underwriters may sell our common shares to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents. Underwriters, dealers and agents that participate in the distribution of our common shares may be deemed to be underwriters under the Securities Act, and any discounts and commissions they receive from us and any profit realized by them on the resale of our common shares may be deemed to be underwriting discounts and commissions under the Securities Act. Any such underwriter or agent will be identified and any such compensation received from us will be described in the applicable Prospectus Supplement. The maximum amount of compensation to be received by any Financial Industry Regulatory Authority member or independent broker-dealer will not exceed eight percent for the sale of any securities being offered pursuant to Rule 415 under the Securities Act. We will not pay any compensation to any underwriter or agent in the form of warrants, options, consulting or structuring fees or similar arrangements.

If a Prospectus Supplement so indicates, we may grant the underwriters an option to purchase additional common shares at the public offering price, less the underwriting discounts and commissions, within 45 days from the date of the Prospectus Supplement, to cover any over-allotments.

Under agreements into which we may enter, underwriters, dealers and agents who participate in the distribution of our common shares may be entitled to indemnification by us against certain liabilities, including liabilities under the Securities Act. Underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business.

If so indicated in the applicable Prospectus Supplement, we will ourselves, or will authorize underwriters or other persons acting as our agents to solicit offers by certain institutions to purchase our common shares from us pursuant to contracts providing for payment and delivery on a future date. Institutions with which such contacts may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and others, but in all cases such institutions must be approved by us. The obligation of any purchaser under any such contract will be subject to the condition that the purchase of the common shares shall not at the time of delivery be prohibited under the laws of the jurisdiction to which such purchaser is subject. The underwriters and such other agents will not have any responsibility in respect of the validity or performance of such contracts. Such contracts will be subject only to those conditions set forth in the Prospectus Supplement, and the Prospectus Supplement will set forth the commission payable for solicitation of such contracts.

To the extent permitted under the Investment Company Act and the rules and regulations promulgated thereunder, the underwriters may from time to time act as brokers or dealers and receive fees in connection with the execution of our portfolio transactions after the underwriters have ceased to be underwriters and, subject to certain restrictions, each may act as a broker while it is an underwriter.

A Prospectus and accompanying Prospectus Supplement in electronic form may be made available on the websites maintained by underwriters. The underwriters may agree to allocate a number of securities for sale to their online brokerage account holders. Such allocations of securities for Internet distributions will be made on the same basis as

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other allocations. In addition, securities may be sold by the underwriters to securities dealers who resell securities to online brokerage account holders.

In order to comply with the securities laws of certain states, if applicable, our common shares offered hereby will be sold in such jurisdictions only through registered or licensed brokers or dealers.

INCORPORATION BY REFERENCE

This Prospectus is part of a registration statement that we have filed with the SEC. We are allowed to “incorporate by reference” the information that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. We incorporate by reference into this Prospectus the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, including any filings on or after the date of this Prospectus from the date of filing (excluding any information furnished, rather than filed), until we have sold all of the offered securities to which this Prospectus and any accompanying prospectus supplement relates or the offering is otherwise terminated. The information incorporated by reference is an important part of this Prospectus. Any statement in a document incorporated by reference into this Prospectus will be deemed to be automatically modified or superseded to the extent a statement contained in (1) this Prospectus or (2) any other subsequently filed document that is incorporated by reference into this Prospectus modifies or supersedes such statement. The documents incorporated by reference herein include:

•

the Fund’s SAI, dated [●], 2025, filed with this Prospectus;

•

the Fund’s annual report on Form N-CSR for the fiscal year ended December 31, 2024, filed with the SEC on March 7, 2025; and

•

the Fund’s Current Report on Form 8-K (other than information furnished rather than filed) filed with the SEC on January 21, 2025.

The Fund will provide without charge to each person, including any beneficial owner, to whom this Prospectus is delivered, upon written or oral request, a copy of any and all of the documents that have been or may be incorporated by reference in this Prospectus or the accompanying prospectus supplement. You should direct requests for documents by calling:

Client Services Desk

(800) 882-0052

The Fund makes available this Prospectus, SAI and the Fund’s annual and semi-annual reports, free of charge, at http://www.blackrock.com. You may also obtain this Prospectus, the SAI, other documents incorporated by reference and other information the Fund files electronically, including reports and proxy statements, on the SEC website (http://www.sec.gov) or with the payment of a duplication fee, by electronic request at [email protected]. Information contained in, or that can be accessed through, the Fund’s website is not incorporated by reference into this Prospectus and should not be considered to be part of this Prospectus or the accompanying prospectus supplement.

PRIVACY PRINCIPLES OF THE FUND

The Fund is committed to maintaining the privacy of shareholders and to safeguarding their non-public personal information. The following information is provided to help you understand what personal information the Fund collects, how we protect that information, and why in certain cases we may share such information with select other parties.

The Fund does not receive any non-public personal information relating to its shareholders who purchase shares through their broker-dealers. In the case of shareholders who are record holders of the Fund, the Fund receives personal non-public information on account applications or other forms. With respect to these shareholders, the Fund also has access to specific information regarding their transactions in the Fund.

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	Year Ended 12/31/24		Year Ended 12/31/23		Year Ended 12/31/22		Year Ended 12/31/21		Year Ended 12/31/20

Portfolio turnover rate (excluding MDRs)		133%		106%		122%		119%		31%