2026-04-08ABAberdeenMunicipalHighIncomeETF_FYE_01_31


American Beacon Aberdeen Municipal High Income ETF^SM

Investment Objective

The Fund’s investment objective is to seek to provide a high level of current income that is not subject to federal income tax.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

Shareholder Fees (fees paid directly from your investment)


Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)

Management Fees	0.55%
Distribution and/or Service (12b-1) Fees¹	0.00%
Other Expenses²	0.00%
Total Annual Fund Operating Expenses	0.55%

Pursuant to a Distribution Plan, the Fund may bear a Rule 12b-1 fee not to exceed 0.25% per year of the Fund’s average daily net assets. However, no such fee is currently paid by the Fund, and the Board of Trustees has not currently approved the commencement of any payments under the Distribution Plan.

2	Other Expenses are based on estimated expenses for the current fiscal year.

Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, whether you redeem or hold your shares, your costs would be:


	1 Year	3 Years
	$56	$176

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or ‘‘turns over’’ its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund’s performance. The Fund’s portfolio turnover rate for the Fund’s most recent fiscal year is not provided because the Fund had not commenced operations prior to the date of this Prospectus.

Principal Investment Strategies

Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in a diversified portfolio of tax-exempt municipal bonds. Municipal bonds are obligations issued by or on behalf of states, territories and possessions of the United States (including the District of Columbia, Puerto Rico, the U.S. Virgin Islands, and Guam), their political subdivisions - such as cities and counties - and their agencies or authorities to finance public-purpose projects. All investments in the Fund are denominated in U.S. dollars. The interest on municipal bonds is excludable from gross income for federal income tax purposes, although a significant portion of such interest may be a tax-preference item for purposes of the federal alternative minimum tax (the “AMT”) applicable to noncorporate taxpayers. Municipal bonds subject to AMT are considered tax-exempt municipal bonds for purposes of the Fund’s 80% policy.

The Fund typically invests in medium- and lower-quality bonds rated BBB+ or lower by S&P Global Ratings (“S&P”), comparably rated by another nationally recognized statistical rating organization (“NRSRO”), or, if unrated, determined by abrdn Inc. (the “sub-advisor”) to be of comparable quality. The Fund’s investments primarily include non-investment-grade debt securities (commonly referred to as “high yield” or “junk” bonds), which are rated BB+ or lower by S&P, comparably rated by another NRSRO, or, if unrated, determined by the sub-advisor to be of comparable quality. If a bond is rated differently among NRSROs (commonly referred to as ”split-rated”), the sub-advisor can consider the bond to have the higher credit rating. The Fund may invest an unlimited amount of its total assets in non-investment-grade debt securities. Although the sub-advisor considers credit ratings in selecting investments for the Fund, it makes investment decisions based on its own credit analysis rather than an NRSRO’s credit rating. In making such evaluations, the sub-advisor considers, among other attributes, the issuer’s financial resources and operating history; its sensitivity to economic conditions and trends; its debt maturity schedules and borrowing requirements; and the relative value of the investment based on anticipated cash flows, interest- and asset-coverage metrics. To a lesser extent, the Fund may also invest in higher-quality municipal bonds when yield spreads are narrow and the sub-advisor believes that the higher yields available in lower-quality bonds do not compensate for the increased risk, or when, in the opinion of the sub-advisor, there is a lack of medium- and lower-quality bonds in which to invest.

The sub-advisor determines the desired duration and maturity profile of the Fund’s holdings based on its view of interest rates. The Fund may invest in instruments of any maturity, although it will generally seek instruments with remaining maturities of 5 to 30 years.

In selecting investments for the Fund, the sub-advisor begins with top-down macro themes, including sector outlook, geographic strength, economic conditions, interest rate expectations, and credit spread dynamics. Within these macro views, the sub-advisor seeks to capture a broad range of credit opportunities through bottom-up fundamental research, evaluating factors such as debt profile, liquidity, profitability, management quality, security and covenant protections, and socioeconomic trends, among other factors. The sub-advisor generally emphasizes yield-oriented opportunities to help maximize the Fund’s tax efficiency and minimize taxable capital gains. In constructing the portfolio, the sub-advisor also monitors state- and sector-level exposures and single issuer allocations as it seeks to manage concentration risk and maintain diversification. The Fund does not expect to concentrate its investments in any single state, territory, possession or industry.

Municipal bonds in which the Fund may invest include, but are not limited to, revenue bonds, general obligation bonds, auction rate securities, private activity bonds (“PABs”), moral obligation bonds, municipal notes, municipal commercial paper, municipal lease obligations and tender-option bonds.

Revenue bonds are payable only from specific sources, such as the revenue from a particular project, special taxes, certain lease payments, or other appropriated funds. Revenue bonds may include private-activity bonds (or “PABs”) that finance private initiatives, such as housing bonds that finance pools of single-family mortgages; student-loan bonds that finance student loans; education bonds that finance charter schools; and health care bonds that finance hospitals and other medical facilities. Revenue bonds may be issued as commercial paper, notes, lease obligations, or tender-option bonds. A moral obligation bond is a revenue-backed instrument where a state or municipality “morally” – but not legally – pledges to appropriate funds to replenish a debt service reserve fund if projected revenues fall short. A municipal lease obligation is issued to finance the acquisition of equipment and facilities. A municipal tender-option bond is a structured product that divides a bond into short-term, floating-rate certificates with a tender option and longer-term, inverse floating-rate securities. The Fund will invest in tender-option floaters and is not expected to hold inverse floaters. The Fund may have significant exposure to the Health Care and Education sectors. Health Care includes industries such as hospitals, hospital districts, continuing care retirement communities, nursing homes, and assisted living, among others. Education includes charter schools, school districts, and higher education facilities, among others. However, as the sector composition of the Fund’s portfolio changes over time, the Fund’s exposure to the Health Care and Education sectors may decline, and the Fund’s exposure to other market sectors may increase.

The debt securities held by the Fund may be in the form of general obligation bonds, debentures, zero-coupon securities, and callable securities. A general obligation bond is secured by the full faith and credit of its issuer, while a debenture is unsecured. A zero-coupon security does not make periodic interest payments. A callable security may be redeemed, or called, by the issuer prior to maturity date, ceasing interest payments. The Fund can invest in securities that are not registered with the Securities and Exchange Commission and thus restricted in their ability to be traded.

In determining whether to sell a security, the sub-advisor uses similar analysis as it employs when purchasing securities. The analysis generally begins with an outlook on the credit quality and relative value of the instrument followed by macroeconomic and sector-related considerations. Securities may also be sold to rebalance the Fund’s holdings, to take advantage of more attractive investment opportunities, or to raise cash.

Principal Risks

There is no assurance that the Fund will achieve its investment objective, and you could lose part or all of your investment in the Fund. The Fund is not designed for investors who need an assured level of current income and is intended to be a long-term investment. The Fund is not a complete investment program and may not be appropriate for all investors. Investors should carefully consider their own investment goals and risk tolerance before investing in the Fund. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the Fund.

Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Fund or its service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. The Fund cannot control the cybersecurity and operational plans and systems of its service providers, its counterparties or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.

Debentures Risk
Debentures are unsecured debt securities. The holder of a debenture is protected only by the general creditworthiness of the issuer. The Fund may invest in both corporate and government debentures.

Exchange-Traded Funds (“ETFs”) Risk
As an ETF, the Fund is subject to the following risks:

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Authorized Participants Concentration Risk. The Fund has a limited number of financial institutions that may act as authorized participants (i.e., large institutions that have entered into agreements with the distributor of the Fund’s shares and are authorized to transact in Creation Units (described below) with the Fund) (“Authorized Participants”). Only an Authorized Participant may transact in Creation Units directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. To the extent they exit the business or are otherwise unable to proceed in creation and redemption transactions with the Fund and no other Authorized Participant is able to step forward to create or redeem shares, then shares of the Fund may be more likely to trade at a premium or discount to net asset value (“NAV”) and possibly face trading halts or delisting. Authorized Participant concentration risk may be heightened for ETFs that invest in securities or instruments that have lower trading volumes.

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Cash Transactions Risk. Like other ETFs, the Fund sells and redeems its shares primarily in large blocks called “Creation Units” and only to Authorized Participants. Unlike many other ETFs, however, the Fund expects to effect its creations and redemptions at least partially or fully for cash, rather than in-kind

securities. Thus, an investment in the Fund may be less tax-efficient than an investment in other ETFs as the Fund may recognize a capital gain that it could have avoided by making redemptions in-kind. As a result, the Fund may pay out higher capital gains distributions than ETFs that redeem in-kind. Further, paying redemption proceeds in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio investments to obtain the cash needed to distribute redemption proceeds at an inopportune time.

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Premium/Discount Risk. There may be times when the market price of the Fund’s shares is more than its NAV (at a premium) or less than its NAV (at a discount). As a result, shareholders of the Fund may pay more than NAV when purchasing shares and receive less than NAV when selling Fund shares. This risk is heightened in times of market volatility or periods of steep market declines. In such market conditions, market or stop loss orders to sell Fund shares may be executed at prices well below NAV.

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High-Yield Securities Risk
Exposure to high-yield, below investment-grade securities (commonly referred to as “junk bonds”) generally involves significantly greater risks than an investment in investment grade securities. High-yield debt securities may fluctuate more widely in price and yield and may fall in price when the economy is weak or expected to become weak. These securities also may be difficult to sell at the time and price the Fund desires. High-yield securities are considered to be speculative with respect to an issuer’s ability to pay interest and principal and carry a greater risk that the issuers of lower-rated securities will default on the timely payment of principal and interest. High-yield securities may experience greater price volatility and less liquidity than investment grade securities. Issuers of securities that are in default or have defaulted may fail to resume principal or interest payments, in which case the Fund may lose its entire investment.

Interest Rate Risk
Generally, the value of investments with interest rate risk, such as fixed-income securities, will move in the opposite direction as movements in interest rates. Factors including central bank monetary policy, rising inflation rates, and changes in general economic conditions may cause interest rates to rise, which could cause the value of the Fund’s investments to decline. Interest rate increases, including significant or rapid increases, may result in a decline in the value of bonds held by the Fund, make issuers less willing or able to make principal and interest payments on fixed-income investments when due, lead to heightened volatility in the fixed-income markets and adversely affect the liquidity of certain fixed-income investments, any of which may result in substantial losses to the Fund. When interest rates decline, issuers may prepay higher-yielding securities held by the Fund, resulting in the Fund reinvesting in securities with lower yields, which may cause a decline in its income. The prices of fixed-income securities are also affected by their durations. Fixed-income securities with longer durations generally have greater sensitivity to changes in interest rates than those with shorter durations. Rising interest rates may cause the value of the Fund’s investments with longer durations and terms to maturity to decline, which may adversely affect the value of the Fund. For example, if a bond has a duration of 8 years, a 1% increase in interest rates could be expected to result in an 8% decrease in the value of the bond. Fluctuations in interest rates may also affect the liquidity of fixed income securities and instruments held by the Fund.

Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.

Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets.

Liquidity Risk
The Fund is susceptible to the risk that certain investments held by the Fund may have limited marketability, be subject to restrictions on sale, be difficult or impossible to purchase or sell at favorable times or prices or become less liquid in response to market developments or adverse credit events that may affect issuers or guarantors of a security. An inability to sell a portfolio position can adversely affect the Fund’s value or prevent the Fund from being able to take advantage of other investment opportunities. Market prices for such instruments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses. The Fund could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund. The Fund may be required to dispose of investments at unfavorable times or prices to satisfy obligations, which may result in losses or may be costly to the Fund. For example, liquidity risk may be magnified in rising interest rate environments in the event of higher than normal redemption rates. Judgment plays a greater role in pricing illiquid investments than in investments with more active markets.

Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations. During a general downturn in the securities markets, multiple asset classes may decline in value simultaneously. Even when certain securities prices have generally increased over time, there have been periods of price decreases during those times, resulting in losses for investors, which are likely to occur again in the future.

Geopolitical and other events, including war, terrorism, trade disputes, pandemics, public health crises, natural disasters, and cybersecurity incidents, have led, and in the future may continue to lead, to general instability in world economies and markets and reduced liquidity in securities, which may negatively affect the value of your investment.

Markets and market participants are increasingly reliant upon public and proprietary data and systems. Data or technology malfunctions and inaccuracies may disrupt markets and lead to negative consequences for market participants like the Fund.

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Municipal Securities Risk
Municipal securities could be affected by adverse political and legislative changes. The ability of a municipal issuer to make payments can be affected by uncertainties in the municipal securities market, including: litigation; the strength of the local or national economy; the issuer’s ability to raise revenues through tax or other means; budgetary constraints of local, state and federal governments upon which the issuer may be relying for funding; a legislature’s willingness or ability to appropriate funds needed to pay municipal securities obligations; the bankruptcy of the issuer; adverse political and legislative changes, including to eliminate or limit the tax-exempt status of municipal bond interest or dividends; and other changes in the financial condition of a municipality. At times, municipal issuers have defaulted on obligations or commenced insolvency proceedings. Financial difficulties of municipal issuers may continue or get worse in the future. Reductions in tax rates may make municipal securities less attractive in comparison to taxable bonds. In addition, the Fund’s investments in municipal securities are subject to the following risks:

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Auction Rate Securities Risk. Auction rate securities are bonds whose interest rates are set at specified intervals through an auction process where all holders of the auction rate securities receive the same rate. Holders of auction rate securities rely on the liquidity generated by the auction, and there is a risk that an auction will fail due to insufficient demand for the securities. If an auction fails, an auction rate security may become illiquid until a subsequent successful auction is conducted, the issuer redeems the issue, or a secondary market develops.

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General Obligation Bonds Risk. A general obligation bond is secured by the full faith, credit and taxing power of the issuing municipality, not revenues from a specific project or source. Consequently, timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base. A municipality in which the Fund invests may experience significant financial difficulties, including bankruptcy or default, which may negatively impact the Fund.

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Municipal Commercial Paper and Notes Risk. Municipal commercial paper and notes are unsecured short-term obligations issued by a state or municipality. These usually are general obligations of the issuer and are sold in anticipation of a bond sale, collection of taxes, or receipt of other revenues. Payment of these is dependent upon the issuer’s receipt of the anticipated revenues.

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Municipal Lease Obligations Risk. Municipal lease obligations typically are not fully backed by a municipality’s credit and thus interest thereon may become taxable if the lease is assigned, which may reduce the value of the Fund’s investment. While the issuer does not pledge its taxing power for payment of the lease obligation, the lease obligation is secured by the leased property. However, if the issuer of a lease obligation does not fulfill its payment obligation, it may be difficult to sell the property, and the proceeds of a sale may not cover the loss incurred by the Fund.

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Private Activity Bonds Risk. The issuers of private activity bonds in which the Fund may invest may be negatively impacted by conditions affecting either the general credit of the user of the private activity project or a project itself. The Fund’s private activity bond holdings also may pay interest subject to the alternative minimum tax. See the section of the Prospectus entitled “About Your Investment-Distributions and Taxes” for more details.

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Revenue Obligations Risk. Payments of interest and principal on revenue obligations are made only from the revenues generated by a particular facility or class of facilities or the proceeds of a special tax or other revenue source. These payments depend on the money earned by the particular facility or class of facilities, or the amount of revenues derived from another source. Revenue obligations are not a debt or liability of the local or state government and do not obligate that government to levy or pledge any form of taxation or to make any appropriation for payment.

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Moral Obligation Bonds Risk. A moral obligation bond is a type of revenue bond with a non-binding commitment by the state or municipality to pay principal and interest if revenues from a project are insufficient to make such payments. There is a risk that the state or municipality may not approve such payments or may delay such payments since there is no legal obligation by the state or municipality to make such payments.

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Tender-Option Bond Floaters Risk. Tender option bond floaters are created when municipal bonds are deposited into a trust or other special purpose vehicle, which issues two classes of certificates with varying economic interests one of which is tender option bond floaters. These are floating rate certificates that receive tax-exempt interest based on short-term rates and its holders may tender the certificates to the trust at face value. Investments in tender option bond floaters expose the Fund to variable and floating rate securities risk. A trust may be terminated if, for example, the issuer of the underlying bond defaults on interest payments or the credit rating assigned to the issuer of the underlying bond is downgraded.

New Fund Risk
The Fund had not commenced operations prior to the date of this Prospectus. The current performance of the Fund may not represent how it is expected to, or may, perform in the long term if and when it becomes larger and has fully implemented its investment strategies. Investment positions may have a disproportionate impact (negative or positive) on the Fund’s performance. The Fund may also require a period of time before it is invested in securities that meet its investment objectives and policies and achieves a representative portfolio composition. Fund performance may be lower or higher during this “ramp-up” period, and may also be more volatile, than would be the case after the Fund is fully invested. Similarly, the Fund’s investment strategies may require a longer period of time to show returns that are representative of the strategies. As a new ETF, the Fund may experience low trading volume and wide bid-ask spreads.

Restricted Securities Risk
Securities not registered in the U.S. under the Securities Act of 1933, as amended (the “Securities Act”), or in non-U.S. markets pursuant to similar regulations, including “Section 4(a)(2)” securities and “Rule 144A” securities, are restricted as to their resale. Such securities may not be listed on an exchange and may have no active trading market. The prices of these securities may be more difficult to determine than publicly traded securities and these securities may involve heightened risk as compared to investments in securities of publicly traded companies. They may be more difficult to purchase or sell at an advantageous time or price because such securities may not be readily marketable in broad public markets or may have to be held for a certain time period before they can be resold. The Fund may not be able to sell a restricted security when the sub-advisor considers it desirable to do so and/or may have to sell the security at a lower price than the Fund believes is its fair market value. In addition, transaction costs may be higher for restricted securities and the Fund may receive only limited information regarding the issuer of a restricted security. The Fund may have to bear the expense of registering restricted securities for resale and the risk of substantial delays in effecting the registration.

Sector Risk
When the Fund focuses its investments in certain sectors of the economy, its performance could fluctuate more widely than if the Fund were invested more evenly across sectors. Issuers in the same economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. Additionally, individual sectors may be more volatile, and may perform differently, than the broader market. As the Fund’s portfolio changes over time, the Fund’s exposure to a particular sector may become higher or lower.

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Education Sector Risk. The Fund may invest a significant portion of its assets in education bonds. In general, there are two types of bonds that are associated with the education sector: those that are issued to finance projects for public and private colleges and universities, and those that represent pooled interests in student loans. Bonds issued to supply educational institutions with funds are subject to the risk of unanticipated revenue decline, primarily the result of decreasing student enrollment or decreased state and federal funding. Factors that may lead to declining or insufficient revenues include restrictions on students’ ability to pay tuition, availability of state and federal funding, and general economic conditions. Student loan revenue bonds are generally offered by state (or sub-state) authorities or commissions and are backed by pools of student loans. Risks associated with student loan revenue bonds include rate of student loan defaults, seasoning of the loan portfolio, student repayment deferral periods of forbearance, potential changes in federal legislation, state guarantee agency reimbursements, and continued federal interest and other program subsidies currently in effect.

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Health Care Sector Risk. The Fund may invest in bonds issued by state or local authorities that are secured by the revenues of health care facilities, including life care facilities, nursing homes and hospitals. A major source of revenue for the health care industry is payments from Medicare and Medicaid programs, and the industry is sensitive to legislative changes and reductions in governmental spending for such programs. Other factors that may affect the health care sector and the value and credit quality of health care bonds include general and local economic conditions, demand for services, expenses (including malpractice insurance premiums), and competition among health care providers. Health care facility operations may be adversely affected by national or state-specific health insurance exchanges; other national, state, or local health care reforms; medical and technological advances that may alter the need for health services or how such health services are delivered; changes in medical coverage altering the traditional fee-for-service revenue stream; efforts to reduce the costs of health insurance and health-care services; and increases and decreases in the cost and availability of medical products.

Secured, Partially Secured and Unsecured Obligation Risk
Debt obligations may be secured, partially secured or unsecured. Interests in secured and partially-secured obligations have the benefit of collateral and, typically, of restrictive covenants limiting the ability of the borrower to further encumber its assets. However, there is no assurance that the liquidation of collateral from a secured or partially-secured obligation would satisfy the borrower’s obligation, or that the collateral can be liquidated. Furthermore, there is a risk that the value of any collateral securing an obligation in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the obligation. In the event the borrower defaults, the Fund’s access to the collateral may be limited or delayed by bankruptcy or other insolvency laws. Unsecured debt, including senior unsecured and subordinated debt, will not be secured by any collateral and will be effectively subordinated to a borrower’s secured indebtedness (to the extent of the collateral securing such indebtedness). With respect to unsecured obligations, the Fund lacks any collateral on which to foreclose to satisfy its claim in whole or in part. Such instruments generally have greater price volatility than that of fully secured holdings and may be less liquid.

Securities Selection Risk
Securities selected for the Fund may not perform to expectations. This could result in the Fund’s underperformance compared to its performance index(es), or other funds with similar investment objectives or strategies.

Tax and Political Risk
There is no guarantee that the Fund’s income will be exempt from U.S. federal income taxes and the federal AMT. The sub-advisor relies on prospectus disclosure of the tax opinion from the bond issuer’s counsel as to the tax-exempt status of the investment. None of the Manager, the sub-advisor or the Fund guarantees that these opinions are correct, and there is no assurance that the U.S. Internal Revenue Service (“IRS”) will agree with the bond issuer’s counsel’s tax opinion. Interest payments from a security could become federally taxable, possibly retroactively to the date the security was issued, and the security could decline significantly in value. The interest on any money market instruments or other cash equivalents held by a Fund may be subject to federal, state and local income taxation and the federal Medicare contribution tax.

A significant restructuring of federal income tax rates, or even serious discussion on the topic in Congress, could cause municipal bond prices to fall. The demand for municipal securities is strongly influenced by the value of tax-exempt income to investors. Lower income tax rates could reduce the advantage of owning municipal securities.

may not accurately evaluate the security’s comparative credit rating. Some unrated securities may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price. Unrated securities may be subject to greater liquidity risk and price volatility.

Valuation Risk
Certain of the Fund’s assets may be valued at a price different from the price at which they can be sold. This risk may be especially pronounced for investments that are illiquid or may become illiquid, or securities that trade in relatively thin markets and/or markets that experience extreme volatility. The valuation of the Fund’s investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents.

Variable and Floating Rate Securities Risk
The coupons on variable and floating-rate securities are not fixed and may fluctuate based upon changes in market rates. A variable rate security has a coupon that is adjusted at pre-designated periods in response to changes in the market rate of interest on which the coupon is based. The coupon on a floating rate security is generally based on an interest rate, such as a money-market index, Secured Overnight Financing Rate (“SOFR”), or a Treasury bill rate. Variable and floating rate securities are subject to interest rate risk and credit risk. As short-term interest rates decline, the coupons on variable and floating-rate securities typically decrease. Alternatively, during periods of rising short-term interest rates, the coupons on variable and floating-rate securities typically increase. Changes in the coupons of variable and floating-rate securities may lag behind changes in market rates or may have limits on the maximum increases in the coupon rates. The value of variable and floating-rate securities may decline if their coupons do not rise as much, or as quickly, as interest rates in general. Conversely, variable and floating rate securities will not generally increase in value if interest rates decline. Certain types of variable and floating rate instruments may be subject to greater liquidity risk than other debt securities.

Zero Coupon Securities Risk
Zero coupon securities are debt securities that do not make periodic interest payments prior to maturity or a specified redemption date (or cash payment date). Accordingly, zero coupon securities usually trade at a deep discount from their face or par value and will be subject to greater fluctuations in market value in response to changing interest rates than debt obligations of comparable maturities that make current distribution of interest in cash. While interest payments are not made on such securities, the Fund accrues income with respect to these securities for federal income tax and accounting purposes. Longer term zero-coupon bonds are more exposed to interest rate risk than shorter term zero coupon bonds.

Fund Performance

Performance information for the Fund is not provided because the Fund had not commenced operations prior to the date of this Prospectus. Performance information will be available in the Prospectus after the Fund has been in operation for one full calendar year. When available, performance for the Fund can be accessed on the Fund’s website at www.americanbeaconfunds.com. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Management

The Manager
The Fund has retained American Beacon Advisors, Inc. to serve as its Manager.

Sub-Advisor

The Fund’s investment sub-advisor is abrdn Inc.

Portfolio Managers


abrdn Inc.	Jonathan Mondillo Portfolio Manager Since Fund Inception (2026)	Miguel Laranjeiro Portfolio Manager Since Fund Inception (2026)

Purchase and Sale of Fund Shares

The Fund is an exchange-traded fund. Individual Fund shares may only be purchased and sold on a national securities exchange through a broker-dealer and may not be purchased or redeemed directly with the Fund. Shares of the Fund are listed for trading on NYSE Arca, Inc. (the “Exchange”). Shares may be purchased and redeemed from the Fund only in Creation Units of 25,000 shares, or multiples thereof, at NAV. As a practical matter, only institutions and large investors, such as market makers or other large broker-dealers, purchase or redeem Creation Units. Most investors will buy and sell shares of the Fund on the Exchange. Individual shares can be bought and sold throughout the trading day like other publicly traded securities through a broker-dealer on the Exchange. These transactions do not involve the Fund. The price of an individual Fund share is based on market prices, which may be different from its NAV. As a result, the Fund’s shares may trade at a price greater than the NAV (at a premium) or less than the NAV (at a discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (“bid”) and the lowest price a seller is willing to accept for shares of the Fund (“ask”) when buying or selling shares in the secondary market (the “bid-ask spread”). Most investors will incur customary brokerage commissions and charges when buying or selling shares of the Fund through a broker-dealer.

Recent information regarding the Fund, including its NAV, market price, premiums and discounts, and bid-ask spreads, is available on the Fund’s website at www.americanbeaconfunds.com/products/etfs/american-beacon-aberdeen-municipal-high-income-etf/.

Tax Information

Dividends, capital gains distributions, and other distributions, if any, that you receive as a result of your investment in the Fund are subject to federal income tax and may also be subject to state and local income taxes, unless you are a tax-exempt entity or your account is tax-deferred, such as an individual retirement account (“IRA”) or a 401(k) plan (in which case you may be taxed later, upon the withdrawal of your investment from such account or plan).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and the Fund’s distributor, Foreside Financial Services, LLC, or the Manager may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your individual financial professional to recommend the Fund over another investment. Ask your individual financial professional or visit your financial intermediary’s website for more information.

Additional Information About the Fund

To help you better understand the Fund, this section provides a detailed discussion of the Fund’s investment policies, its principal strategies, its principal risks, and performance index. However, this Prospectus does not describe all of the Fund’s investment practices. Capitalized terms that are not otherwise defined are defined in Appendix A. For additional information, please see the Fund’s SAI, which is available at www.americanbeaconfunds.com or by contacting us via telephone at 1-833-471-3562, by U.S. mail at the Fund’s Distributor, Foreside Financial Services, LLC, 190 Middle Street, Suite 301, Portland, Maine 04101, or by e-mail at [email protected].

Additional Information About Investment Policies and Strategies

Investment Objective

The Fund’s investment objective is to seek to provide a high level of current income that is not subject to federal income tax.

The Fund’s investment objective is “non-fundamental,” which means that it may be changed by the Fund’s Board without the approval of Fund shareholders.

80% Investment Policy

The American Beacon Aberdeen Municipal High Income ETF has a fundamental policy to invest under normal circumstances at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in a diversified portfolio of tax-exempt municipal bonds.

Temporary Defensive Policy

The Fund may depart from its principal investment strategy by taking temporary defensive or interim positions in response to adverse market, economic, political, or other conditions. During these times, the Fund may not achieve its investment objective.

Additional Information About the Management of the Fund

The Fund has retained American Beacon Advisors, Inc. to serve as its Manager. The Manager may allocate the assets of the Fund among different sub-advisors. The Manager provides or oversees the provision of all administrative, investment advisory and portfolio management services to the Fund. The Manager:

■	develops overall investment strategies for the Fund,

■	selects and changes sub-advisors,

■	allocates assets among sub-advisors,

■	monitors and evaluates the sub-advisor’s investment performance,

■	monitors the sub-advisor’s compliance with the Fund’s investment objective, policies and restrictions,

■	oversees the Fund’s securities lending activities and actions taken by the securities lending agent to the extent applicable, and

■	directs the investment of the portion of Fund assets that the sub-advisor determines should be allocated to short-term investments.

The assets of the Fund are currently allocated by the Manager to one sub-advisor, abrdn Inc. (“Aberdeen”). Aberdeen has full discretion to purchase and sell securities for the Fund in accordance with the Fund’s objective, policies, restrictions and more specific strategies provided by the Manager. The Manager oversees the sub-advisor but does not reassess individual security selections made by the sub-advisor for the Fund.

In the future, the Manager may allocate the Fund’s assets to a different sub-advisor, and/or to one or more additional sub-advisors. The Fund operates in a manager-of-managers structure. The Fund and the Manager have received an exemptive order from the SEC that permits the Fund, subject to certain conditions and approval by the Board, to hire and replace sub-advisors, and materially amend agreements with sub-advisors, that are unaffiliated with the Manager without approval of the shareholders. In the future, the Fund and the Manager may rely on an SEC staff no-action letter, dated July 9, 2019, that would permit the Fund to expand its exemptive relief to hire and replace sub-advisors that are affiliated and unaffiliated with the Manager without shareholder approval, subject to approval by the Board and other conditions. The Manager has ultimate responsibility, subject to oversight by the Board, to oversee sub-advisors and recommend their hiring, termination and replacement. The SEC order also exempts the Fund from disclosing the advisory fees paid by the Fund to individual sub-advisors in a multi-manager fund in various documents filed with the SEC and provided to shareholders. In the future, the Fund may rely on the SEC staff no-action letter to expand its exemptive relief to individual sub-advisors that are affiliated with the Manager. Under that no-action letter, the fees payable to sub-advisors unaffiliated with or partially-owned by the Manager or its parent company would be aggregated, and fees payable to sub-advisors that are wholly-owned by the Manager or its parent company, if any, would be aggregated with fees payable to the Manager. Whenever a sub-advisor change is proposed in reliance on the order, in order for the change to be implemented, the Board, including a majority of its “non-interested” trustees, must approve the change. In addition, the Fund is required to provide shareholders with certain information regarding any new sub-advisor within 90 days of the hiring of any new sub-advisor.

Additional Information About Investments

This section provides more detailed information regarding certain of the Fund’s principal investment strategies.

Municipal Securities
The Fund’s investments in, or exposure to, municipal securities instruments may include:

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Auction Rate Securities. Auction rate securities are bonds whose interest rates are reset at specified intervals through an auction process designed to determine a single rate that enables purchases and sales of the auction rate securities to take place at par. Provided that the auction is successful, auction rate securities would permit the holder to sell the securities in an auction at par value at specified intervals.

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General Obligation Bonds. General obligation bonds are municipal securities that are backed by the full faith and credit of a state or local government issuer possessing taxing power and are payable from the issuer’s general unrestricted revenues, and not from any particular fund or source. The characteristics and method of enforcement of general obligation bonds may vary according to the law applicable to a particular issuer, and payment maybe dependent upon appropriation by the issuer’s legislative body.

■	Municipal Commercial Paper and Notes. Municipal commercial paper and notes are unsecured short-term obligations issued by a state or municipality.

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Municipal Lease Obligations. Municipal lease obligations are obligations issued by state and local governments to finance the acquisition of equipment and facilities. Municipal lease obligations may take the form of a lease, an installment purchase contract, or a participation interest in any of the above.

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Private Activity Bonds. Private activity bonds are revenue bonds that finance private initiatives, such as housing bonds that finance pools of single-family mortgages; student-loan bonds that finance student loans; education bonds that finance charter schools; and health care bonds that finance hospitals and other medical facilities. They may also include tobacco bonds issued by state-created special-purpose entities that securitize a state’s share of tobacco-settlement revenues.

■	Revenue Obligations. Revenue bonds are payable only from specific sources, such as the revenue from a particular project, special taxes, certain lease payments, or other appropriated funds.

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Moral Obligation Bonds. A moral obligation bond is a type of revenue bond with a non-binding commitment by the state or municipality to pay principal and interest if revenues from a project are insufficient to make such payments. This payment generally requires appropriation by the state legislature or municipal authority, which is not legally required.

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Tender-Option Bond Floaters. Tender option bond floaters are created when municipal bonds are deposited into a trust or other special purpose vehicle, which issues two classes of certificates with varying economic interests one of which is tender option bond floaters. These are floating rate certificates that receive tax-exempt interest based on short-term rates and its holders may tender the certificates to the trust at face value. Investments in tender option bond floaters expose the Fund to variable and floating rate securities risk. A trust may be terminated if, for example, the issuer of the underlying bond defaults on interest payments or the credit rating assigned to the issuer of the underlying bond is downgraded.

Additional Information About Risks

The greatest risk of investing in an ETF is that its returns will fluctuate and you could lose money. The following section provides additional information regarding the Fund’s principal risk factors in light of its principal investment strategies. The principal risks of investing in the Fund listed below are presented in alphabetical order and not in order of importance or potential exposure. Among other matters, this presentation is intended to facilitate your ability to find particular risks and compare them with the risks of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.

Callable Securities Risk
The Fund may invest in fixed-income securities with call features. A call feature allows the issuer of the security to redeem or call the security prior to its stated maturity date. In periods of falling interest rates, issuers may be more likely to call in securities that are paying higher coupon rates than prevailing interest rates. In the event of a call, the Fund would lose the income that would have been earned to maturity on that security, the proceeds received by the Fund may be invested in securities paying lower coupon rates or other less favorable characteristics, and the Fund may not benefit from any increase in value that might otherwise result from declining interest rates. Thus, the Fund’s income could be reduced as a result of a call and this may reduce the amount of the Fund’s distributions. In addition, the market value of a callable security may decrease if it is perceived by the market as likely to be called, which could have a negative impact on the Fund’s total return.

Counterparty Risk
The Fund is subject to the risk that a party or participant to a transaction, such as a broker or derivative counterparty, will be unwilling or unable to satisfy its obligation to make timely principal, interest or settlement payments or to otherwise honor its obligations to the Fund. As a result, the Fund may not recover its investment or may only obtain a limited recovery, and any recovery may be delayed. Not all derivative transactions require a counterparty to post collateral, which may expose the Fund to greater losses in the event of a default by a counterparty.

Credit Risk
The Fund is subject to the risk that the issuer, guarantor or insurer of an obligation, or the counterparty to a transaction, may fail, or become less able or unwilling, to make timely payment of interest or principal or otherwise honor its obligations or default completely. There are varying degrees of credit risk, depending on the financial condition of an issuer, guarantor, or counterparty, as well as the terms of an obligation, which may be reflected in the credit rating of the issuer, guarantor, or counterparty. The strategies utilized by the sub-advisor require accurate and detailed credit analysis of issuers and there can be no assurance that its analysis will be accurate or complete. The Fund may be subject to substantial losses in the event of credit deterioration or bankruptcy of one or more issuers in its portfolio. Financial strength and solvency of an issuer are the primary factors influencing credit risk. In addition, inadequacy of collateral or credit enhancement for a debt instrument may affect its credit risk. Credit risk may change over the life of an instrument and debt obligations which are rated by rating agencies may be subject to downgrade. The credit ratings of debt instruments and investments represent the rating agencies’ opinions regarding their credit quality, are not a guarantee of future credit performance of such securities, are not a guarantee of quality and do not protect against a decline in the value of a security. Rating agencies attempt to evaluate the safety of the timely payment of principal and interest (or dividends) and do not evaluate the risks of fluctuations in market value. The ratings assigned to securities by rating agencies do not purport to fully reflect the true risks of an investment. A decline in the credit rating of an individual security held by the Fund may have an adverse impact on its price and may make it difficult for the Fund to sell it. Rating agencies might not always change their credit rating on an issuer or security in a timely manner to reflect events that could affect the issuer’s ability to make timely payments on its obligations. Changes in the actual or perceived creditworthiness of an issuer, or a downgrade or default affecting any of the Fund’s securities, could affect the Fund’s performance. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.

Cybersecurity and Operational Risk
Operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents may negatively impact the Fund, its service providers, and third-party fund distribution platforms, including the ability of shareholders to transact in the Fund’s shares, and result in financial losses. Cybersecurity incidents may allow an unauthorized party to gain access to Fund assets, shareholder data, or proprietary information, or cause the Fund or its service providers, as well as the securities trading venues and their service providers, to suffer data corruption or lose operational functionality. Cybersecurity incidents can result from deliberate attacks or unintentional events. A cybersecurity incident could, among other things, result in the loss or theft of shareholder data or funds, shareholders or service providers being unable to access electronic systems (also known as “denial of services”), loss or theft of proprietary information or financial data, the inability to process Fund transactions, interference with the Fund’s ability to calculate its NAV, impediments to trading, physical damage to a computer or network system, or remediation costs associated with system repairs. The occurrence of any of these problems could result in a loss of information, violations of applicable privacy and other laws, regulatory scrutiny, penalties, fines, reputational damage, additional compliance requirements, and other consequences, any of which could have a material adverse effect on the Fund or its shareholders. Market events also may occur at a pace that overloads current information technology and communication systems and processes of the Fund, its service providers or other market participants, such as third-party distribution platforms, which could impact the ability of the Fund to conduct operations or of shareholders to transact the Fund’s shares.

The Manager, through its monitoring and oversight of Fund service providers, endeavors to determine that service providers take appropriate precautions to avoid or mitigate risks that could lead to problems discussed above. While the Manager has established business continuity plans and risk management systems seeking to address these problems, there are inherent limitations in such plans and systems, and it is not possible for the Manager, other Fund service providers, or third-party fund distribution platforms to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. Recent geopolitical tensions may increase the scale and sophistication of deliberate attacks, particularly those from nation-states or from entities with nation-state backing. The Fund cannot control the cybersecurity plans and systems of its service providers, its counterparties, third-party fund distribution platforms, or the issuers of securities in which the Fund invests. The issuers of the Fund’s investments

are likely to be dependent on computers for their operations and require ready access to their data and the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of the Fund’s investments, leading to significant loss of value.

Debentures Risk
In the event of a default or bankruptcy by the issuer, as unsecured creditors, debenture holders will not have a claim against any specific assets of the issuer and will therefore only be paid from the issuer’s assets after the secured creditors have been paid. The Fund is subject to the risk that the value of a debenture will fluctuate with changes in interest rates and the perceived ability of the issuer to make interest or principal payments on time.

Exchange-Traded Funds (“ETFs”) Risk
As an ETF, the Fund is subject to the following risks:

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Authorized Participants Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants. Only an Authorized Participant may transact in Creation Units directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. To the extent they exit the business or are otherwise unable to proceed in creation and redemption transactions with the Fund and no other Authorized Participant is able to step forward to create or redeem shares, then shares of the Fund may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting. Authorized Participant concentration risk may be heightened for ETFs, such as the Fund, that invest in securities issued by non-U.S. issuers or other securities or instruments that have lower trading volumes.

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Cash Transactions Risk. Like other ETFs, the Fund sells and redeems its shares primarily in large blocks called Creation Units and only to Authorized Participants. Unlike many other ETFs, however, the Fund expects to effect its creations and redemptions at least partially or fully for cash, rather than in-kind securities. Other ETFs generally are able to make in-kind redemptions and avoid realizing gains in connection with redemption requests. Effecting redemptions for cash may cause the Fund to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. Such dispositions may occur at an inopportune time, resulting in potential losses to the Fund or difficulties in meeting shareholder redemptions, and involve transaction costs. If the Fund recognizes gain on these sales, this generally will cause the Fund to recognize gain it might not otherwise have recognized if it were to distribute portfolio securities in-kind or to recognize such gain sooner than would otherwise have been required. The Fund generally intends to distribute these gains to shareholders to avoid being taxed on this gain at the Fund level and otherwise comply with the special tax rules that apply to it. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than, if they had made an investment in another ETF. In addition, cash transactions may have to be carried out over several days if the securities market in which the Fund is trading is less liquid and may involve considerable transaction expenses and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, may be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. However, the Fund has capped the total fees that may be charged in connection with the redemption of Creation Units at 2% of the value of the Creation Units redeemed. To the extent transaction and other costs associated with a redemption exceed that cap, those transaction costs will be borne by the Fund’s remaining shareholders. These factors may result in wider spreads between the bid and the offered prices of the Fund’s shares than for other ETFs.

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Premium/Discount Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s securities holdings. The market prices of Fund shares will generally fluctuate in accordance with changes in the Fund’s NAV and supply and demand of shares on the secondary market. It cannot be predicted whether Fund shares will trade below their NAV (at a discount), at their NAV, or above their NAV (at a premium). As a result, shareholders of the Fund may pay more than NAV when purchasing shares and receive less than NAV when selling Fund shares. This risk is heightened in times of market volatility or periods of steep market declines. In such market conditions, market or stop-loss orders to sell the Fund shares may be executed at market prices that are significantly below NAV. Price differences may be due, in part, to the fact that supply and demand forces at work in the secondary trading market for shares may be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings. The market prices of Fund shares may deviate significantly from the NAV of the shares during periods of market volatility or if the Fund’s holdings are or become more illiquid. Disruptions to creations and redemptions may result in trading prices that differ significantly from the Fund’s NAV. In addition, market prices of Fund shares may deviate significantly from the NAV if the number of Fund shares outstanding is smaller or if there is less active trading in Fund shares. Investors purchasing and selling Fund shares in the secondary market may not experience investment results consistent with those experienced by those creating and redeeming directly with the Fund.

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Secondary Market Trading Risk. Investors buying or selling shares in the secondary market will normally pay brokerage commissions, which are often a fixed amount and may be a significant proportional cost for investors buying or selling relatively small amounts of shares. In addition, such investors may incur the cost of the “spread” also known as the bid-ask spread, which is the difference between what investors are willing to pay for Fund shares (the “bid” price) and the price at which they are willing to sell Fund shares (the “ask” price). The bid-ask spread varies over time based on, among other things, trading volume, market liquidity and market volatility, and is generally lower if the Fund’s shares have more trading volume and market liquidity and higher if the Fund’s shares have little trading volume and market liquidity. Increased market volatility may cause increased bid-ask spreads. Shares of the Fund may trade in the secondary market at times when the Fund does not accept orders to purchase or redeem shares. At such times, shares may trade in the secondary market with more significant premiums or discounts than might be experienced at times when the Fund accepts purchase and redemption orders. Although Fund shares are listed for trading on the Exchange, there can be no assurance that an active trading market for such shares will develop or be maintained or that the Fund’s shares will continue to be listed. If the Fund is delisted, any resulting liquidation of the Fund could create transaction costs for the Fund and adverse federal income tax consequences for investors. Trading in Fund shares may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in shares is subject to trading halts caused by extraordinary market volatility pursuant to Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged or that the shares will trade with any volume, or at all. Shares of the Fund, similar to shares of other issuers listed on a stock exchange, may be sold short and are therefore subject to the risk of increased volatility and price decreases associated with being sold short. In addition, trading activity in derivative products based on the Fund may lead to increased trading volume and volatility in the secondary market for the shares of the Fund.

High-Yield Securities Risk
Exposure to high-yield securities (commonly referred to as ‘’junk bonds’’) generally involves significantly greater risks of loss of your money than an investment in investment-grade securities. Compared with issuers of investment grade securities, issuers of high-yield securities are more likely to encounter financial difficulties and to be materially affected by these difficulties. High-yield debt securities may fluctuate more widely in price and yield and may fall in price when the economy is weak or expected to become weak. These securities also may be difficult to sell at the time and price the Fund desires. High-yield securities are considered to be speculative with respect to an issuer’s ability to pay interest and principal and carry a greater risk that issuers of lower-rated securities will default on the timely payment of principal or interest. Rising interest rates may compound these difficulties and reduce an issuer’s ability to repay principal and interest obligations. Issuers of lower-rated securities also have a greater risk of default or bankruptcy. Issuers of securities that are in default or have defaulted may fail to resume principal or interest payments, in which case the Fund may lose its entire investment. Below-investment-grade securities may experience greater price volatility and less liquidity than investment-grade securities.

Lower-rated securities are subject to certain risks that may not be present with investments in higher-grade securities. The lower rating of certain high-yielding corporate income securities reflects a greater possibility that the financial condition of the issuer or adverse changes in general economic conditions may impair the ability of the issuer to pay income and principal. Changes by credit rating agencies in their ratings of a fixed-income security also may affect the value of these investments. However, allocating investments among securities of different issuers could reduce the risks of owning any such securities separately. The prices of these high-yield securities tend to be less sensitive to interest rate changes than investment-grade investments, but more sensitive to adverse economic changes or individual corporate developments. During economic downturns or periods of rising interest rates, highly leveraged issuers may experience financial stress that adversely affects their ability to service principal and interest payment obligations, to meet projected business goals or to obtain additional financing, and the markets for their securities may be more volatile. If an issuer defaults, the Fund may incur additional expenses to seek recovery. Additionally, accruals of interest income for the Fund may have to be adjusted in the event of default. In the event of an issuer’s default, the Fund may write off prior income accruals for that issuer, resulting in a reduction in the Fund’s current dividend payment. Frequently, the higher yields of high-yielding securities may not reflect the value of the income stream that holders of such securities may expect, but rather the risk that such securities may lose a substantial portion of their value as a result of their issuer’s financial restructuring or default.

The credit rating of a security may not accurately reflect the actual credit risk associated with such a security. The creditworthiness of issuers of these securities may be more complex to analyze than that of issuers of investment grade debt securities, and the overreliance on credit ratings may present additional risks.

Adverse publicity and investor perceptions, whether or not based on fundamental analysis, may decrease the values and liquidity of such securities, especially in a thinly traded or illiquid market. To the extent the Fund owns or may acquire illiquid or restricted high-yield securities or unrated securities of comparable quality, these securities may involve special registration responsibilities, liabilities, costs, and liquidity and valuation difficulties.

Interest Rate Risk
Investments in fixed-income securities that are influenced by interest rates are subject to interest rate risk. Generally, the value of investments with interest rate risk, such as fixed-income securities, will move in the opposite direction as movements in interest rates. For example, the value of the Fund’s fixed-income investments typically will fall when interest rates rise. Factors including central bank monetary policy, rising inflation rates, and changes in general economic conditions may cause interest rates to rise, which could cause the value of the Fund’s investments to decline. Interest rate increases, including significant or rapid increases, may result in a decline in the value of bonds held by the Fund, make issuers less willing or able to make principal and interest payments on fixed-income investments when due, lead to heightened volatility in the fixed-income markets and adversely affect the liquidity of certain fixed-income investments, any of which may result in substantial losses to the Fund. When interest rates decline, issuers may prepay higher-yielding securities held by the Fund, resulting in the Fund reinvesting in securities with lower yields, which may cause a decline in its income. The prices of fixed-income securities are also affected by their durations. Fixed-income securities with longer durations tend to be more sensitive to changes in interest rates, usually making them more volatile than fixed-income securities with shorter durations. Rising interest rates may cause the value of the Fund’s investments in investments with longer durations and terms to maturity to decline, which may adversely affect the value of the Fund. For example, if a bond has a duration of three years, a 1% increase in interest rates could be expected to result in a 3% decrease in the value of the bond. Yields of fixed-income securities will fluctuate over time. In addition, decreases in fixed-income dealer market-making capacity may lead to lower trading volume, heightened volatility, wider bid-ask spreads, and less transparent pricing in certain fixed-income markets. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from Fund performance to the extent a Fund is exposed to such interest rates. In a low interest rate environment, some investors may seek to reallocate assets to other income-producing assets. This may cause the price of such higher yielding instruments to rise and may limit a Fund’s ability to locate fixed income instruments containing the desired risk/return profile.

The Fund may not be able to hedge against changes in interest rates or may choose not to do so for cost or other reasons. In addition, any hedges may not work as intended.

Investment Risk
An investment in the Fund is not a deposit with a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund should not be relied upon as a complete investment program. The share price of the Fund fluctuates, which means that when you sell your shares of the Fund, they could be worth less than what you paid for them. Therefore, you may lose money by investing in the Fund.

Issuer Risk
The value of, and/or the return generated by, a security may decline for a number of reasons that directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets. When the issuer of a security implements strategic initiatives, including mergers, acquisitions and dispositions, there is the risk that the market response to such initiatives will cause the share price of the issuer’s securities to fall. An individual security may be more volatile, and may perform differently, than the market as a whole.

Liquidity Risk
The Fund is susceptible to the risk that certain investments held by the Fund may have limited marketability, be subject to restrictions on sale, be difficult or impossible to purchase or sell at favorable times or prices or become less liquid in response to market developments or adverse credit events that may affect issuers or guarantors of a security. Market prices for such instruments may be volatile. During periods of substantial market volatility, an investment or even an entire market segment may become illiquid, sometimes abruptly, which can adversely affect the Fund’s ability to limit losses. When there is little or no active trading market for specific types of securities, it can become more difficult to purchase or sell the securities at or near their perceived value. As a result, the Fund may have to lower the price on certain securities that it is trying to sell, sell other securities instead or forgo an investment opportunity, any of which could have a negative effect on Fund management or performance. An inability to sell a portfolio position can adversely affect the Fund’s NAV or prevent the Fund from being able to take advantage of other investment opportunities. The Fund could lose money if it is unable to dispose of an investment at a time that is most beneficial to the Fund. For example, liquidity risk may be magnified in rising interest rate environments in the event of higher than normal redemption rates. Judgment plays a greater role in pricing illiquid investments than in investments with more active markets.

Market Risk
The Fund is subject to the risk that the securities markets will move down, sometimes rapidly and unpredictably, based on overall economic conditions and other factors, which may negatively affect the Fund’s performance. Even when securities markets perform well, there is no assurance that the investments held by the Fund will increase in value along with the broader market. Equity securities generally have greater price volatility than fixed-income securities, although under certain market conditions fixed-income securities may have comparable or greater price volatility. The financial markets generally move in cycles, with periods of rising prices followed by periods of declining prices. The value of your investment may reflect these fluctuations. During a general downturn in the securities markets, multiple asset classes may decline in value simultaneously. During times of market turmoil, investors tend to look to the safety of securities issued or backed by the U.S. Treasury, causing the prices of these securities to rise and the yields to decline. In some cases, traditional market participants have been less willing to make a market in some types of debt instruments, which has affected the liquidity of those instruments. Reduced liquidity in fixed-income and credit markets may negatively affect many issuers worldwide. Prices in many financial markets have increased significantly over the last 10-15 years, but there have also been periods of adverse market and financial developments and cyclical change during that

timeframe, which have resulted in unusually high levels of volatility in domestic and foreign financial markets that has caused losses for investors and may occur again in the future, particularly if markets enter a period of uncertainty or economic weakness. Periods of unusually high volatility in the financial markets and restrictive credit conditions, sometimes limited to a particular sector or geographic region, continue to recur. The value of a security may decline due to adverse issuer-specific conditions or general market conditions unrelated to a particular issuer, such as real or perceived adverse geopolitical, regulatory, market, economic or other developments that may cause broad changes in market value, changes in the general outlook for corporate earnings, changes in interest, currency or inflation rates, lack of liquidity in the markets, public perceptions concerning these developments or adverse market sentiment generally. The value of a security may also decline due to factors that affect a particular industry or industries, such as tariffs, labor shortages or increased production costs and competitive conditions within an industry. Changes in the financial condition of a single issuer or market segment also can impact the market as a whole.

Geopolitical and other events, including war, terrorism, economic uncertainty, trade disputes, pandemics, public health crises, natural disasters, and cybersecurity incidents, have led, and in the future may continue to lead, to general instability in world economies and markets and reduced liquidity in securities, which may negatively affect the value of your investment. Such market disruptions have caused, and may continue to cause, broad changes in market value, negative public perceptions concerning these developments, a reduction in the willingness and ability of some lenders to extend credit, difficulties for some borrowers in obtaining financing on attractive terms, if at all, and adverse investor sentiment or publicity. Changes in value may be temporary or may last for extended periods. Adverse market events may also lead to increased shareholder redemptions, which could cause the Fund to sell investments at an inopportune time to meet redemption requests by shareholders and may increase the Fund’s portfolio turnover, which could increase the costs that the Fund incurs and lower the Fund’s performance.

Policies established by the U.S. government and/or Federal Reserve and economic and political circumstances within the U.S. and abroad, such as inflation, changes in interest rates, recessions, changes in government leadership, a government’s inability to agree on a budget, high public debt, the threat or occurrence of a federal government shutdown and threats or the occurrence of a failure to increase the federal government’s debt limit, which could result in a default on the government’s obligations, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree. The severity or duration of adverse economic conditions may also be affected by policy changes made by governments or quasi-governmental organizations. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.

Markets and market participants are increasingly reliant upon both publicly available and proprietary information data systems. Data imprecision, software or other technology malfunctions, programming inaccuracies, unauthorized use or access, and similar circumstances may impair the performance of these systems and may have an adverse impact upon a single issuer, a group of issuers, or the market at large. In certain cases, an exchange or market may close or issue trading halts on either specific securities or even the entire market, which may result in the Fund being, among other things, unable to buy or sell certain securities or financial instruments or accurately price its investments.

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Recent Market Events Risk. Both U.S. and international markets have experienced significant volatility in recent months and years. As a result of such volatility, investment returns may fluctuate significantly. Moreover, during periods of significant volatility, the risks discussed herein associated with an investment in the Fund may be increased. National economies are substantially interconnected, as are global financial markets, which creates the possibility that conditions in one country or region might adversely impact issuers in a different country or region. However, the interconnectedness of economies and/or markets may be changing, which may impact such economies and markets in ways that cannot be foreseen at this time.
Some countries, including the U.S., have adopted more protectionist trade policies, including trade tariffs and other trade barriers, which is a trend that appears to be continuing globally. The economies of all nations, including the U.S., are subject to the risks of slowing global economic growth, protectionist trade policies, inflationary pressures, limits imposed by international trade and security agreements, political or economic dysfunction, poor consumer sentiment, and reduced demand for goods due to fluctuating commodity prices and currency values, and these risks may create significant market volatility in ways that cannot be foreseen at the present time. These economic risks could have a negative impact on the Fund’s investments. The U.S. has imposed or threatened to impose tariffs and other trade barriers on imports of certain categories of goods from Canada, Mexico, and European countries. The U.S. also has imposed or threatened to impose tariffs and other trade barriers on imports of certain categories of goods from China, has restricted sales of certain categories of goods to China, and has established barriers to investments in China. These countries have imposed or threatened to impose retaliatory tariffs on U.S. goods. If relations between the U.S. and these and other foreign countries do not improve or continue to deteriorate, markets and individual securities may be severely affected both regionally and globally, and the value of the Fund’s investments may go down.
The U.S. Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors could stop or reverse such changes. It is difficult to accurately predict the various economic and political factors that influence 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. Changes in interest rates could lead to an economic slowdown in the U.S. and abroad, significant market volatility and reduced liquidity in certain sectors of the market. Deteriorating economic fundamentals may increase the risk of default or insolvency of particular issuers, negatively impact market value, increase market volatility, cause credit spreads to widen, reduce bank balance sheets and cause unexpected changes in interest rates. Any of these could cause an increase in market volatility, reduce liquidity across various sectors or markets or decrease confidence in the markets. Also, regulators have expressed concern that changes in interest rates may cause investors to sell fixed income securities faster than the market can absorb them, contributing to price volatility. Historical patterns of correlation among asset classes may break down in unanticipated ways during times of high volatility, disrupting investment programs and potentially causing losses.
Tensions, war (including cyber warfare) or open conflict between nations, such as among the United States, Israel and Iran, between Russia and Ukraine, otherwise in the Middle East or in eastern Asia could affect the economies of many nations, including the United States and may contribute to increased volatility and uncertainty in the financial markets. The extent and duration of ongoing hostilities and related sanctions and the repercussions of such events, including the potential for cyber warfare, remain uncertain and cannot be predicted. Those events have presented and could continue to present material uncertainty and risk with respect to markets globally, including in the oil and gas markets and potentially other industries and sectors, and the performance of the Fund and its investments or operations could be negatively impacted whether or not the Fund invests in securities of issuers located in or with significant exposure to the countries or regions directly affected.
Regulators in the U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of such regulations is not currently known, and certain regulatory changes could limit the Fund’s ability to pursue its investment strategies or make certain investments, may make it more costly for the Fund to operate, and adversely impact performance. Additionally, it is possible such regulations could be further revised or rescinded, which creates material uncertainty regarding their impact to the Fund.
Further, advancements in technology may also adversely impact market movements and liquidity. For example, the advanced development and increased regulation of artificial intelligence may impact the economy and the performance of the Fund. As artificial intelligence is used more widely, which can occur relatively rapidly, the profitability and growth of certain issuers and industries may be negatively impacted in ways that cannot be foreseen and could adversely impact issuer and market performance. As a consequence, the Fund’s holdings and its overall performance could be negatively impacted.
High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the

U.S. Congress will act to raise the nation’s debt ceiling; a failure to do so could cause market turmoil and substantial investment risks that cannot be fully predicted. Unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. China’s economy, which has been sustained through debt-financed spending on housing and infrastructure, appears to be experiencing a significant slowdown and growing at a lower rate than prior years. While the Chinese government appears to be taking measures to address these issues, due to the size of China’s economy, the resolution of these issues could impact a number of other countries.
Certain illnesses spread rapidly and have the potential to significantly and adversely affect the global economy. The impact of epidemics and/or pandemics that may arise in the future could negatively affect the economies of many nations, individual companies and the global securities and commodities markets, including their liquidity, in ways that cannot necessarily be foreseen at the present time and could last for an extended period of time.
Global climate change potentially may affect property and security values. Impacts from climate change may include significant risks to global financial assets and economic growth. A rise in sea levels, an increase in powerful storms and/or a climate-driven increase in sea levels or flooding could cause coastal properties to lose value or become unmarketable altogether. Certain issuers, industries and regions may be adversely affected by the impacts of climate change in ways that cannot be foreseen, including on the demand for and the development of goods and services and related production costs, and the impacts of legislation, regulation and international accords related to climate change, as well as any indirect consequences of regulation or business trends driven by climate change. Regulatory changes and divestment movements tied to concerns about climate change could adversely affect the value of certain land and the viability of industries whose activities or products are seen as accelerating climate change. Losses related to climate change could adversely affect, among others, corporate issuers and mortgage lenders, the value of mortgage-backed securities, the bonds of municipalities that depend on tax or other revenues and tourist dollars generated by affected properties, and insurers of the property and/or of corporate, municipal or mortgage-backed securities.

Municipal Securities Risk
The value of municipal securities, and the ability of a municipal issuer to make payments, can be affected by uncertainties in the municipal securities market, including: litigation; the strength of the local or national economy; the issuer’s ability to raise revenues through tax or other means; budgetary constraints of local, state and federal governments upon which the issuer may be relying for funding; a legislature’s willingness or ability to appropriate funds needed to pay municipal securities obligations; the bankruptcy of the issuer; adverse political and legislative changes, including to eliminate or limit the tax-exempt status of municipal bond interest or dividends; and other changes in the financial condition of a municipality.

Municipal securities and their issuers may be more susceptible to downgrade, default and bankruptcy as a result of economic stress. Factors contributing to the economic stress on municipalities may include lower property tax collections as a result of lower home values, lower sales tax revenue as a result of consumers cutting back spending, and lower income tax revenue as a result of a higher unemployment rate. In addition, since some municipal obligations may be secured or guaranteed by banks and other institutions, the risk to the Fund could increase if the banking or financial sector suffers an economic downturn and/or if the credit ratings of the institutions issuing the guarantee are downgraded or at risk of being downgraded by a national rating organization. If such events were to occur, the value of the security could decrease or the value could be lost entirely, and it may be difficult or impossible for the Fund to sell the security at the time and the price that normally prevails in the market. At times, municipal issuers have defaulted on obligations or commenced insolvency proceedings. Financial difficulties of municipal issuers may continue or get worse in the future. Reductions in tax rates may make municipal securities less attractive in comparison to taxable bonds. Some obligations may be difficult to trade or interest payments may be tied only to a specific stream of revenue. In addition, the Fund’s investments in municipal securities are subject to the following risks:

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Auction Rate Securities Risk. Auction rate securities are variable rate bonds whose interest rates are reset at specified intervals through a “Dutch” auction process. A “Dutch” auction is a competitive bidding process designed to determine a single uniform clearing rate that enables purchases and sales of the auction rate securities to take place at par. All accepted bids and holders of the auction rate securities receive the same rate. Auction rate securities holders rely on the liquidity generated by the auction. There is a risk that an auction will fail due to insufficient demand for the securities. If an auction fails, an auction rate security may become illiquid until a subsequent successful auction is conducted, the issuer redeems the issue, or a secondary market develops.

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General Obligation Bonds Risk. A general obligation bond is secured by the full faith, credit and taxing power of the issuing municipality, not revenues from a specific project or source. Consequently, timely payments depend on the issuer’s credit quality, ability to raise tax revenues and ability to maintain an adequate tax base. The taxing power of a municipality may be limited by provisions of constitutions or laws and a municipality’s credit will depend on many factors. A municipality in which the Fund invests may experience significant financial difficulties, including bankruptcy or default, which may negatively impact the Fund.

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Municipal Commercial Paper and Notes Risk. Municipal commercial paper is unsecured, likely used to meet the short-term needs of a municipality, and generally is repaid from general revenues of the municipality or refinanced with long-term debt. Municipal notes usually are general obligations of the issuer and are sold in anticipation of a bond sale, collection of taxes, or receipt of other revenues. Payment of these notes is dependent upon the issuer’s receipt of the anticipated revenues.

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Private Activity Bonds Risk. The issuers of private activity bonds in which the Fund may invest may be negatively impacted by conditions affecting either the general credit of the user of the private activity project or a project itself. Conditions such as regulatory and environmental restrictions and economic downturns may lower the need for these facilities and the ability of users of the project to pay for the facilities. This could cause a decline in the Fund’s value. The Fund’s private activity bond holdings also may pay interest subject to the alternative minimum tax. See the section of the Prospectus entitled “About Your Investment-Distributions and Taxes” for more details.

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Moral Obligation Bonds Risk. A moral obligation bond is a type of revenue bond issued by a state or municipality pursuant to legislation authorizing the establishment of a reserve fund to pay principal and interest if the issuer is unable to meet its obligations through current revenues. The establishment of such a reserve fund generally requires appropriation by a state legislature, which is not legally required. The establishment of such a reserve fund is generally considered a moral commitment, but not a legal obligation of the state or municipality that created the issuer.

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bond floaters expose the Fund to variable and floating rate securities risk. A trust may be terminated if, for example, the issuer of the underlying bond defaults on interest payments or the credit rating assigned to the issuer of the underlying bond is downgraded.

New Fund Risk
The Fund had not commenced operations prior to the date of this Prospectus. The current performance and expenses of the Fund may not represent how it is expected to, or may, perform in the long term if and when it becomes larger and has fully implemented its investment strategies. Investment positions may have a disproportionate impact (negative or positive) on the Fund’s performance. The Fund’s shareholder fees and annual fund operating expenses may also be higher initially than after it has fully implemented its investment strategies and attracted sufficient assets to achieve investment and trading efficiencies. The Fund may also require a period of time before it is invested in securities that meet its investment objectives and policies and achieves a representative portfolio composition. Fund performance may be lower or higher during this “ramp-up” period, and may also be more volatile, than would be the case after the Fund is fully invested. Similarly, the Fund’s investment strategies may require a longer period of time to show returns that are representative of the strategies.

Restricted Securities Risk
Securities not registered in the U.S. under the Securities Act of 1933, as amended (the “Securities Act”), or in non-U.S. markets pursuant to similar regulations, including “Section 4(a)(2)” securities and “Rule 144A” securities, are restricted as to their resale. Such securities may not be listed on an exchange and may have no active trading market. The prices of these securities may be more difficult to determine than publicly traded securities and these securities may involve heightened risk as compared to investments in securities of publicly traded companies. They may be more difficult to purchase or sell at an advantageous time or price because such securities may not be readily marketable in broad public markets, or may have to be held for a certain time period before they can be resold. The Fund may not be able to sell a restricted security when the sub-advisor considers it desirable to do so and/or may have to sell the security at a lower price than the Fund believes is its fair market value. A restricted security that was liquid at the time of purchase may subsequently become illiquid. In addition, transaction costs may be higher for restricted securities and the Fund may receive only limited information regarding the issuer of a restricted security. The Fund may have to bear the expense of registering restricted securities for resale and the risk of substantial delays in effecting the registration. If, during such a delay, adverse market conditions were to develop, the Fund might obtain a less favorable price than prevailed at the time it decided to seek registration of the security.

Sector Risk
Sector risk is the risk associated with the Fund holding a significant amount of investments in issuers conducting business in a related group of industries within the same economic sector, which may be similarly affected by particular economic or market events. To the extent the Fund has substantial holdings within a particular sector, the risks to the Fund associated with that sector increase and the Fund may perform poorly during a downturn in one or more of the industries within that sector. In addition, when the Fund focuses its investments in certain sectors of the economy, its performance may be driven largely by sector performance and could ﬂuctuate more widely than if the Fund were invested more evenly across sectors. Individual sectors may be more volatile, and may perform differently, than the broader market. The industries that constitute a sector may all react the same way to economic, political or regulatory events. The Fund’s performance could also be adversely affected if the sectors do not perform as expected. The lack of exposure to one or more industries within a sector may adversely affect performance. As the Fund’s portfolio changes over time, the Fund’s exposure to a particular sector may become higher or lower.

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Education Sector Risk. The Fund may invest a significant portion of its assets in education bonds, and may be more affected by events influencing the education sector than a fund that is more diversified across multiple sectors. In general, there are two types of bonds that are associated with the education sector: those that are issued to finance projects for public and private colleges and universities, and those that represent pooled interests in student loans. Bonds issued to supply educational institutions with funds are subject to the risk of unanticipated revenue decline, primarily the result of decreasing student enrollment or decreased state and federal funding. Factors that may lead to declining or insufficient revenues include restrictions on students’ ability to pay tuition, availability of state and federal funding, and general economic conditions. Student loan revenue bonds are generally offered by state (or sub-state) authorities or commissions and are backed by pools of student loans. Risks associated with student loan revenue bonds include rate of student loan defaults, seasoning of the loan portfolio, student repayment deferral periods of forbearance, potential changes in federal legislation, state guarantee agency reimbursements, and continued federal interest and other program subsidies currently in effect.

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Secured, Partially Secured and Unsecured Obligation Risk
Debt obligations may be secured, partially secured or unsecured. Debt obligations that are secured with specific collateral of the borrower provide the holder with a claim on that collateral in the event that the borrower does not pay scheduled interest or principal that is senior to that held by any unsecured creditors, subordinated debt holders and stockholders of the borrower. Obligations that are fully secured offer the Fund more protection than a partially secured or unsecured obligation in the event of such non-payment of scheduled interest or principal.

Interests in secured obligations have the benefit of collateral and, typically, of restrictive covenants limiting the ability of the borrower to further encumber its assets. However, there is no assurance that the liquidation of collateral from a secured obligation would satisfy the borrower’s obligation, or that the collateral can be liquidated. Furthermore, there is a risk that the value of any collateral securing an obligation in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the obligation. In most loan agreements there is no formal requirement to pledge additional collateral. In the event the borrower defaults, the Fund’s access to the collateral may be limited or delayed by bankruptcy or other insolvency laws. In addition, the collateral securing the obligation may not be recognized for a variety of reasons, including the failure to make required filings by lenders, trustees or other responsible parties and, as a result, the Fund may not have priority over other creditors as anticipated. Further, in the event of a default, second lien secured loans will generally be paid only if the value of the collateral exceeds the amount of the borrower’s obligations to the first lien secured lenders, and the remaining collateral may not be sufficient to cover the full amount owed on the loan in which the Fund has an interest.

If an obligation in which the Fund invests, such as a secured loan, is foreclosed, the Fund could become owner, in whole or in part, of any collateral, which could include, among other assets, real estate or other real or personal property, and as a creditor would likely bear its pro rata costs and liabilities associated with owning and holding or disposing of the collateral. The collateral may be difficult to sell, and the Fund would bear the risk that the collateral may decline in value while the Fund is holding it.

Some obligations in which the Fund may invest are only partially-secured or are unsecured. Unsecured debt, including senior unsecured and subordinated debt, will not be secured by any collateral, and will be effectively subordinated to a borrower’s secured indebtedness (to the extent of the collateral securing such indebtedness). With respect to unsecured obligations, the Fund lacks any collateral on which to foreclose to satisfy its claim in whole or in part. Such instruments generally have greater price volatility than that of fully secured holdings and may be less liquid.

Securities Selection Risk
Securities selected for the Fund may decline substantially in value or may not perform to expectations. Judgments about the attractiveness, value and anticipated price movements of a security or asset class may be incorrect, and there is no guarantee that securities will perform as anticipated. This could result in the Fund’s underperformance compared to other funds with similar investment objectives.

Tax and Political Risk
There is no guarantee that the Fund’s income will be exempt from U.S. federal income taxes and the federal AMT. The sub-advisor relies on bond issuer’s prospectus disclosure of the tax opinion from the bond issuer’s counsel as to the tax-exempt status of the investment. None of the Manager, the sub-advisor or the Fund guarantees that these opinions are correct, and there is no assurance that the U.S. Internal Revenue Service (“IRS”) will agree with the bond issuer’s counsel’s tax opinion. Issuers or other parties generally enter into covenants requiring continuing compliance with U.S. federal tax requirements to preserve the tax-free status of interest payments over the life of the security. If at any time the covenants are not complied with, or if the IRS otherwise determines that the issuer did not comply with relevant tax requirements, interest payments from a security could become federally taxable, possibly retroactively to the date the security was issued, and the security could decline significantly in value. The interest on any money market instruments or other cash equivalents held by the Fund may be subject to federal, state and local income taxation and the federal Medicare contribution tax.

Events occurring after the date of issuance of a municipal bond or after the Fund’s acquisition of a municipal bond may result in a determination that interest on that bond is includible in gross income for U.S. federal, state and local income tax, federal AMT or federal Medicare contribution tax purposes retroactively to its date of issuance. Such a determination may cause a portion of prior distributions by the Fund to its shareholders to be taxable to those shareholders in the year of receipt. U.S. federal or state changes in income, federal AMT or federal Medicare contribution tax rates or in the tax treatment of municipal bonds may make municipal bonds less attractive as investments and cause them to lose value. A significant restructuring of federal income tax rates, or even serious discussion on the topic in Congress, could cause municipal bond prices to fall. The demand for municipal securities is strongly influenced by the value of tax-exempt income to investors. Lower income tax rates could reduce the advantage of owning municipal securities.

Unrated Securities Risk
Because the Fund may purchase securities that are not rated by any rating organization, the sub-advisor, after assessing their credit quality, may internally assign ratings to certain of those securities, in categories of those similar to those of rating organizations. Investing in unrated securities involves the risk that the sub-advisor may not accurately evaluate the security’s comparative credit rating. To the extent that the Fund invests in unrated securities, the Fund’s success in achieving its investment objective may depend more heavily on the sub-advisor’s credit analysis than if the Fund invested exclusively in rated securities. Less public information is typically available about unrated securities or issuers. Some unrated securities may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price. Unrated securities may also be subject to greater liquidity risk and price volatility.

Valuation Risk
This is the risk that a security may be valued at a price different from the price at which it can be sold. This risk may be especially pronounced for investments that may be illiquid or may become illiquid and for securities that trade in relatively thin markets and/or markets that experience extreme volatility. The valuation of the Fund’s investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents. If market conditions make it difficult to value certain investments, SEC rules and applicable accounting protocols may require the valuation of these investments using more subjective methods, such as fair-value methodologies. Using fair value methodologies to price investments may result in a value that is different from an investment’s most recent closing price and from the prices used by others for the same investment. Investors who purchase or redeem Fund shares on days when the Fund is holding fair-valued securities may receive fewer or more shares, or lower or higher redemption proceeds, than they would have received if the securities had not been fair valued or a different valuation methodology had been used. The value of foreign securities, certain fixed-income securities and currencies, as applicable, may be materially affected by events after the close of the markets on which they are traded, but before the Fund determines its NAV.

Variable and Floating Rate Securities Risk
The coupons on variable and floating rate securities in which the Fund may invest are not fixed and may fluctuate based upon changes in market rates. Variable and floating rate securities are subject to interest rate risk. Although the impact of interest rate changes on variable and floating rate investments is intended to be mitigated by the periodic interest rate reset of those securities, variable and floating rate securities may fluctuate in value in response to interest rate changes if there is a delay between changes in market interest rates and the interest reset date for the obligation, or for other reasons. As short-term interest rates decline, the coupons on variable and floating rate securities typically decrease. Alternatively, during periods of rising short-term interest rates, the coupons on variable and floating rate securities typically increase. Changes in the coupons of variable and floating rate securities may lag behind changes in market rates or may have limits on the maximum increases in the coupon rates. The value of variable and floating rate securities may decline if their coupons do not rise as much, or as quickly, as interest rates in general. In addition, because of the interest rate adjustment feature, variable and floating rate securities provide the Fund with a certain degree of protection against increases in interest rates, but the Fund will participate in any declines in interest rates as well. Thus, investing in variable and floating rate instruments generally allows less opportunity for capital appreciation and depreciation than investing in instruments with a fixed interest rate. Variable and floating rate securities are less effective than fixed rate securities at locking in a particular yield and may be subject to credit risk. Certain types of floating rate instruments may also be subject to greater liquidity risk than other debt securities.

Zero Coupon Securities Risk
Zero coupon securities are debt securities that do not make periodic interest payments prior to maturity or a specified redemption date (or cash payment date). Unlike bonds which pay cash interest throughout the period to maturity, the Fund will realize no cash until the cash payment or maturity date unless a portion of such securities are sold and, if the issuer defaults, the Fund may obtain no return at all on its investment. Accordingly, zero coupon securities usually trade at a deep discount from their face or par value and will be subject to greater fluctuations in market value in response to changing interest rates than debt obligations of comparable maturities and credit qualities that make current distribution of interest in cash. While interest payments are not made on such securities, the Fund accrues income with respect to these securities for federal income tax and accounting purposes. To maintain its qualification for pass-through treatment under the federal tax laws, the Fund is required to distribute income to its shareholders and, consequently, may have to dispose of other, more liquid portfolio securities under disadvantageous circumstances in order to generate the cash to satisfy distributions of income accrued on zero coupon securities. The required distributions may result in an increase in the Fund’s exposure to zero coupon securities.

Additional Information About Performance Index

The Fund’s performance will be compared to the Bloomberg Municipal Bond Index. Set forth below is additional information regarding the index to which the Fund’s performance is compared.

■	The Bloomberg Municipal Bond Index covers the USD-denominated long-term tax exempt bond market. The index has four main sectors: state and local general obligation bonds, revenue bonds, insured bonds and prerefunded bonds.

Notice Regarding Index Data

“Bloomberg®” and the Bloomberg indices listed herein (the “Indices”) are service marks of Bloomberg Finance L.P. and its affiliates, including Bloomberg Index Services Limited (“BISL”), the administrator of the index (collectively, “Bloomberg”), and will be licensed for use for certain purposes by the distributor hereof (the “Licensee”).

The financial products named herein (the “Products”) are not sponsored, endorsed, sold or promoted by Bloomberg. Bloomberg does not make any representation or warranty, express or implied, to the owners of or counterparties to the Products or any member of the public regarding the advisability of investing in securities or commodities generally or in the Product particularly. The only relationship of Bloomberg to Licensee is the licensing of certain trademarks, trade names and service marks and of the Indices, which are determined, composed and calculated by BISL without regard to Licensee or the Products. Bloomberg has no obligation to take the needs of Licensee or the owners of the Products into consideration in determining, composing or calculating the Indices. Bloomberg is not responsible for and has not participated in the determination of the timing, price, or quantities of the Products to be issued. Bloomberg shall not have any obligation or liability, including, without limitation, to customers of the Products, in connection with the administration, marketing or trading of the Products.

BLOOMBERG DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE INDICES OR ANY DATA RELATED THERETO AND SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS OR INTERRUPTIONS THEREIN. BLOOMBERG DOES NOT MAKE ANY WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY LICENSEE, OWNERS OF THE PRODUCT OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE INDICES OR ANY DATA RELATED THERETO. BLOOMBERG DOES NOT MAKE ANY EXPRESS OR IMPLIED WARRANTIES AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE INDICES OR ANY DATA RELATED THERETO. WITHOUT LIMITING ANY OF THE FOREGOING, TO THE MAXIMUM EXTENT ALLOWED BY LAW, BLOOMBERG, ITS LICENSORS, AND ITS AND THEIR RESPECTIVE EMPLOYEES, CONTRACTORS, AGENTS, SUPPLIERS, AND VENDORS SHALL HAVE NO LIABILITY OR RESPONSIBILITY WHATSOEVER FOR ANY INJURY OR DAMAGES—WHETHER DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL, PUNITIVE OR OTHERWISE—ARISING IN CONNECTION WITH THE PRODUCT OR INDICES OR ANY DATA OR VALUES RELATING THERETO—WHETHER ARISING FROM THEIR NEGLIGENCE OR OTHERWISE, EVEN IF NOTIFIED OF THE POSSIBILITY THEREOF.

Portfolio Holdings Information

Each day the Fund is open for business, the Trust publicly disseminates the Fund’s full portfolio holdings as of the close of the previous day through the website. A description of the Fund’s policies and procedures with respect to the disclosure of the Fund’s portfolio holdings is available in the Fund’s SAI. The holdings of the Fund can be found on the Fund’s website at www.americanbeaconfunds.com/products/etfs/american-beacon-aberdeen-municipal-high-income-etf/.

Fund Management

The Manager

AMERICAN BEACON ADVISORS, INC. (the “Manager”) serves as the Manager and administrator of the Fund. The Manager, located at 220 East Las Colinas Boulevard, Suite 1200, Irving, Texas 75039, is an indirect wholly-owned subsidiary of Resolute Topco, Inc. (“Topco”), which is owned primarily by various institutional investment funds that are managed by financial institutions and other investment advisory firms. No owner of Topco owns 25% or more of the outstanding equity or voting interests of Topco.

The Manager was organized in 1986 to provide investment management, advisory, and administrative services. The Manager is registered as an investment adviser under the Advisers Act. The Manager, on behalf of the Fund, has filed a notice claiming the CFTC Regulation 4.5 exclusion from registration as a CPO under the Commodity Exchange Act, and the Manager is also exempt from registration as a commodity trading advisor under CFTC Regulation 4.14(a)(8) with respect to the Fund.

Under the Fund’s management agreement with the Manager (the “Management Agreement”), the Manager has agreed to pay all expenses of the Fund, except for the management fee payments to the Manager under the Management Agreement (also known as a “unitary advisory fee”), acquired fund fees and expenses, brokerage commissions and issue and transfer taxes relating to the purchase and sale of portfolio holdings, securities lending fees, interest expense, expenses associated with securities sold short, costs, expenses or losses arising out of any liability or claim asserted against the Trust or Fund for violation of any law, distribution and service fees pursuant to a Rule 12b-1 plan (if any), all costs associated with proxies and shareholder meetings, except meetings related to changes to the Management Agreement, the election of any Board member who is an “interested person” of the Trust as defined in Section 2(a)(19) of the Investment Company Act, and/or other matters that directly benefit the Manager, taxes and governmental fees, and extraordinary expenses (including fees and disbursements of counsel).

The Fund’s Management Agreement with the Manager provides for the Fund to pay the Manager an annualized management fee equal to 0.55% of the Fund’s average daily net assets that is calculated and accrued daily. As of the date of this Prospectus, the Fund had not commenced operations and has not paid management fees to the Manager.

As compensation for services provided by the Manager in connection with securities lending activities conducted by the Fund, the lending Fund pays to the Manager, with respect to cash collateral posted by borrowers, a fee of 10% of the net monthly investment income (the income earned in the form of interest, dividends and realized capital gains from the investment of cash collateral, plus any negative rebate fees paid by borrowers, less the rebate amount paid to borrowers as well as related expenses) and, with respect to collateral other than cash, a fee up to 10% of loan fees and demand premiums paid by borrowers. The SEC has granted exemptive relief that permits the Fund to invest cash collateral received from securities lending transactions in shares of one or more private or registered investment companies managed by the Manager.

As of the date of this Prospectus, the Fund does not intend to engage in securities lending activities.

A discussion of the Board’s consideration and approval of the Management Agreement between the Trust, on behalf of the Fund, and the Manager and the Investment Advisory Agreement between the Manager and the sub-advisor will be available in the Fund’s initial Form N-CSR.

The Sub-Advisor

Set forth below is a brief description of the sub-advisor and the portfolio managers who have joint and primary responsibility for the day-to-day management of the Fund. The Fund’s SAI provides additional information about the portfolio managers, including other accounts they manage, their ownership in the Fund and their compensation.

abrdn Inc. (“Aberdeen”), 1900 Market Street, Suite 200, Philadelphia, Pennsylvania, 19103, is a U.S. registered investment adviser. Aberdeen is a direct wholly-owned subsidiary of abrdn Holdings Limited, which has its registered offices at 1 George Street, Edinburgh, Scotland EH2 2LL. abrdn Holdings Limited is a direct wholly-owned subsidiary of Aberdeen Group plc (“abrdn”), a London stock exchange listed company. abrdn and its affiliates managed approximately $505.7 billion in assets as of March 31, 2026. abrdn and its affiliates provide asset management and investment solutions for clients and customers worldwide.

Jonathan E. Mondillo, Global Head of Fixed Income is responsible for overseeing all public and private markets fixed income teams globally, which include Developed Market Credit, Emerging Market Debt, Liquidity & Rates and Private Credit. He is further responsible for five municipal bond and infrastructure debt funds that invest in both investment grade and high yield credits. He joined the firm in 2018 from Alpine Woods Capital Investors, LLC, when two mutual funds he managed were acquired by Aberdeen. Prior to that, he worked for Fidelity Capital Markets. Mr. Mondillo graduated with a B.S. in Finance from Bentley University.

Miguel Laranjeiro, Investment Director in the Municipal team where he is responsible for asset allocation and investment management decisions for the municipal suite of products, which includes infrastructure debt as well as both investment grade and below investment grade debt strategies. His experience includes municipal credit analysis in the high yield sector as well as high grade tax-backed sectors. He joined the firm in 2018 from Alpine Woods Capital Investors, LLC where he was focused on credit analysis in the Public Finance sector for Alpine’s two municipal mutual funds, which were acquired by Aberdeen. Prior to that, he worked for Thomson Reuters as an analyst focused primarily on Fundamentals Analysis in the Emerging Markets sectors. Mr. Laranjeiro graduated with a B.S. in Economics from State University of New York.

The Distributor

Foreside Financial Services, LLC, a wholly owned subsidiary of Foreside Financial Group, LLC (doing business as ACA Group) (“Distributor”) serves as the Fund’s distributor.

The Distributor distributes Creation Units for the Fund on a best efforts basis. Shares in less than Creation Units are not distributed by the Distributor, and the Distributor does not maintain a secondary market in the shares of the Fund. The Distributor has no role in determining the policies of the Fund or the securities that are purchased or sold by the Fund. The Distributor’s principal address is 190 Middle Street, Suite 301, Portland, Maine 04101.

Valuation of Shares

The Fund’s NAV per share is computed by adding total assets, subtracting all of the Fund’s liabilities, and dividing the result by the total number of shares outstanding, which may differ from the Fund’s market price. Investors that purchase and sell the Fund in the secondary market will transact at market prices, which may be lower or higher than the NAV per share.

The NAV per share of the Fund’s shares is determined based on a pro rata allocation of the Fund’s investment income, expenses and total capital gains and losses. The Fund’s NAV per share is determined each business day as of the regular close of trading on the NYSE, which is typically 4:00 p.m. Eastern Time. However, if trading on the NYSE closes at a time other than 4:00 p.m. Eastern Time, the Fund’s NAV per share typically would still be determined as of the regular close of trading on the NYSE. The Fund does not price its shares on days that the NYSE is closed. Foreign exchanges may permit trading in foreign securities on days when the Fund is not open for business, which may result in the value of the Fund’s portfolio investments being affected at a time when you are unable to buy or sell shares.

Equity securities and certain derivative instruments that are traded on an exchange are valued based on market value. Certain derivative instruments (other than short-term securities) usually are valued on the basis of prices provided by a pricing service. The price of debt securities generally is determined using pricing services or quotes obtained from broker/dealers who may consider a number of inputs and factors, such as comparable characteristics, yield curve, credit spreads, estimated default rates, coupon rates, underlying collateral and estimated cash flow. Investments in mutual funds are valued at the closing NAV per share of the mutual funds on the day of valuation. Equity securities, including shares of closed-end funds and ETFs, are valued at the last sale price or official closing price.

The valuation of securities traded on foreign markets and certain fixed-income securities will generally be based on prices determined as of the earlier closing time of the markets on which they primarily trade, unless a significant event has occurred. When the Fund holds securities or other assets that are denominated in a foreign currency, the exchange rates as of 4:00 p.m. Eastern Time will normally be used.

Rule 2a-5 under the Investment Company Act (the “Valuation Rule”) establishes requirements for determining fair value in good faith for purposes of the Investment Company Act, including related oversight and reporting requirements. The rule also defines when market quotations are “readily available” for purposes of the Investment Company Act, the threshold for determining whether the Fund must fair value a security.

The Valuation Rule permits the Fund’s board to designate the Fund’s primary investment adviser as “valuation designee” to perform the Fund’s fair value determinations subject to board oversight and certain reporting and other requirements intended to ensure that the registered investment company’s board receives the information it needs to oversee the investment adviser’s fair value determinations. The Board has designated the Manager as valuation designee under the Valuation Rule to perform fair value functions in accordance with the requirements of the Valuation Rule.

Securities may be valued at fair value, as determined in good faith and pursuant to the Manager’s procedures. For example, fair value pricing will be used when market quotations are not readily available or reliable, as determined by the Manager, such as for fixed-income securities and when: (i) trading for a security is restricted or stopped; (ii) a security’s trading market is closed (other than customary closings); or (iii) a security has been de-listed from a national exchange. A security with limited market liquidity may require fair value pricing if the Manager determines that the available price does not reflect the security’s true market value. In addition, if a significant event that the Manager determines to affect the value of one or more securities held by the Fund occurs after the close of a related exchange but before the determination of the Fund’s NAV per share, fair value pricing may be used on the affected security or securities. Securities of small-capitalization companies are also more likely to require a fair value determination using these procedures because they are more thinly traded and less liquid than the securities of larger capitalization companies. Securities may be fair valued as a result of significant events occurring after the close of the foreign markets in which the Fund invests. In addition, the Fund may invest in illiquid securities requiring these procedures.

Attempts to determine the fair value of securities introduce an element of subjectivity to the pricing of securities. As a result, the price of a security determined through fair valuation techniques may differ from the price quoted or published by other sources and may not accurately reflect the market value of the security when trading resumes. If a reliable market quotation becomes available for a security formerly valued through fair valuation techniques, the

Manager compares the new market quotation to the fair value price to evaluate the effectiveness of the Fund’s fair valuation procedures. You may view the Fund’s most recent NAV per share at www.americanbeaconfunds.com by clicking on ‘‘Quick Links’’ and then ‘‘Daily NAVs.’’

About Your Investment

Purchase and Redemption of Shares

Shares of the Fund may be purchased or redeemed directly from the Fund only in Creation Units or multiples thereof. Only a broker-dealer that enters into an Authorized Participant agreement with the Distributor (an “Authorized Participation Agreement”) may engage in creation and redemption transactions directly with the Fund. Purchases and redemptions directly with the Fund must follow the Fund’s procedures, and are subject to transaction fees, which are described in the SAI. Orders for such transactions may be rejected or delayed if they are not submitted in good order and subject to the other conditions set forth in this Prospectus and the SAI. Please see the SAI for more information about purchases and redemptions of Creation Units.

Once purchased (i.e., created) by an Authorized Participant, shares are listed on the Exchange and trade in the secondary market. When you buy or sell the Fund’s shares in the secondary market, you will pay or receive the market price. The price at which you buy or sell shares (i.e., the market price) may be more or less than the NAV of the shares. Unless imposed by your broker, there is no minimum dollar amount you must invest in the Fund and no minimum number of Shares you must buy. Shares can be bought and sold throughout the trading day like other publicly traded securities. Most investors will buy and sell shares through a broker and, thus, will incur customary brokerage commissions and charges when buying or selling shares. Except when aggregated in Creation Units, shares are not redeemable by the Fund.

The secondary markets are closed on weekends and also are generally closed on the following holidays: New Year’s Day, Martin Luther King Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day, but may be closed at other times. When a holiday observed by the Exchange falls on a Saturday, the Exchange will not be open for business on the preceding Friday unless unusual business conditions exist, such as the ending of a monthly or yearly accounting period.

For more information on how to buy and sell shares of the Fund, call 1-833-471-3562 or visit www.americanbeaconfunds.com.

Premium/Discount Information

Information showing the number of days the market price of the Fund’s shares was greater than the Fund’s NAV per share (i.e., at a premium) and the number of days it was less than the Fund’s NAV per share (i.e., at a discount) for various time periods will be available by visiting the Fund’s website at www.americanbeaconfunds.com/products/etfs/american-beacon-aberdeen-municipal-high-income-etf/. The premium and discount information contained on the website will represent past performance and cannot be used to predict future results.

Investments by Registered Investment Companies

Section 12(d)(1) of the Investment Company Act restricts investments by investment companies in the securities of other investment companies, including shares of the Fund. Registered investment companies are permitted to invest in the Fund beyond the limits set forth in Section 12(d)(1) subject to compliance with Rule 12d1-4 under the Investment Company Act, including, in certain cases, that such investment companies enter into an agreement with the Fund.

Continuous Offering

The method by which Creation Units of Fund shares are created and traded may raise certain issues under applicable securities laws. Because new Creation Units of shares are issued and sold by the Fund on an ongoing basis, a “distribution,” as such term is used in the Securities Act of 1933 (the “Securities Act”), may occur at any point. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner which could render them statutory underwriters and subject them to the prospectus delivery requirement and liability provisions of the Securities Act.

For example, a broker-dealer firm or its client may be deemed a statutory underwriter if it takes Creation Units after placing an order with the Distributor, breaks them down into constituent shares and sells the shares directly to customers or if it chooses to couple the creation of a supply of new shares with an active selling effort involving solicitation of secondary market demand for shares. A determination of whether one is an underwriter for purposes of the Securities Act must take into account all the facts and circumstances pertaining to the activities of the broker-dealer or its client in the particular case, and the examples mentioned above should not be considered a complete description of all the activities that could lead to a characterization as an underwriter.

Broker-dealer firms should also note that dealers who are not “underwriters” but are effecting transactions in shares, whether or not participating in the distribution of shares, are generally required to deliver a prospectus. This is because the prospectus delivery exemption in Section 4(3) of the Securities Act is not available in respect of such transactions as a result of Section 24(d) of the Investment Company Act. As a result, broker-dealer firms should note that dealers who are not “underwriters” but are participating in a distribution (as contrasted with engaging in ordinary secondary market transactions) and thus dealing with the shares that are part of an overallotment within the meaning of Section 4(3)(C) of the Securities Act, will be unable to take advantage of the prospectus delivery exemption provided by Section 4(3) of the Securities Act. For delivery of prospectuses to exchange members, the prospectus delivery mechanism of Rule 153 under the Securities Act is only available with respect to transactions on a national exchange.

Dealers effecting transactions in the Fund’s shares, whether or not participating in this distribution, are generally required to deliver a prospectus. This is in addition to any obligation of dealers to deliver a prospectus when acting as underwriters.

Beneficial Ownership

The Depository Trust Company (“DTC”) serves as securities depository for the Fund’s shares. DTC, or its nominee, is the owner of record for all outstanding shares. Beneficial owners of the Fund’s shares are not entitled to have shares registered in their names, will not receive or be entitled to receive physical delivery of certificates in definitive form and are not considered the registered holder thereof. Accordingly, to exercise any rights of a holder of shares, each beneficial owner must rely on the procedures of: (i) DTC; (ii) the securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations, some of whom (and/or their representatives) own DTC (“DTC Participants”), and (iii) brokers, dealers, banks and trust companies that clear through or maintain a custodial relationship with a DTC Participant, either directly or indirectly, through which such beneficial owner holds its interests (“Indirect Participants”). The Trust understands that, under existing industry practice, in the event the Fund requests any action of holders of shares, or a beneficial owner desires to take any action that DTC, as the record owner of all outstanding shares, is entitled to take, DTC would authorize the DTC Participants to take such action and that the DTC Participants would authorize the Indirect Participants and beneficial owners acting through such DTC Participants to take such action and would otherwise act upon the instructions of beneficial owners owning through them. For more detailed information, see “Book Entry Only System” in the Fund’s Statement of Additional Information.

Payments to Financial Intermediaries

The Manager and/or the Manager’s affiliates (at their own expense) may pay compensation to financial intermediaries for shareholder-related services and, if applicable, distribution-related services, including administrative, sub-transfer agency type, recordkeeping and shareholder communication services. Such payments, which may be significant to the intermediary, are not made by the Fund. Rather, such payments are made by the Manager or its affiliates from their own resources, and constitute what it sometimes referred to as “revenue sharing.”

The amount of compensation paid to different financial intermediaries may differ. The compensation paid to a financial intermediary may be based on a variety of factors, including average assets under management in accounts distributed and/or serviced by the financial intermediary, gross sales by the financial intermediary and/or the number of accounts serviced by the financial intermediary that invest in the Fund.

Compensation received by a financial intermediary from the Manager or an affiliate of the Manager may include payments for marketing and/or training expenses incurred by the financial intermediary, including expenses incurred by the financial intermediary in educating (itself and) its salespersons with respect to Fund shares. For example, such compensation may include reimbursements for expenses incurred in attending educational seminars regarding the Fund, including travel and lodging expenses. It may also cover the development of technology platforms and reporting systems, data provision services, financial intermediaries making shares of the Fund available to sales representatives and/or customers of a fund supermarket platform or similar program sponsor, services provided in connection with such fund supermarket platforms and programs, or costs incurred by financial intermediaries in connection with their efforts to sell Fund shares, including costs incurred compensating (registered) sales representatives and preparing, printing and distributing sales literature.

Any compensation received by a financial intermediary and the prospect of receiving it may create conflicts of interest between the intermediary and its customers and may provide the financial intermediary with an incentive to recommend the shares of the Fund or another fund in the American Beacon Funds Complex over other potential investments, and may cause it to make decisions about the level of services provided to its customers based on the payments or other financial incentives it is eligible to receive. Similarly, the compensation may cause financial intermediaries to elevate the prominence of the Fund within their organization by, for example, placing it on a list of preferred funds. You can contact your financial intermediary for details about any such payments it receives from the Manager or its affiliates, or any other fees, expenses, or commissions your financial intermediary may charge you in addition to those disclosed in this Prospectus.

Frequent Trading and Market Timing

The Trust’s Board has determined not to adopt policies and procedures designed to prevent or monitor for frequent purchases and redemptions of the Fund’s shares because the Fund sells and redeems its shares at NAV only in Creation Units pursuant to the terms of an Authorized Participant Agreement between the Authorized Participant and the Distributor, and such direct trading between the Fund and Authorized Participants is critical to ensuring that the Fund’s shares trade at or close to NAV. Further, the vast majority of trading in Fund shares occurs on the secondary market, which does not involve the Fund directly and therefore does not cause the Fund to experience many of the harmful effects of market timing, such as dilution and disruption of portfolio management. In addition, the Fund imposes a transaction fee on Creation Unit transactions, which is designed to offset transfer and other transaction costs incurred by the Fund in connection with the issuance and redemption of Creation Units and may employ fair valuation pricing to minimize potential dilution from market timing. The Fund reserves the right to reject any purchase order at any time and reserves the right to impose restrictions on disruptive, excessive, or short-term trading.

Distributions and Taxes

The Fund distributes most or all of its net earnings and realized gains, if any, each taxable year in the form of dividends from net investment income (“dividends”) on a monthly basis and distributions of realized net capital gains (“capital gains distributions”) and net gains from foreign currency transactions (sometimes referred to below collectively as “other distributions”) on an annual basis (and dividends, capital gains distributions, and other distributions are sometimes referred to below collectively as “distributions”). Different tax treatment applies to different types of distributions (as described in the table under “Taxes”).

The Fund does not have a fixed dividend rate and does not guarantee that it will pay any distributions in any particular period. Any dividends are paid monthly, and capital gains distributions and other distributions are paid annually.

No dividend reinvestment service is provided by the Fund. Financial intermediaries may make available the DTC book-entry Dividend Reinvestment Service for use by beneficial owners of Fund shares for reinvestment of their dividend distributions. Beneficial owners should contact their financial intermediary to determine the availability and costs of the service and the details of participation therein. Financial intermediaries may require beneficial owners to adhere to specific procedures and timetables. If this service is available and used, dividend distributions of both income and net capital gains will be automatically reinvested in additional whole shares of the Fund purchased in the secondary market.

Distributions of Fund income are generally taxable to you regardless of the manner in which they are received or reinvested.

Taxes

Fund distributions are taxable to shareholders other than tax-qualified retirement plans and accounts and other tax-exempt investors. However, the portion of the Fund’s dividends derived from its investments in U.S. Government obligations, if any, is generally exempt from state and local income taxes. Fund dividends, except those that are “qualified dividend income” (as described below), are subject to federal income tax at the rates for ordinary income contained in the Internal Revenue Code. The following table outlines the typical status of transactions in taxable accounts:


Type of Transaction	Federal Tax Status
Dividends from net investment income*	Ordinary income**
Distributions of the excess of net short-term capital gain over net long-term capital loss*	Ordinary income
Distributions of net gains from certain foreign currency transactions*	Ordinary income
Distributions of the excess of net long-term capital gain over net short-term capital loss (“net capital gain”)*	Long-term capital gains
Sales of shares owned for more than one year	Long-term capital gains or losses
Sales of shares owned for one year or less	Net gains are taxed at the same rate as ordinary income; net losses are subject to special rules

*	Whether reinvested or taken in cash.

**	Except for dividends that are attributable to ‘‘qualified dividend income,’’ if any.

To the extent distributions are attributable to net capital gain that the Fund recognizes they are subject to a 15% maximum federal income tax rate for individual and certain other non-corporate shareholders (each, an ‘‘individual’’) (20% for individuals with taxable income exceeding certain thresholds, which are indexed for inflation annually), regardless of how long the shareholder held his or her Fund shares. A portion of the dividends the Fund pays to individuals may be ‘‘qualified dividend income’’ (‘‘QDI’’) and thus eligible for the preferential rates, mentioned above, that apply to net capital gain. QDI is the aggregate of dividends the Fund receives on shares of most domestic corporations (excluding most distributions from REITs) and certain foreign corporations with respect to which the Fund satisfies certain holding period and other restrictions. To be eligible for those rates, a shareholder must meet similar restrictions with respect to his or her Fund shares.

A portion of the dividends the Fund pays may also be eligible for the dividends-received deduction allowed to corporations (“DRD”), subject to similar holding period and other restrictions, but the eligible portion may not exceed the aggregate dividends the Fund receives from domestic corporations only.

A shareholder may realize a taxable gain or loss when selling shares. That gain or loss is treated as a short-term or long-term capital gain or loss, depending on how long the shares were held. Any capital gain an individual shareholder recognizes on a sale of Fund shares that have been held for more than one year will qualify for the 15% and 20% tax rates mentioned above.

An individual must pay a 3.8% tax on the lesser of (1) the individual’s ‘‘net investment income,’’ which generally includes distributions the Fund pays and net gains realized on the sale or exchange of Fund shares, or (2) the excess of the individual’s ‘‘modified adjusted gross income’’ over a threshold amount ($250,000 for married persons filing jointly and $200,000 for single taxpayers). This tax is in addition to any other taxes due on that income. A similar tax applies to estates and trusts. Shareholders should consult their own tax advisers regarding the effect, if any, this tax may have on their investment in Fund shares.

Each year, the Fund’s shareholders will receive tax information regarding Fund distributions and dispositions of Fund shares to assist them in preparing their income tax returns.

The foregoing is only a summary of some of the important federal income tax considerations that may affect Fund shareholders, who should consult their tax advisers regarding specific questions as to the effect of federal, state and local income taxes on an investment in the Fund.

Taxes on Creations and Redemptions of Creation Units
A person who purchases a Creation Unit by exchanging securities in-kind generally will recognize a gain or loss equal to the difference between (i) the sum of the market value of the Creation Units at the time of the exchange and any net amount of cash received by the Authorized Participant in the exchange and (ii) the sum of the purchaser’s aggregate basis in the securities surrendered and any net amount of cash paid for the Creation Units. A person who redeems Creation Units and receives securities in-kind from the Fund will generally recognize a gain or loss equal to the difference between the redeemer’s basis in the Creation Units, and the aggregate market value of the securities received and any net cash received. The IRS, however, may assert that a loss realized upon an in-kind exchange of securities for Creation Units or an exchange of Creation Units for securities cannot be deducted currently under the rules governing “wash sales,” or on the basis that there has been no significant change in economic position. Persons effecting in-kind creations or redemptions should consult their own tax adviser with respect to these matters.

The Fund has the right to reject an order for Creation Units if the purchaser (or a group of purchasers) would, upon obtaining the shares so ordered, own 80% or more of the outstanding shares of the Fund and if, pursuant to section 351 of the Internal Revenue Code, the Fund would have a basis in the deposit securities different from the market value of such securities on the date of deposit. The Fund also has the right to require information necessary to determine beneficial share ownership for purposes of the 80% determinations.

Additional Information

The Fund’s Board oversees generally the operations of the Fund. The Trust enters into contractual arrangements with various parties, including among others, the Fund’s manager, sub-advisor(s), custodian, transfer agent, and accountants, who provide services to the Fund. Shareholders are not parties to any such contractual arrangements, and those contractual arrangements are not intended to create in any shareholder any right to enforce them directly against the service providers or to seek any remedy under them directly against the service providers.

This Prospectus provides information concerning the Fund that you should consider in determining whether to purchase Fund shares. Neither this Prospectus nor the SAI is intended, or should be read, to be or create an agreement or contract between the Trust or the Fund and any investor, or to create any rights in any shareholder or other person other than any rights under federal or state law that may not be waived. Nothing in this Prospectus, the SAI or the Fund’s reports to shareholders is intended to provide investment advice and should not be construed as investment advice.

Distribution Plan

The Fund has adopted a Distribution Plan in accordance with Rule 12b-1 under the Investment Company Act, which allows the Fund to pay distribution and other fees for the sale of Fund shares and for other services provided to shareholders. The Plan also authorizes the use of any fees received by the Manager in accordance with the Management Agreement, and any fees received by the sub-advisor pursuant to its Investment Advisory Agreement, to be used for the sale and distribution of Fund shares. The Plan provides that the shares of the Fund may pay up to 0.25% per annum of the average daily net assets attributable to the shares, to the Manager (or another entity approved by the Board). Because these fees would be paid out of the Fund’s assets on an ongoing basis, over time these fees would increase the cost of your investment and may cost you more than paying other types of sales charges. There is no present intention of Fund shares paying, accruing, or incurring any Rule 12b-1 fees and Fund shares will not pay, accrue or incur any Rule 12b-1 fees until such time as approved by the Fund’s Board.

Portfolio Holdings

Each day the Fund is open for business, the Trust publicly disseminates the Fund’s full portfolio holdings as of the close of business on the previous day through the Fund’s website at www.americanbeaconfunds.com. A description of the Fund’s policies and procedures regarding the disclosure of portfolio holdings is available in the Fund’s SAI, which you may also access on the Fund’s website at www.americanbeaconfunds.com or by calling 1-833-471-3562 to request a free copy.

Delivery of Documents

The summary prospectus is available, and the Annual Shareholder Report and Semi-Annual Shareholder Report (“Shareholder Reports”) will be available, online at www.americanbeaconfunds.com/fund-resources/. If you are interested in electronic delivery of the Fund’s summary prospectus or Shareholder Reports, please go to www.americanbeaconfunds.com and click on ‘‘Quick Links’’ and then ‘‘Register for E-Delivery.’’

Additional Information

Additional information about the Fund is found in the documents listed below. Request a free copy of these documents by calling 1-833-471-3562 or you may access them on the Fund’s website at www.americanbeaconfunds.com.

Annual Shareholder Report/Semi-Annual Shareholder Report and Form N-CSR

The Fund’s Annual and Semi-Annual Shareholder Reports and Form N-CSR will include additional information about the Fund’s investments. The Fund’s Annual Shareholder Report will also include a discussion by the Manager of market conditions and investment strategies that materially affected the Fund’s performance during the reporting period. The Form N-CSR will include the Fund’s annual and semi-annual financial statements, as well as the report of the Fund’s independent registered public accounting firm in the annual financial statements. Reports will be available approximately 60 days after the Fund passes its first annual and semi-annual reporting periods.

SAI

The SAI contains more details about the Fund and its investment policies. The SAI is incorporated in this Prospectus by reference (it is legally part of this Prospectus). A current SAI is on file with the SEC.

To obtain more information about the Fund, such as the Fund’s financial statements, or to request a copy of the documents listed above:


By Telephone:	Call 1-833-471-3562
By Mail:	American Beacon Select Funds c/o Foreside Financial Services, LLC 190 Middle Street, Suite 301 Portland, Maine 04101
By E-mail:	[email protected]
On the Internet:	Visit our website at www.americanbeaconfunds.com Visit the SEC website at www.sec.gov

The SAI and other information about the Fund are available on the EDGAR Database on the SEC’s Internet site at www.sec.gov. Copies of this information may be obtained, after paying a duplicating fee, by electronic mail to [email protected], or by writing to the SEC’s Public Reference Section, 100 F Street, NE, Washington, D.C. 20549-1520. The SAI and other information about the Fund may also be reviewed and copied at the SEC’s Public Reference Room. Information on the operation of the SEC’s Public Reference Room may be obtained by calling the SEC at (202) 551-8090.


Advisers Act	Investment Advisers Act of 1940, as amended
American Beacon or Manager	American Beacon Advisors, Inc.
Board	Board of Trustees
Capital Gains Distributions	Distributions of realized net capital gains
CFTC	Commodity Futures Trading Commission
CPO	Commodity Pool Operator
Denial of Services	A cybersecurity incident that results in shareholders or service providers being unable to access electronic systems
Distributor	Foreside Financial Services, LLC
Dividends	Distributions from the Fund’s net investment income
DRD	Dividends-received deduction
DTC	Depository Trust Company
ETF	Exchange-traded Fund
EU	European Union
Exchange	NYSE Arca, Inc., a national securities exchange on which shares of the Fund are listed
Forwards	Foreign Currency Forward Contracts
Internal Revenue Code	Internal Revenue Code of 1986, as amended
Investment Company Act	Investment Company Act of 1940, as amended
IRA	Individual Retirement Account
IRS	Internal Revenue Service
Management Agreement	The Fund’s Management Agreement with the Manager
NAV	Fund’s net asset value
NDF	Non-deliverable foreign currency forward contract
NYSE	New York Stock Exchange
Other Distributions	Distributions of net gains from foreign currency transactions
OTC	Over-the-Counter
QDI	Qualified Dividend Income
REIT	Real Estate Investment Trust
RIC	Regulated Investment Company
SAI	Statement of Additional Information
SEC	Securities and Exchange Commission
Select Funds or Trust	American Beacon Select Funds
State Street	State Street Bank and Trust Company
UK	United Kingdom


Fund Summary
American Beacon Aberdeen Municipal High Income ETF	1
Additional Information About the Fund
Additional Information About Investment Policies and Strategies	7
Additional Information About the Management of the Fund	7
Additional Information About Investments	7
Additional Information About Risks	8
Additional Information About Performance Index	15
Portfolio Holdings Information	15
Fund Management
The Manager	15
The Sub-Advisor	16
The Distributor	16
Valuation of Shares	16
About Your Investment
Purchase and Redemption of Shares	17
Frequent Trading and Market Timing	18
Distributions and Taxes	18
Additional Information
Distribution Plan	19
Portfolio Holdings	19
Delivery of Documents	19
Financial Highlights	20
Back Cover
Appendix
Appendix A: Glossary	A-1


American Beacon is a registered service mark of American Beacon Advisors, Inc. American Beacon Select Funds and American Beacon Aberdeen Municipal High Income ETF are service marks of American Beacon Advisors, Inc.