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back cover |
| (a) | For all securities other than those specifically described below, ratings are assigned to underlying securities utilizing ratings from Moody’s, Fitch, and Standard & Poor’s rating agencies and applying the following hierarchy: If all three agencies provide a rating, the middle rating (after dropping the highest and lowest ratings) is assigned; if two of the three agencies rate a security, the lower of the two is assigned. If none of the 3 rating agencies above assign a rating, but the security is rated by DBRS Morningstar, then the DBRS Morningstar rating is assigned. If none of the 4 rating agencies listed above rate the security, but the security is rated by the Kroll Bond Rating Agency (KBRA), then the KBRA rating is assigned. Ratings are shown in the S&P and Fitch scale (e.g., AAA). Securities rated BBB or higher are considered investment grade. All ratings are subject to change. U.S. Government includes securities issued by the U.S. Department of the Treasury. Federal Agencies includes rated and unrated U.S. Agency fixed-income securities, U.S. Agency mortgage-backed securities, and collateralized mortgage obligations of U.S. Agency mortgage-backed securities. |
| (d) | Duration is a measure of how much a bond’s price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value due to the interest rate move. The Average Duration calculation reflects the impact of the equivalent exposure of derivative positions, if any. |
| (i) | For purposes of this presentation, the components include the value of securities, and reflect the impact of the equivalent exposure of derivative positions, if any. These amounts may be negative from time to time. Equivalent exposure is a calculated amount that translates the derivative position into a reasonable approximation of the amount of the underlying asset that the portfolio would have to hold at a given point in time to have the same price sensitivity that results from the portfolio’s ownership of the derivative contract. When dealing with derivatives, equivalent exposure is a more representative measure of the potential impact of a position on portfolio performance than value. The bond component will include any accrued interest amounts. |
| (m) | In determining each instrument’s effective maturity for purposes of calculating the fund’s dollar-weighted average effective maturity, MFS uses the instrument’s stated maturity or, if applicable, an earlier date on which MFS believes it is probable that a maturity-shortening feature (such as a put, pre-refunding or prepayment) will cause the instrument to be repaid. Such an earlier date can be substantially shorter than the instrument’s stated maturity. |
| (o) | Less than 0.1%. |
| (q) | For purposes of this presentation, Other includes equivalent exposure from currency derivatives and/or any offsets to derivative positions and may be negative. |
| (v) | For purposes of this presentation, market value of fixed income and/or equity derivatives, if any, is included in Cash & Cash Equivalents. |
| Portfolio Manager | Primary Role | Since | Title and Five Year History |
| Geoffrey Schechter | Lead Portfolio Manager | 2017 | Investment Officer of MFS; employed in the investment management area of MFS since 1993. |
| Alexander Mackey | Investment Grade Debt Instruments Portfolio Manager | 2017 | Co-Chief Investment Officer-Global Fixed Income of MFS; employed in the investment management area of MFS since 2001. |
| Jake Stone | U.S. Government Securities Portfolio Manager | 2023 | Investment Officer of MFS; employed in the investment management area of MFS since 2018. |
| Issuer | Shares/Par | Value ($) | ||
| Bonds – 98.4% | ||||
| Aerospace & Defense – 0.5% | ||||
| Huntington Ingalls Industries, Inc., 3.844%, 5/01/2025 | $ | 1,486,000 | $1,486,000 | |
| Asset-Backed & Securitized – 9.2% | ||||
| 3650R Commercial Mortgage Trust, 2021-PF1, “XA”, 1.113%, 11/15/2054 (i) | $ | 10,273,571 | $412,453 | |
| ACREC 2021-FL1 Ltd., “AS”, FLR, 5.934% ((SOFR - 1mo. + 0.11448%) + 1.5%), 10/16/2036 (n) | 1,087,000 | 1,079,354 | ||
| Alinea CLO Ltd., 2018-1A, “AR”, FLR, 5.169% (SOFR - 3mo. + 0.9%), 7/20/2031 (n) | 356,484 | 356,081 | ||
| American Credit Acceptance Receivables Trust, 2024-2, “A”, 5.9%, 2/12/2027 (n) | 294,799 | 295,174 | ||
| AmeriCredit Automobile Receivables Trust, 2024-1, “A”, 5.61%, 1/12/2027 (n) | 5,394 | 5,396 | ||
| AmeriCredit Automobile Receivables Trust, 2024-1, “A2-B”, FLR, 4.947% (SOFR - 1mo. + 0.6%), 2/18/2028 | 556,619 | 556,236 | ||
| Angel Oak Mortgage Trust, 2024-10, “A1”, 5.348%, 10/25/2069 (n) | 1,458,683 | 1,455,362 | ||
| Arbor Realty Trust, Inc., CLO, 2021-FL3, “AS”, FLR, 5.836% ((SOFR - 1mo. + 0.11448%) + 1.4%), 8/15/2034 (n) | 1,112,500 | 1,103,805 | ||
| AREIT 2022-CRE6 Trust, “AS”, FLR, 6% (SOFR - 30 day + 1.65%), 1/20/2037 (n) | 1,522,500 | 1,513,178 | ||
| ARI Fleet Lease Trust, 2023-B, “A2”, 6.05%, 7/15/2032 (n) | 172,171 | 173,522 | ||
| ARI Fleet Lease Trust, 2025-A, “A2”, 4.38%, 1/17/2034 (n) | 298,000 | 297,626 | ||
| BDS 2021-FL9 Ltd., “A”, FLR, 5.504% ((SOFR - 1mo. + 0.11448%) + 1.07%), 11/16/2038 (n) | 285,462 | 284,338 | ||
| BDS 2024-FL13 Ltd., “A”, FLR, 5.896% (SOFR - 1mo. + 1.5762%), 9/19/2039 (n) | 305,500 | 303,629 | ||
| Brazos Securitization LLC, 5.014%, 9/01/2031 (n) | 614,343 | 627,100 | ||
| Bridgecrest Lending Auto Securitization Trust, 2024-2, “A2”, 5.78%, 2/16/2027 | 93,674 | 93,722 | ||
| BSPDF 2021-FL1 Issuer Ltd., “A”, FLR, 5.636% ((SOFR - 1mo. + 0.11448%) + 1.2%), 10/15/2036 (n) | 34,135 | 33,951 | ||
| BSPDF 2021-FL1 Issuer Ltd., “AS”, FLR, 5.916% ((SOFR - 1mo. + 0.11448%) + 1.48%), 10/15/2036 (n) | 774,500 | 768,082 | ||
| Business Jet Securities LLC, 2024-1A, “A”, 6.197%, 5/15/2039 (n) | 393,129 | 398,191 | ||
| BXMT 2021-FL4 Ltd., “AS”, FLR, 5.743% ((SOFR - 1mo. + 0.11448%) + 1.3%), 5/15/2038 (n) | 2,000,000 | 1,947,382 | ||
| Chase Auto Owner Trust, 2024-5A, “A2”, 4.4%, 11/26/2027 (n) | 286,963 | 286,576 | ||
| Commercial Mortgage Pass-Through Certificates, 2024-CBM, “A2”, 5.867%, 12/10/2041 (n) | 214,765 | 219,049 | ||
| Commercial Mortgage Trust, 2017-COR2, “A3”, 3.51%, 9/10/2050 | 1,676,352 | 1,630,939 | ||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Asset-Backed & Securitized – continued | ||||
| Dell Equipment Finance Trust, 2023-3, “A2”, 6.1%, 4/23/2029 (n) | $ | 29,670 | $29,702 | |
| Enterprise Fleet Financing 2025-1 LLC, “A2”, 4.65%, 10/20/2027 (n) | 188,000 | 188,333 | ||
| EQT Trust, 2024-EXTR, “B”, 5.654%, 7/05/2041 (n) | 236,027 | 238,981 | ||
| GLS Auto Select Receivables Trust, 2023-2A, 6.37%, 6/15/2028 (n) | 197,550 | 199,342 | ||
| GLS Auto Select Receivables Trust, 2024-2A, “A-2”, 5.77%, 6/15/2027 (n) | 385,820 | 386,614 | ||
| GreatAmerica Leasing Receivables Funding LLC, 2025-1, “A2”, 4.52%, 10/15/2027 (n) | 515,000 | 515,493 | ||
| Kubota Credit Owner Trust, 2025-1A, “A2”, 4.61%, 12/15/2027 (n) | 370,000 | 371,141 | ||
| LAD Auto Receivables Trust, 2025-1A, “A2”, 4.6%, 12/15/2027 (n) | 766,000 | 765,394 | ||
| LoanCore 2021-CRE6 Ltd., “AS”, FLR, 6.086% ((SOFR - 1mo. + 0.11448%) + 1.65%), 11/15/2038 (n) | 1,500,000 | 1,489,225 | ||
| M&T Bank Auto Receivables Trust, 2025-1, “A-2A”, 4.63%, 5/15/2028 (n) | 395,000 | 395,356 | ||
| Morgan Stanley Residential Mortgage Loan Trust, 2024-NQM3, “A-1”, 5.044%, 7/25/2069 (n) | 506,604 | 503,587 | ||
| Neuberger Berman CLO Ltd., 2023-53A, “BR”, FLR, 5.975% (SOFR - 3mo. + 1.7%), 10/24/2037 (n) | 758,092 | 757,582 | ||
| OBX Trust, 2024-NQM1, “A1”, 5.928%, 11/25/2063 (n) | 256,647 | 257,511 | ||
| OBX Trust, 2024-NQM1, “A2”, 6.253%, 11/25/2063 (n) | 77,691 | 78,055 | ||
| OBX Trust, 2024-NQM12, “A1”, 5.475%, 7/25/2064 (n) | 373,284 | 373,314 | ||
| OBX Trust, 2024-NQM2, “A1”, 5.878%, 12/25/2063 (n) | 1,175,557 | 1,179,354 | ||
| Palmer Square Loan Funding 2025-1A Ltd., “A1”, FLR, 5.12% (SOFR - 3mo. + 0.8%), 2/15/2033 (n) | 600,000 | 595,712 | ||
| Palmer Square Loan Funding 2025-1A Ltd., “A-2”, FLR, 5.52% (SOFR - 3mo. + 1.2%), 2/15/2033 (n) | 900,000 | 887,656 | ||
| PFP III 2024-11 Ltd., “11A”, FLR, 6.133% (SOFR - 1mo. + 1.83239%), 9/17/2039 (n) | 903,912 | 901,211 | ||
| PFS Financing Corp., 2024-A, “A”, FLR, 5.194% (SOFR - 1mo. + 0.85%), 1/15/2028 (n) | 1,700,000 | 1,702,399 | ||
| PFS Financing Corp., 2025-A, “A”, FLR, 4.994% (SOFR - 1mo. + 0.65%), 1/15/2029 (n) | 721,000 | 718,608 | ||
| Provident Funding Mortgage Trust, 2024-1, “A3”, 5.5%, 12/25/2054 (n) | 463,985 | 464,018 | ||
| ReadyCap Commercial Mortgage Trust, 2021-FL7, “A”, FLR, 5.641% ((SOFR - 1mo. + 0.11448%) + 1.2%), 11/25/2036 (n) | 245,391 | 245,061 | ||
| ReadyCap Commercial Mortgage Trust, 2021-FL7, “AS”, FLR, 5.941% ((SOFR - 1mo. + 0.11448%) + 1.5%), 11/25/2036 (n) | 199,500 | 199,375 | ||
| Santander Drive Auto Receivables Trust, 2024-1, “A2”, 5.71%, 2/16/2027 | 16,505 | 16,514 | ||
| SBNA Auto Lease Trust, 2024-A, “A2”, 5.45%, 1/20/2026 (n) | 13,579 | 13,585 | ||
| SBNA Auto Lease Trust, 2025-A, “A2”, 4.68%, 4/20/2027 (n) | 410,000 | 410,097 | ||
| Verus Securitization Trust, 2014-1, “A1”, 5.712%, 1/25/2069 (n) | 658,314 | 658,998 | ||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Asset-Backed & Securitized – continued | ||||
| Verus Securitization Trust, 2024-1, “A2”, 5.915%, 1/25/2069 (n) | $ | 183,964 | $184,146 | |
| Verus Securitization Trust, 2024-8, “A1”, 5.364%, 10/25/2069 (n) | 255,839 | 255,491 | ||
| Westlake Automobile Receivables Trust, 2024-1A, “A2B”, FLR, 4.917% (SOFR - 1mo. + 0.57%), 3/15/2027 (n) | 193,707 | 193,744 | ||
| $29,016,745 | ||||
| Automotive – 1.6% | ||||
| Ford Motor Credit Co. LLC, 5.8%, 3/05/2027 | $ | 958,000 | $952,434 | |
| Hyundai Capital America, 1.65%, 9/17/2026 (n) | 1,000,000 | 959,016 | ||
| LKQ Corp., 5.75%, 6/15/2028 | 862,000 | 880,184 | ||
| LKQ Corp., 6.25%, 6/15/2033 | 1,176,000 | 1,213,174 | ||
| Stellantis Finance US, Inc., 1.711%, 1/29/2027 (n) | 762,000 | 719,856 | ||
| Stellantis Finance US, Inc., 2.691%, 9/15/2031 (n) | 532,000 | 438,701 | ||
| $5,163,365 | ||||
| Broadcasting – 0.3% | ||||
| WarnerMedia Holdings, Inc., 4.279%, 3/15/2032 | $ | 1,274,000 | $1,090,901 | |
| Brokerage & Asset Managers – 2.7% | ||||
| Brookfield Finance, Inc., 2.724%, 4/15/2031 | $ | 2,844,000 | $2,524,940 | |
| Charles Schwab Corp., 5.875%, 8/24/2026 | 425,000 | 433,254 | ||
| Charles Schwab Corp., 5.643% to 5/19/2028, FLR (SOFR - 1 day + 2.210%) to 5/19/2029 | 1,535,000 | 1,591,881 | ||
| Low Income Investment Fund, 3.386%, 7/01/2026 | 705,000 | 691,694 | ||
| Low Income Investment Fund, 3.711%, 7/01/2029 | 1,905,000 | 1,811,411 | ||
| LPL Holdings, Inc., 6.75%, 11/17/2028 | 1,437,000 | 1,527,526 | ||
| $8,580,706 | ||||
| Building – 0.5% | ||||
| Allegion US Holding Co., Inc., 5.6%, 5/29/2034 | $ | 1,713,000 | $1,734,354 | |
| Business Services – 1.5% | ||||
| Paychex, Inc., 5.6%, 4/15/2035 | $ | 1,890,000 | $1,924,923 | |
| Tencent Holdings Ltd., 2.88%, 4/22/2031 (n) | 1,499,000 | 1,375,360 | ||
| Verisk Analytics, Inc., 4.125%, 3/15/2029 | 716,000 | 705,808 | ||
| Verisk Analytics, Inc., 5.75%, 4/01/2033 | 850,000 | 880,061 | ||
| $4,886,152 | ||||
| Cable TV – 0.7% | ||||
| Charter Communications Operating LLC/Charter Communications Operating Capital Corp., 4.908%, 7/23/2025 | $ | 312,000 | $311,587 | |
| Charter Communications Operating LLC/Charter Communications Operating Capital Corp., 6.15%, 11/10/2026 | 372,000 | 379,186 | ||
| Cox Communications, Inc., 5.45%, 9/15/2028 (n) | 1,559,000 | 1,606,937 | ||
| $2,297,710 | ||||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Conglomerates – 1.4% | ||||
| nVent Finance S.à r.l., 5.65%, 5/15/2033 | $ | 1,216,000 | $1,204,338 | |
| Regal Rexnord Corp., 6.05%, 4/15/2028 | 1,533,000 | 1,572,497 | ||
| Westinghouse Air Brake Technologies Corp., 4.7%, 9/15/2028 | 1,760,000 | 1,765,372 | ||
| $4,542,207 | ||||
| Consumer Products – 0.3% | ||||
| Haleon US Capital LLC, 3.375%, 3/24/2029 | $ | 860,000 | $827,298 | |
| Consumer Services – 2.0% | ||||
| Booking Holdings, Inc., 3.55%, 3/15/2028 | $ | 2,737,000 | $2,695,227 | |
| CBRE Services, Inc., 5.5%, 6/15/2035 | 1,500,000 | 1,494,378 | ||
| Conservation Fund, 3.474%, 12/15/2029 | 563,000 | 534,710 | ||
| Rentokil Terminix Funding LLC, 5.625%, 4/28/2035 (n) | 1,668,000 | 1,673,576 | ||
| $6,397,891 | ||||
| Containers – 0.6% | ||||
| Berry Global, Inc., 1.65%, 1/15/2027 | $ | 1,542,000 | $1,463,023 | |
| Berry Global, Inc., 5.5%, 4/15/2028 | 325,000 | 332,319 | ||
| $1,795,342 | ||||
| Electrical Equipment – 0.8% | ||||
| Arrow Electronics, Inc., 3.875%, 1/12/2028 | $ | 1,049,000 | $1,026,976 | |
| Molex Electronic Technologies LLC, 5.25%, 4/30/2032 (n) | 1,392,000 | 1,410,958 | ||
| $2,437,934 | ||||
| Electronics – 0.5% | ||||
| Broadcom, Inc., 4.55%, 2/15/2032 | $ | 1,671,000 | $1,637,701 | |
| Emerging Market Quasi-Sovereign – 0.4% | ||||
| Qatar Petroleum, 2.25%, 7/12/2031 (n) | $ | 1,635,000 | $1,428,630 | |
| Energy - Independent – 0.9% | ||||
| Occidental Petroleum Corp., 6.625%, 9/01/2030 | $ | 800,000 | $827,430 | |
| Occidental Petroleum Corp., 5.55%, 10/01/2034 | 375,000 | 350,012 | ||
| Pioneer Natural Resources Co., 1.9%, 8/15/2030 | 1,750,000 | 1,536,583 | ||
| $2,714,025 | ||||
| Energy - Integrated – 0.4% | ||||
| Eni S.p.A., 4.25%, 5/09/2029 (n) | $ | 1,252,000 | $1,238,929 | |
| Financial Institutions – 1.5% | ||||
| AerCap Ireland Capital DAC/AerCap Global Aviation Trust, 3.3%, 1/30/2032 | $ | 332,000 | $293,347 | |
| Avolon Holdings Funding Ltd., 3.25%, 2/15/2027 (n) | 583,000 | 564,413 | ||
| Avolon Holdings Funding Ltd., 2.528%, 11/18/2027 (n) | 869,000 | 815,888 | ||
| Avolon Holdings Funding Ltd., 2.75%, 2/21/2028 (n) | 2,336,000 | 2,189,571 | ||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Financial Institutions – continued | ||||
| SMBC Aviation Capital Finance DAC, 5.3%, 4/03/2029 (n) | $ | 789,000 | $798,896 | |
| $4,662,115 | ||||
| Food & Beverages – 3.0% | ||||
| Bacardi-Martini B.V., 5.25%, 1/15/2029 (n) | $ | 1,356,000 | $1,373,440 | |
| Constellation Brands, Inc., 4.4%, 11/15/2025 | 3,306,000 | 3,300,645 | ||
| JBS USA Lux S.A./JBS USA Food Co./JBS USA Finance, Inc., 3%, 2/02/2029 | 1,451,000 | 1,364,122 | ||
| JDE Peet's N.V., 1.375%, 1/15/2027 (n) | 1,931,000 | 1,815,969 | ||
| Mars, Inc., 5.2%, 3/01/2035 (n) | 1,666,000 | 1,672,537 | ||
| $9,526,713 | ||||
| Gaming & Lodging – 1.6% | ||||
| GLP Capital LP/GLP Financing II, Inc., 4%, 1/15/2031 | $ | 3,055,000 | $2,833,389 | |
| Marriott International, Inc., 2.85%, 4/15/2031 | 802,000 | 717,027 | ||
| Marriott International, Inc., 2.75%, 10/15/2033 | 1,750,000 | 1,446,627 | ||
| $4,997,043 | ||||
| Industrial – 0.4% | ||||
| Howard University, Washington D.C., AGM, 2.757%, 10/01/2027 | $ | 1,250,000 | $1,183,142 | |
| Insurance – 1.5% | ||||
| AIA Group Ltd., 3.375%, 4/07/2030 (n) | $ | 563,000 | $537,442 | |
| Corebridge Financial, Inc., 3.85%, 4/05/2029 | 2,500,000 | 2,422,952 | ||
| Sammons Financial Group, Inc., 4.75%, 4/08/2032 (n) | 2,000,000 | 1,876,394 | ||
| $4,836,788 | ||||
| Insurance - Health – 0.9% | ||||
| Elevance Health, Inc., 4.95%, 11/01/2031 | $ | 1,905,000 | $1,923,351 | |
| Humana, Inc., 3.7%, 3/23/2029 | 867,000 | 835,044 | ||
| $2,758,395 | ||||
| Insurance - Property & Casualty – 0.6% | ||||
| Arthur J. Gallagher & Co., 6.5%, 2/15/2034 | $ | 1,626,000 | $1,763,489 | |
| International Market Quasi-Sovereign – 0.4% | ||||
| NBN Co. Ltd. (Commonwealth of Australia), 5.75%, 10/06/2028 (n) | $ | 1,181,000 | $1,232,993 | |
| Machinery & Tools – 1.1% | ||||
| AGCO Corp., 5.8%, 3/21/2034 | $ | 529,000 | $525,471 | |
| CNH Industrial N.V., 3.85%, 11/15/2027 | 3,066,000 | 3,011,258 | ||
| $3,536,729 | ||||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Major Banks – 9.3% | ||||
| Bank of America Corp., 1.734% to 7/22/2026, FLR (SOFR - 1 day + 0.96%) to 7/22/2027 | $ | 2,224,000 | $2,150,156 | |
| Bank of America Corp., 2.572% to 10/20/2031, FLR (SOFR - 1 day + 1.21%) to 10/20/2032 | 1,823,000 | 1,584,241 | ||
| Barclays PLC, 2.279% to 11/24/2026, FLR (CMT - 1yr. + 1.05%) to 11/24/2027 | 1,435,000 | 1,382,501 | ||
| BNP Paribas S.A., 2.591% to 1/20/2027, FLR (SOFR - 1 day + 1.228%) to 1/20/2028 (n) | 1,723,000 | 1,664,371 | ||
| Capital One Financial Corp., 7.624% to 10/30/2030, FLR (SOFR - 1 day + 3.07%) to 10/30/2031 | 1,677,000 | 1,868,044 | ||
| Deutsche Bank AG, 2.311% to 11/16/2026, FLR (SOFR - 1 day + 1.219%) to 11/16/2027 | 457,000 | 440,038 | ||
| Deutsche Bank AG, 6.72% to 1/18/2028, FLR (SOFR - 1 day + 3.18%) to 1/18/2029 | 150,000 | 157,287 | ||
| Goldman Sachs Group, Inc., 1.093% to 12/09/2025, FLR (SOFR - 1 day + 0.789%) to 12/09/2026 | 894,000 | 875,001 | ||
| Huntington Bancshares, Inc., 6.208% to 8/21/2028, FLR (SOFR - 1 day + 2.02%) to 8/21/2029 | 1,142,000 | 1,187,486 | ||
| JPMorgan Chase & Co., 5.04% to 1/23/2027, FLR (SOFR - 1 day + 1.19%) to 1/23/2028 | 357,000 | 360,451 | ||
| JPMorgan Chase & Co., 2.58% to 4/22/2031, FLR (SOFR - 1 day + 1.25%) to 4/22/2032 | 2,250,000 | 1,993,919 | ||
| Mizuho Financial Group, 5.754%, 5/27/2034 | 2,000,000 | 2,056,414 | ||
| Morgan Stanley, 3.875%, 1/27/2026 | 5,400,000 | 5,377,332 | ||
| Morgan Stanley, 3.625%, 1/20/2027 | 824,000 | 816,368 | ||
| Morgan Stanley, 3.95%, 4/23/2027 | 290,000 | 287,682 | ||
| Morgan Stanley, 1.512% to 7/20/2026, FLR (SOFR - 1 day + 0.858%) to 7/20/2027 | 977,000 | 943,255 | ||
| Standard Chartered PLC, 6.17% to 1/09/2026, FLR (CMT - 1yr. + 2.05%) to 1/09/2027 (n) | 1,750,000 | 1,765,402 | ||
| UBS Group Funding (Switzerland) AG, 4.253%, 3/23/2028 (n) | 2,449,000 | 2,427,733 | ||
| UniCredit S.p.A., 2.569% to 9/22/2025, FLR (CMT - 1yr. + 2.3%) to 9/22/2026 (n) | 2,088,000 | 2,068,557 | ||
| $29,406,238 | ||||
| Medical & Health Technology & Services – 0.7% | ||||
| IQVIA, Inc., 5.7%, 5/15/2028 | $ | 472,000 | $480,288 | |
| IQVIA, Inc., 6.25%, 2/01/2029 | 353,000 | 366,796 | ||
| ProMedica Toledo Hospital, “B”, AGM, 5.75%, 11/15/2038 | 1,250,000 | 1,244,105 | ||
| $2,091,189 | ||||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Metals & Mining – 1.6% | ||||
| Anglo American Capital PLC, 4.75%, 4/10/2027 (n) | $ | 1,120,000 | $1,123,437 | |
| Anglo American Capital PLC, 2.875%, 3/17/2031 (n) | 870,000 | 773,173 | ||
| Glencore Funding LLC, 1.625%, 4/27/2026 (n) | 1,191,000 | 1,155,527 | ||
| Glencore Funding LLC, 3.875%, 10/27/2027 (n) | 1,887,000 | 1,853,832 | ||
| $4,905,969 | ||||
| Midstream – 1.8% | ||||
| Enbridge, Inc., 3.125%, 11/15/2029 | $ | 1,506,000 | $1,409,060 | |
| MPLX LP, 4%, 3/15/2028 | 1,395,000 | 1,375,192 | ||
| Plains All American Pipeline LP, 3.8%, 9/15/2030 | 1,510,000 | 1,423,213 | ||
| Targa Resources Corp., 4.2%, 2/01/2033 | 357,000 | 326,015 | ||
| Targa Resources Corp., 6.125%, 3/15/2033 | 577,000 | 593,776 | ||
| Targa Resources Partners LP/Targa Resources Finance Corp., 6.875%, 1/15/2029 | 499,000 | 509,393 | ||
| $5,636,649 | ||||
| Mortgage-Backed – 5.2% | ||||
| Fannie Mae, 6.5%, 11/01/2031 | $ | 192,602 | $198,713 | |
| Fannie Mae, 5.253%, 12/25/2053 | 924,559 | 923,855 | ||
| Fannie Mae, 5.503%, 2/25/2055 | 926,849 | 924,992 | ||
| Freddie Mac, 2.57%, 7/25/2026 | 3,370,897 | 3,309,851 | ||
| Freddie Mac, 0.63%, 5/25/2029 (i) | 6,832,566 | 118,488 | ||
| Freddie Mac, 1.005%, 7/25/2029 (i) | 4,920,901 | 159,447 | ||
| Freddie Mac, 0.571%, 1/25/2030 (i) | 1,501,935 | 37,697 | ||
| Freddie Mac, 0.546%, 2/25/2031 (i) | 6,786,456 | 150,098 | ||
| Freddie Mac, 0.431%, 5/25/2033 (i) | 6,200,000 | 133,178 | ||
| Freddie Mac, 0.176%, 10/25/2033 (i) | 11,614,030 | 201,591 | ||
| Freddie Mac, 6%, 8/01/2034 | 3,349 | 3,476 | ||
| Freddie Mac, 1.092%, 9/25/2034 (i) | 1,558,346 | 110,296 | ||
| Freddie Mac, 0.427%, 1/25/2035 (i) | 7,378,905 | 179,346 | ||
| Freddie Mac, 5.173%, 9/25/2052 | 788,041 | 773,411 | ||
| Freddie Mac, 5.253%, 10/25/2054 | 1,213,105 | 1,211,029 | ||
| Freddie Mac, 5.303%, 2/25/2055 | 1,469,108 | 1,468,618 | ||
| Ginnie Mae, 6%, 6/15/2033 - 10/15/2036 | 161,134 | 169,203 | ||
| Ginnie Mae, 4.991%, 4/20/2068 | 1,442,434 | 1,453,544 | ||
| Ginnie Mae, 5.862%, 5/20/2068 | 779,108 | 783,183 | ||
| Ginnie Mae, 4.939%, 11/20/2068 - 8/20/2069 | 710,063 | 710,754 | ||
| Ginnie Mae, 4.75%, 12/20/2071 | 493,342 | 490,392 | ||
| Ginnie Mae, 5%, 8/20/2074 - 1/20/2075 | 2,118,524 | 2,116,071 | ||
| Ginnie Mae, 4.35%, 11/20/2074 | 695,767 | 690,130 | ||
| $16,317,363 | ||||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Municipals – 4.4% | ||||
| Bridgeview, IL, Stadium & Redevelopment Projects, Taxable, AAC, 5.06%, 12/01/2025 | $ | 945,000 | $942,981 | |
| Gainesville, TX, Hospital District, Taxable, “A”, 5.711%, 8/15/2033 | 2,330,000 | 2,356,512 | ||
| Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Taxable, “B”, 3%, 6/01/2046 | 540,000 | 470,192 | ||
| Guam International Airport Authority Rev., Taxable (A.B. Won Pat Airport), “A”, 3.839%, 10/01/2036 | 110,000 | 96,940 | ||
| Massachusetts Educational Financing Authority, Education Loan Rev., Taxable, “A”, 2.641%, 7/01/2037 | 1,600,000 | 1,485,267 | ||
| Massachusetts Educational Financing Authority, Education Loan Rev., Taxable, “N”, 6.069%, 7/01/2033 | 1,750,000 | 1,834,398 | ||
| Michigan Finance Authority Hospital Refunding Rev., Taxable (Trinity Health Credit Group), “T”, 3.084%, 12/01/2034 | 2,500,000 | 2,231,356 | ||
| Michigan Finance Authority Tobacco Settlement Asset-Backed Rev., Taxable (2006 Sold Tobacco Receipts), “A-1”, 2.326%, 6/01/2030 | 14,541 | 14,402 | ||
| Rhode Island Student Loan Authority, Education Loan Rev., Taxable, “2”, 2.348%, 12/01/2040 | 45,000 | 43,145 | ||
| Syracuse, NY, Industrial Development Agency PILOT Rev., Taxable (Carousel Center Project), “B”, 5%, 1/01/2036 (n) | 3,635,000 | 2,693,323 | ||
| University of California, General Rev., Taxable, “BG”, 1.614%, 5/15/2030 | 2,010,000 | 1,775,722 | ||
| $13,944,238 | ||||
| Other Banks & Diversified Financials – 1.6% | ||||
| AIB Group PLC, 6.608% to 9/13/2028, FLR (SOFR - 1 day + 2.33%) to 9/13/2029 (n) | $ | 352,000 | $372,196 | |
| CaixaBank S.A., 5.673% to 3/15/2029, FLR (SOFR - 1 day + 1.78%) to 3/15/2030 (n) | 637,000 | 656,877 | ||
| First Citizens Bancshare, Inc., 5.231% to 3/12/2030, FLR (SOFR - 1 day + 1.41%) to 3/12/2031 | 633,000 | 631,308 | ||
| Macquarie Group Ltd., 1.34% to 1/12/2026, FLR (SOFR - 1 day + 1.069%) to 1/12/2027 (n) | 1,784,000 | 1,743,258 | ||
| Macquarie Group Ltd., 6.255% to 12/07/2033, FLR (SOFR - 1 day + 2.303%) to 12/07/2034 (n) | 819,000 | 859,876 | ||
| Truist Financial Corp., 5.435% to 1/24/2029, FLR (SOFR - 1 day + 1.62%) to 1/24/2030 | 789,000 | 806,147 | ||
| $5,069,662 | ||||
| Pharmaceuticals – 0.7% | ||||
| Bayer US Finance LLC, 6.375%, 11/21/2030 (n) | $ | 2,000,000 | $2,107,398 | |
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| Real Estate - Retail – 2.7% | ||||
| Brixmor Operating Partnership LP, REIT, 4.05%, 7/01/2030 | $ | 2,349,000 | $2,255,189 | |
| NNN REIT, Inc., 5.6%, 10/15/2033 | 675,000 | 683,476 | ||
| Realty Income Corp., REIT, 3.4%, 1/15/2028 | 2,875,000 | 2,804,634 | ||
| Regency Centers Corp., 3.7%, 6/15/2030 | 3,000,000 | 2,886,385 | ||
| $8,629,684 | ||||
| Specialty Stores – 1.5% | ||||
| DICK'S Sporting Goods, 3.15%, 1/15/2032 | $ | 2,631,000 | $2,304,087 | |
| Ross Stores, Inc., 4.8%, 4/15/2030 | 2,358,000 | 2,357,811 | ||
| $4,661,898 | ||||
| Telecommunications - Wireless – 1.9% | ||||
| Crown Castle, Inc., REIT, 3.65%, 9/01/2027 | $ | 947,000 | $926,125 | |
| Crown Castle, Inc., REIT, 2.25%, 1/15/2031 | 1,000,000 | 863,287 | ||
| Rogers Communications, Inc., 3.2%, 3/15/2027 | 1,739,000 | 1,700,481 | ||
| T-Mobile USA, Inc., 3.875%, 4/15/2030 | 2,500,000 | 2,412,268 | ||
| $5,902,161 | ||||
| Tobacco – 1.2% | ||||
| B.A.T. Capital Corp., 5.35%, 8/15/2032 | $ | 2,000,000 | $2,011,228 | |
| Philip Morris International, Inc., 5.75%, 11/17/2032 | 1,773,000 | 1,860,028 | ||
| $3,871,256 | ||||
| Transportation - Services – 2.3% | ||||
| Element Fleet Management Corp., 5.643%, 3/13/2027 (n) | $ | 653,000 | $664,128 | |
| Element Fleet Management Corp., 5.037%, 3/25/2030 (n) | 1,260,000 | 1,253,816 | ||
| GXO Logistics, Inc., 6.25%, 5/06/2029 | 625,000 | 635,674 | ||
| Penske Truck Leasing Co. LP, 5.35%, 1/12/2027 (n) | 648,000 | 655,343 | ||
| Penske Truck Leasing Co. LP, 5.35%, 3/30/2029 (n) | 911,000 | 927,340 | ||
| Toll Road Investors Partnership II LP, Capital Appreciation, NPFG, 0%, 2/15/2026 (n) | 480,000 | 456,912 | ||
| Toll Road Investors Partnership II LP, Capital Appreciation, NPFG, 0%, 2/15/2027 (n) | 1,525,000 | 1,367,359 | ||
| Toll Road Investors Partnership II LP, Capital Appreciation, NPFG, 0%, 2/15/2029 (n) | 1,392,000 | 1,045,022 | ||
| Toll Road Investors Partnership II LP, Capital Appreciation, NPFG, 0%, 2/15/2031 (n) | 480,000 | 322,525 | ||
| $7,328,119 | ||||
| U.S. Government Agencies and Equivalents – 0.0% | ||||
| Small Business Administration, 5.36%, 11/01/2025 | $ | 12,057 | $12,033 | |
| Small Business Administration, 5.39%, 12/01/2025 | 8,512 | 8,506 | ||
| $20,539 | ||||
| Issuer | Shares/Par | Value ($) | ||
| Bonds – continued | ||||
| U.S. Treasury Obligations – 24.4% | ||||
| U.S. Treasury Notes, 2%, 8/15/2025 | $ | 5,225,000 | $5,189,384 | |
| U.S. Treasury Notes, 2.25%, 11/15/2025 | 5,086,000 | 5,034,425 | ||
| U.S. Treasury Notes, 2%, 11/15/2026 | 6,254,000 | 6,094,474 | ||
| U.S. Treasury Notes, 1.625%, 11/30/2026 | 7,750,000 | 7,505,996 | ||
| U.S. Treasury Notes, 1.875%, 2/28/2027 | 10,066,500 | 9,754,674 | ||
| U.S. Treasury Notes, 2.375%, 5/15/2027 | 4,075,000 | 3,976,786 | ||
| U.S. Treasury Notes, 0.5%, 6/30/2027 | 6,500,000 | 6,083,594 | ||
| U.S. Treasury Notes, 3.75%, 8/15/2027 (f) | 11,885,000 | 11,924,926 | ||
| U.S. Treasury Notes, 0.375%, 9/30/2027 | 5,672,000 | 5,253,247 | ||
| U.S. Treasury Notes, 1.75%, 11/15/2029 | 4,500,000 | 4,143,516 | ||
| U.S. Treasury Notes, 1.5%, 2/15/2030 | 5,043,500 | 4,558,063 | ||
| U.S. Treasury Notes, 4.625%, 4/30/2031 | 1,626,000 | 1,693,136 | ||
| U.S. Treasury Notes, 1.875%, 2/15/2032 | 2,705,500 | 2,375,450 | ||
| U.S. Treasury Notes, 4.125%, 11/15/2032 | 3,400,000 | 3,433,469 | ||
| $77,021,140 | ||||
| Utilities - Electric Power – 3.8% | ||||
| Algonquin Power & Utilities Corp., 5.365%, 6/15/2026 | $ | 364,000 | $366,364 | |
| Enel Americas S.A., 4%, 10/25/2026 | 252,000 | 249,726 | ||
| Enel Finance International N.V., 7.05%, 10/14/2025 (n) | 895,000 | 901,629 | ||
| FirstEnergy Corp., 3.9%, 7/15/2027 | 2,827,000 | 2,794,328 | ||
| ITC Holdings Corp., 2.95%, 5/14/2030 (n) | 3,000,000 | 2,762,159 | ||
| Liberty Utilities Finance Co., 2.05%, 9/15/2030 (n) | 3,000,000 | 2,587,675 | ||
| Pacific Gas & Electric Co., 5.45%, 6/15/2027 | 401,000 | 406,145 | ||
| Pacific Gas & Electric Co., 2.1%, 8/01/2027 | 952,000 | 896,538 | ||
| Pacific Gas & Electric Co., 6.1%, 1/15/2029 | 326,000 | 336,900 | ||
| Southern California Edison Co., 6.65%, 4/01/2029 | 816,000 | 847,394 | ||
| $12,148,858 | ||||
| Total Bonds (Identified Cost, $319,380,617) | $310,835,658 | |||
| Mutual Funds (h) – 1.3% | ||||
| Money Market Funds – 1.3% | ||||
| MFS Institutional Money Market Portfolio, 4.36% (v) (Identified Cost, $4,219,390) | 4,219,107 | $4,219,107 | ||
| Other Assets, Less Liabilities – 0.3% | 927,966 | |||
| Net Assets – 100.0% | $315,982,731 | |||
| (f) | All or a portion of the security has been segregated as collateral for open futures contracts. | |||
| (h) | An affiliated issuer, which may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. At period end, the aggregate values of the fund's investments in affiliated issuers and in unaffiliated issuers were $4,219,107 and $310,835,658, respectively. |
| (i) | Interest only security for which the fund receives interest on notional principal (Par amount). Par amount shown is the notional principal and does not reflect the cost of the security. | |||
| (n) | Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $84,245,255, representing 26.7% of net assets. | |||
| (v) | Affiliated issuer that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end. |
| The following abbreviations are used in this report and are defined: | |
| AAC | Ambac Assurance Corp. |
| AGM | Assured Guaranty Municipal |
| CLO | Collateralized Loan Obligation |
| CMT | Constant Maturity Treasury |
| FLR | Floating Rate. Interest rate resets periodically based on the parenthetically disclosed reference rate plus a spread (if any). The period-end rate reported may not be the current rate. All reference rates are USD unless otherwise noted. |
| NPFG | National Public Finance Guarantee Corp. |
| REIT | Real Estate Investment Trust |
| SOFR | Secured Overnight Financing Rate |
| Futures Contracts | ||||||
| Description | Long/ Short |
Currency | Contracts | Notional Amount |
Expiration Date |
Value/Unrealized Appreciation (Depreciation) |
| Asset Derivatives | ||||||
| Interest Rate Futures | ||||||
| U.S. Treasury Note 10 yr | Long | USD | 71 | $7,967,531 | June – 2025 | $121,495 |
| U.S. Treasury Note 2 yr | Long | USD | 233 | 48,498,586 | June – 2025 | 277,033 |
| U.S. Treasury Note 5 yr | Long | USD | 322 | 35,160,891 | June – 2025 | 783,742 |
| $1,182,270 | ||||||
| Assets | |
| Investments in unaffiliated issuers, at value (identified cost, $319,380,617) | $310,835,658 |
| Investments in affiliated issuers, at value (identified cost, $4,219,390) | 4,219,107 |
| Receivables for | |
| Net daily variation margin on open futures contracts | 64,877 |
| Interest | 2,495,696 |
| Other assets | 75,187 |
| Total assets | $317,690,525 |
| Liabilities | |
| Payables for | |
| Distributions | $78,602 |
| Investments purchased | 1,493,235 |
| Payable to affiliates | |
| Investment adviser | 9,662 |
| Administrative services fee | 280 |
| Transfer agent and dividend disbursing costs | 4,082 |
| Payable for independent Trustees' compensation | 1,317 |
| Accrued expenses and other liabilities | 120,616 |
| Total liabilities | $1,707,794 |
| Net assets | $315,982,731 |
| Net assets consist of | |
| Paid-in capital | $344,954,397 |
| Total distributable earnings (loss) | (28,971,666) |
| Net assets | $315,982,731 |
| Shares of beneficial interest outstanding (unlimited number of shares authorized) | 113,798,238 |
| Net asset value per share (net assets of $315,982,731 / 113,798,238 shares of beneficial interest outstanding) | $2.78 |
| Net investment income (loss) | |
| Income | |
| Interest | $5,956,907 |
| Dividends from affiliated issuers | 181,523 |
| Other | 112 |
| Total investment income | $6,138,542 |
| Expenses | |
| Management fee | $857,420 |
| Transfer agent and dividend disbursing costs | 39,052 |
| Administrative services fee | 26,717 |
| Independent Trustees' compensation | 5,986 |
| Stock exchange fee | 54,816 |
| Custodian fee | 11,244 |
| Shareholder communications | 66,832 |
| Audit and tax fees | 49,825 |
| Legal fees | 2,460 |
| Miscellaneous | 21,821 |
| Total expenses | $1,136,173 |
| Net investment income (loss) | $5,002,369 |
| Realized and unrealized gain (loss) | |
| Realized gain (loss) (identified cost basis) | |
| Unaffiliated issuers | $(132,164) |
| Affiliated issuers | 89 |
| Futures contracts | (1,185,274) |
| Net realized gain (loss) | $(1,317,349) |
| Change in unrealized appreciation or depreciation | |
| Unaffiliated issuers | $3,857,938 |
| Affiliated issuers | (1,163) |
| Futures contracts | 2,312,344 |
| Net unrealized gain (loss) | $6,169,119 |
| Net realized and unrealized gain (loss) | $4,851,770 |
| Change in net assets from operations | $9,854,139 |
| Six months ended | Year ended | |
| 4/30/25 (unaudited) |
10/31/24 | |
| Change in net assets | ||
| From operations | ||
| Net investment income (loss) | $5,002,369 | $10,239,668 |
| Net realized gain (loss) | (1,317,349) | (831,156) |
| Net unrealized gain (loss) | 6,169,119 | 17,903,653 |
| Change in net assets from operations | $9,854,139 | $27,312,165 |
| Distributions to shareholders | $(5,157,613) | $(10,586,303) |
| Tax return of capital distributions to shareholders | $— | $(17,058,539) |
| Distributions from other sources | $(8,332,033)(a) | $— |
| Change in net assets from fund share transactions | $— | $(554,096) |
| Total change in net assets | $(3,635,507) | $(886,773) |
| Net assets | ||
| At beginning of period | 319,618,238 | 320,505,011 |
| At end of period | $315,982,731 | $319,618,238 |
| (a) | Estimated tax return of capital. All or a portion of this amount may be redesignated as ordinary income and/or capital gains at fiscal year end when the tax character of distributions is determined. Please refer to “Tax Matters and Distributions” under Note 2 of the Notes to Financial Statements for additional information regarding the tax character of the fund’s distributions. |
| Six
months ended |
Year ended | |||||
| 4/30/25 (unaudited) |
10/31/24 | 10/31/23 | 10/31/22 | 10/31/21 | 10/31/20 | |
| Net asset value, beginning of period | $2.81 | $2.81 | $2.98 | $3.64 | $3.95 | $4.04 |
| Income (loss) from investment operations | ||||||
| Net investment income (loss) (d) | $0.04 | $0.09 | $0.08 | $0.07 | $0.08 | $0.09 |
| Net realized and unrealized gain (loss) | 0.05 | 0.15 | 0.00(w) | (0.44) | (0.06) | 0.16 |
| Total from investment operations | $0.09 | $0.24 | $0.08 | $(0.37) | $0.02 | $0.25 |
| Less distributions declared to shareholders | ||||||
| From net investment income | $(0.05) | $(0.09) | $(0.08) | $(0.08) | $(0.10) | $(0.11) |
| From net realized gain | — | — | — | — | (0.03) | (0.04) |
| From tax return of capital | — | (0.15) | (0.17) | (0.21) | (0.20) | (0.19) |
| From other sources | (0.07)(b) | — | — | — | — | — |
| Total distributions declared to shareholders | $(0.12) | $(0.24) | $(0.25) | $(0.29) | $(0.33) | $(0.34) |
| Net increase from repurchase of capital shares | $— | $0.00(w) | $0.00(w) | $0.00(w) | $— | $0.00(w) |
| Net asset value, end of period (x) | $2.78 | $2.81 | $2.81 | $2.98 | $3.64 | $3.95 |
| Market value, end of period | $2.69 | $2.73 | $2.58 | $2.75 | $3.63 | $3.73 |
| Total return at market value (%) | 2.94(n) | 15.71 | 2.73 | (16.98) | 6.18 | 8.24 |
| Total return at net asset value (%) (j)(s)(x) | 3.35(n) | 9.35 | 3.26 | (10.29) | 0.54 | 6.96 |
| Ratios (%) (to average net assets) and Supplemental data: | ||||||
| Expenses | 0.73(a) | 0.72 | 0.69 | 0.65 | 0.62 | 0.64 |
| Net investment income (loss) | 3.19(a) | 3.15 | 2.72 | 2.16 | 2.08 | 2.33 |
| Portfolio turnover rate | 12(n) | 20 | 15 | 16 | 20 | 43 |
| Net assets at end of period (000 omitted) | $315,983 | $319,618 | $320,505 | $342,280 | $422,382 | $457,844 |
| (a) | Annualized. |
| (b) | Estimated tax return of capital. All or a portion of this amount may be redesignated as ordinary income and/or capital gains at fiscal year end when the tax character of distributions is determined. Please refer to “Tax Matters and Distributions” under Note 2 of the Notes to Financial Statements for additional information regarding the tax character of the fund’s distributions. |
| (d) | Per share data is based on average shares outstanding. |
| (j) | Total return at net asset value is calculated using the net asset value of the fund, not the publicly traded price and therefore may be different than the total return at market value. |
| (n) | Not annualized. |
| (s) | From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. |
| (w) | Per share amount was less than $0.01. |
| (x) | The net asset values and total returns at net asset value have been calculated on net assets which include adjustments made in accordance with U.S. generally accepted accounting principles required at period end for financial reporting purposes. |
| Financial Instruments | Level 1 | Level 2 | Level 3 | Total |
| U.S. Treasury Bonds & U.S. Government Agencies & Equivalents | $— | $77,041,679 | $— | $77,041,679 |
| Non - U.S. Sovereign Debt | — | 2,661,623 | — | 2,661,623 |
| Municipal Bonds | — | 13,944,238 | — | 13,944,238 |
| U.S. Corporate Bonds | — | 125,957,168 | — | 125,957,168 |
| Residential Mortgage-Backed Securities | — | 21,727,199 | — | 21,727,199 |
| Commercial Mortgage-Backed Securities | — | 7,611,258 | — | 7,611,258 |
| Asset-Backed Securities (including CDOs) | — | 15,995,651 | — | 15,995,651 |
| Foreign Bonds | — | 45,896,842 | — | 45,896,842 |
| Investment Companies | 4,219,107 | — | — | 4,219,107 |
| Total | $4,219,107 | $310,835,658 | $— | $315,054,765 |
| Other Financial Instruments | ||||
| Futures Contracts – Assets | $1,182,270 | $— | $— | $1,182,270 |
| Fair Value (a) | ||
| Risk | Derivative Contracts | Asset Derivatives |
| Interest Rate | Futures Contracts | $1,182,270 |
| (a) | Values presented in this table for futures contracts correspond to the values reported in the Portfolio of Investments. Only the current day net variation margin for futures contracts is reported separately within the Statement of Assets and Liabilities. |
| Risk | Futures Contracts |
| Interest Rate | $(1,185,274) |
| Risk | Futures Contracts |
| Interest Rate | $2,312,344 |
| Year
ended 10/31/24 | |
| Ordinary income (including any short-term capital gains) | $10,586,303 |
| Tax return of capital (b) | 17,058,539 |
| Total distributions | $27,644,842 |
| (b) | Distributions in excess of tax basis earnings and profits are reported in the financial statements as a tax return of capital. |
| As of 4/30/25 | |
| Cost of investments | $324,863,667 |
| Gross appreciation | 2,106,688 |
| Gross depreciation | (11,915,590) |
| Net unrealized appreciation (depreciation) | $(9,808,902) |
| As of 10/31/24 | |
| Capital loss carryforwards | (11,716,265) |
| Other temporary differences | (88,207) |
| Net unrealized appreciation (depreciation) | (13,531,687) |
| Short-Term | $(1,654,137) |
| Long-Term | (10,062,128) |
| Total | $(11,716,265) |
| Purchases | Sales | |
| U.S. Government securities | $16,450,118 | $14,620,722 |
| Non-U.S. Government securities | 19,182,746 | 23,390,126 |
| Six months ended 4/30/25 |
Year ended 10/31/24 | ||||
| Shares | Amount | Shares | Amount | ||
| Capital shares repurchased | — | $— | (213,332) | $(554,096) | |
| Affiliated Issuers | Beginning Value |
Purchases | Sales Proceeds |
Realized Gain (Loss) |
Change
in Unrealized Appreciation or Depreciation |
Ending Value |
| MFS Institutional Money Market Portfolio | $8,831,354 | $39,708,717 | $44,319,890 | $89 | $(1,163) | $4,219,107 |
| Affiliated Issuers | Dividend Income |
Capital
Gain Distributions |
| MFS Institutional Money Market Portfolio | $181,523 | $— |