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Inflation-Adjusted Bond Fund


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Based on Market Value Based on Equivalent Exposure
CUSIP/SEDOL Ticker Securities
(on 10-31-25)
Shares or Par Amount Value Percent of Net Assets Value Percent of Net Assets Market Cap ($mm) GICS Sectors

The Global Industry Classification Standard (GICS®) was developed by and/or is the exclusive property of MSCI, Inc. and S&P Global Market Intelligence Inc. ("S&P Global Market Intelligence"). GICS is a service mark of MSCI and S&P Global Market Intelligence and has been licensed for use by MFS. MFS has applied its own internal sector/industry classification methodology for equity securities and non-equity securities that are unclassified by GICS.

Country
91282CBF 91282CBF US Treasury Inflation Indexed Bonds 0.125% JAN 15 31 202,189,593 $189,638,763.90 12.14% $189,638,763.91 12.14% - U.S. Governments United States
912828ZZ 912828ZZ US Treasury Inflation Indexed Bonds 0.125% JUL 15 30 181,076,407 $171,881,346.26 11.00% $171,881,346.25 11.00% - U.S. Governments United States
TUZ25F00 TUZ25F00 UST Bond 2Yr Future DEC 31 25 583 $0.00 0.00% $121,405,195.60 7.77% - U.S. Governments United States
91282CJY 91282CJY US Treasury Inflation Indexed Bonds 1.75% JAN 15 34 115,781,677 $116,815,261.89 7.48% $116,815,261.89 7.48% - U.S. Governments United States
9128285W 9128285W US Treasury Inflation Indexed Bonds 0.875% JAN 15 29 115,190,561 $114,219,245.30 7.31% $114,219,245.30 7.31% - U.S. Governments United States
91282CDX 91282CDX US Treasury Inflation Indexed Bonds 0.125% JAN 15 32 104,813,576 $96,410,165.13 6.17% $96,410,165.13 6.17% - U.S. Governments United States
912810QV 912810QV US Treasury Inflation Indexed Bonds 0.75% FEB 15 42 118,744,831 $94,967,732.56 6.08% $94,967,732.56 6.08% - U.S. Governments United States
9128282L 9128282L US Treasury Inflation Indexed Bonds 0.375% JUL 15 27 90,108,883 $89,341,059.40 5.72% $89,341,059.40 5.72% - U.S. Governments United States
SM11925R SM11925R USD ZC CPI OCT 14 25 P 3.170 OCT 14 26 84,400,000 $84,618,547.89 0.00% $84,618,547.89 5.42% - U.S. Governments United States
SM11926R SM11926R USD ZC CPI OCT 14 25 R .000 OCT 14 28 84,400,000 $84,066,874.89 0.00% $84,066,874.89 5.38% - U.S. Governments United States
SM11576R SM11576R USD ZC CPI MAR 19 24 R 2.482 MAR 19 26 OTC 79,900,000 $80,638,341.52 5.16% $80,638,341.52 5.16% - U.S. Governments United States
SM11746R SM11746R USD ZC CPI FEB 05 25 R 2.755 FEB 05 27 80,400,000 $80,537,680.18 0.00% $80,537,680.18 5.16% - U.S. Governments United States
91282CGK 91282CGK US Treasury Inflation Indexed Bonds 1.125% JAN 15 33 77,060,596 $74,843,760.83 4.79% $74,843,760.83 4.79% - U.S. Governments United States
912810FD 912810FD US Treasury Inflation Indexed Bonds 3.625% APR 15 28 68,022,254 $72,029,490.43 4.61% $72,029,490.44 4.61% - U.S. Governments United States
91282CHP 91282CHP US Treasury Inflation Indexed Bonds 1.375% JUL 15 33 69,979,211 $69,136,063.44 4.43% $69,136,063.44 4.43% - U.S. Governments United States
91282CPH 91282CPH US Treasury Inflation Indexed Bonds 1.125% OCT 15 30 62,097,340 $61,610,061.84 3.94% $61,610,061.86 3.94% - U.S. Governments United States
91282CNB 91282CNB US Treasury Inflation Indexed Bonds 1.625% APR 15 30 57,675,631 $58,421,933.52 3.74% $58,421,933.52 3.74% - U.S. Governments United States
9128283R 9128283R US Treasury Inflation Indexed Bonds 0.5% JAN 15 28 57,883,733 $57,100,482.61 3.66% $57,100,482.60 3.66% - U.S. Governments United States
912810RL 912810RL US Treasury Inflation Indexed Bonds 0.75% FEB 15 45 54,641,273 $41,268,524.19 2.64% $41,268,524.18 2.64% - U.S. Governments United States
SM11591R SM11591R USD ZC CPI APR 15 24 R 2.6365 APR 15 26 40,400,000 $40,599,809.11 0.00% $40,599,809.11 2.60% - U.S. Governments United States
912810TY 912810TY US Treasury Inflation Indexed Bonds 2.125% FEB 15 54 37,448,474 $35,147,969.77 2.25% $35,147,969.77 2.25% - U.S. Governments United States
91282CLE 91282CLE US Treasury Inflation Indexed Bonds 1.875% JUL 15 34 29,941,920 $30,527,958.79 1.95% $30,527,958.78 1.95% - U.S. Governments United States
912810RA 912810RA US Treasury Inflation Indexed Bonds 0.625% FEB 15 43 37,225,251 $28,556,793.15 1.83% $28,556,793.15 1.83% - U.S. Governments United States
912810TE 912810TE US Treasury Inflation Indexed Bonds 0.125% FEB 15 52 42,193,932 $23,287,777.89 1.49% $23,287,777.89 1.49% - U.S. Governments United States
FVZ25F00 FVZ25F00 UST Bond 5Yr Future DEC 31 25 196 $0.00 0.00% $21,405,343.85 1.37% - U.S. Governments United States
912810SB 912810SB US Treasury Inflation Indexed Bonds 1% FEB 15 48 25,415,268 $19,309,715.52 1.24% $19,309,715.52 1.24% - U.S. Governments United States
912828Z3 912828Z3 US Treasury Inflation Indexed Bonds 0.125% JAN 15 30 12,267,321 $11,691,148.86 0.75% $11,691,176.99 0.75% - U.S. Governments United States
91282CEZ 91282CEZ US Treasury Inflation Indexed Bonds 0.625% JUL 15 32 11,708,025 $11,088,132.41 0.71% $11,088,132.41 0.71% - U.S. Governments United States
69704AAC 69704AAC Palmer Square Loan Funding 2025-2 Ltd 144A 5.688% JUL 15 33 5,700,000 $5,774,761.79 0.37% $5,774,761.79 0.37% - Collateralized Loan Obligations United States
912828Y3 912828Y3 US Treasury Inflation Indexed Bonds 0.75% JUL 15 28 5,162,640 $5,130,785.47 0.33% $5,130,785.47 0.33% - U.S. Governments United States
81880XAY 81880XAY Shackleton 2019-XIV Clo Ltd 144A 5.434% JUL 20 34 3,996,016 $4,002,968.82 0.26% $4,002,968.82 0.26% - Collateralized Loan Obligations United States
06762TAN 06762TAN Barings Clo Ltd 2021-III 144A 5.514% JAN 18 35 3,000,000 $3,002,754.35 0.19% $3,002,754.35 0.19% - Collateralized Loan Obligations United States
889184AF 889184AF Toledo Hospital 5.325% NOV 15 28 2,421,000 $2,534,114.37 0.16% $2,534,114.37 0.16% - Corporate Debt United States
39154GAH 39154GAH GreatAmerica Leasing Receivables Funding LLC 144A 4.52% OCT 15 27 2,485,000 $2,496,937.42 0.16% $2,496,937.42 0.16% - Asset Backed Securities United States
04002VAC 04002VAC AREIT 2022-CRE6 Trust 144A 6.718% JAN 20 37 2,462,500 $2,460,105.05 0.16% $2,460,105.05 0.16% - Commercial Mortgage-Backed Securities United States
04033CAB 04033CAB ARI Fleet Lease Trust 2025-A 144A 4.38% JAN 17 34 1,437,000 $1,442,445.75 0.09% $1,442,445.75 0.09% - Asset Backed Securities United States
80288DAB 80288DAB Santander Drive Auto Receivables Trust 2025-1 4.76% AUG 16 27 1,420,511 $1,424,033.75 0.09% $1,424,033.75 0.09% - Asset Backed Securities United States
3137FXYZ 3137FXYZ Freddie Mac Multifamily Structured Pass Through Certificates FRB JAN 25 31 54,980,294 $1,420,282.48 0.09% $1,420,282.47 0.09% - Mortgage-Backed Securities United States
38376RS5 38376RS5 Ginnie Mae 5.249% JAN 20 67 1,390,732 $1,403,228.61 0.09% $1,403,228.61 0.09% - Mortgage-Backed Securities United States
20848FAA 20848FAA Conservation Fund A Nonprofit Corp 3.474% DEC 15 29 1,438,000 $1,396,376.67 0.09% $1,396,376.67 0.09% - Corporate Debt United States
61778LAA 61778LAA Morgan Stanley Residential Mortgage Loan Trust 2025-NQM3 144A 5.53% MAY 25 70 1,371,650 $1,387,167.66 0.09% $1,387,167.65 0.09% - Residential Mortgage Backed Securities United States
3137H5DT 3137H5DT Freddie Mac Multifamily Structured Pass Through Certificates FRB DEC 25 31 50,485,813 $1,331,729.88 0.09% $1,331,729.88 0.09% - Mortgage-Backed Securities United States
08163GAZ 08163GAZ Benchmark 2021-B28 Mortgage Trust FRB AUG 15 54 24,690,148 $1,262,830.87 0.08% $1,262,830.88 0.08% - Commercial Mortgage-Backed Securities United States
80288DAC 80288DAC Santander Drive Auto Receivables Trust 2025-1 4.74% JAN 16 29 1,200,000 $1,206,409.40 0.08% $1,206,409.40 0.08% - Asset Backed Securities United States
08162RAF 08162RAF Benchmark 2021-B23 Mortgage Trust FRB FEB 15 54 25,093,024 $1,200,204.69 0.08% $1,200,204.69 0.08% - Commercial Mortgage-Backed Securities United States
10806HAB 10806HAB Bridgecrest Lending Auto Securitization Trust 2025-1 4.71% SEP 15 27 1,126,296 $1,128,777.61 0.07% $1,128,777.61 0.07% - Asset Backed Securities United States
61772TBN 61772TBN Morgan Stanley Capital I Trust 2021-L7 FRB OCT 15 54 27,131,047 $1,118,259.74 0.07% $1,118,259.74 0.07% - Commercial Mortgage-Backed Securities United States
67449AAA 67449AAA OBX 2025-NQM8 Trust 144A 5.472% MAR 25 65 1,034,139 $1,046,112.54 0.07% $1,046,112.53 0.07% - Residential Mortgage Backed Securities United States
08163HAG 08163HAG Benchmark 2021-B27 Mortgage Trust FRB JUL 15 54 20,359,109 $1,026,587.12 0.07% $1,026,587.11 0.07% - Commercial Mortgage-Backed Securities United States
06541ABM 06541ABM BANK 2021-BNK31 FRB FEB 15 54 18,881,025 $1,008,150.26 0.06% $1,008,150.26 0.06% - Commercial Mortgage-Backed Securities United States
3137H4CH 3137H4CH Freddie Mac Multifamily Structured Pass Through Certificates FRB NOV 25 31 49,721,062 $952,600.07 0.06% $952,600.07 0.06% - Mortgage-Backed Securities United States
3137H4BT 3137H4BT Freddie Mac Multifamily Structured Pass Through Certificates FRB SEP 25 31 32,486,236 $919,991.85 0.06% $919,991.85 0.06% - Mortgage-Backed Securities United States
3137HFP3 3137HFP3 Freddie Mac Multifamily Structured Pass Through Certificates FRB JUL 25 29 28,847,080 $840,520.59 0.05% $840,520.59 0.05% - Mortgage-Backed Securities United States
3137HK2F 3137HK2F Freddie Mac Multifamily Structured Pass Through Certificates FRB JAN 25 35 35,704,535 $825,847.62 0.05% $825,847.62 0.05% - Mortgage-Backed Securities United States
3137FYUL 3137FYUL Freddie Mac Multifamily Structured Pass Through Certificates FRB MAR 25 31 36,127,540 $820,972.91 0.05% $820,972.91 0.05% - Mortgage-Backed Securities United States
05551VBK 05551VBK BBCMS Trust 2021-C10 FRB JUL 15 54 12,255,777 $624,282.43 0.04% $624,282.43 0.04% - Commercial Mortgage-Backed Securities United States
505709AB 505709AB LAD Auto Receivables Trust 2024-3 144A 4.64% NOV 15 27 620,451 $622,085.52 0.04% $622,085.51 0.04% - Asset Backed Securities United States
08163CBE 08163CBE Benchmark 2021-B24 Mortgage Trust FRB MAR 15 54 15,331,697 $616,109.15 0.04% $616,109.16 0.04% - Commercial Mortgage-Backed Securities United States
3137HAAL 3137HAAL Freddie Mac Multifamily Structured Pass Through Certificates FRB MAY 25 33 29,100,000 $611,526.58 0.04% $611,526.58 0.04% - Mortgage-Backed Securities United States
19648FRX 19648FRX Colorado Health Facilities Authority CO Txbl-Ref-Covenant Living Commu 2.800 DEC 01 26 600,000 $598,184.56 0.04% $598,184.56 0.04% - Municipal United States
95003DBP 95003DBP Wells Fargo Commercial Mortgage Trust 2021-C60 FRB AUG 15 54 9,202,671 $579,405.17 0.04% $579,405.18 0.04% - Commercial Mortgage-Backed Securities United States
3137HHJ4 3137HHJ4 Freddie Mac Multifamily Structured Pass Through Certificates FRB SEP 25 34 7,419,164 $520,346.59 0.03% $520,346.59 0.03% - Mortgage-Backed Securities United States
3137FV5Q 3137FV5Q Freddie Mac Multifamily Structured Pass Through Certificates FRB JUN 25 30 9,672,915 $511,949.95 0.03% $511,949.95 0.03% - Mortgage-Backed Securities United States
05493EAZ 05493EAZ BBCMS Mortgage Trust 2021-C9 FRB FEB 15 54 7,801,054 $505,324.14 0.03% $505,324.14 0.03% - Commercial Mortgage-Backed Securities United States
61692CBK 61692CBK Morgan Stanley Capital I Trust 2021-L6 FRB JUN 15 54 11,979,818 $472,760.29 0.03% $472,760.29 0.03% - Commercial Mortgage-Backed Securities United States
78437XAB 78437XAB SBNA Auto Receivables Trust 2025-SF1 144A 5.12% MAR 17 31 460,719 $462,162.81 0.03% $462,162.82 0.03% - Asset Backed Securities United States
61691YAP 61691YAP Morgan Stanley Capital I Trust 2021-L5 FRB MAY 15 54 10,041,965 $456,025.10 0.03% $456,025.10 0.03% - Commercial Mortgage-Backed Securities United States
59447TV8 59447TV8 Michigan Finance Authority MI Txbl-Ser A-1A 1.300 JUL 25 61 446,940 $444,424.69 0.03% $444,424.69 0.03% - Municipal United States
3137FUZZ 3137FUZZ Freddie Mac Multifamily Structured Pass Through Certificates FRB MAY 25 30 6,326,494 $437,524.06 0.03% $437,524.06 0.03% - Mortgage-Backed Securities United States
3137H3EZ 3137H3EZ Freddie Mac Multifamily Structured Pass Through Certificates FRB SEP 25 31 9,783,880 $428,155.56 0.03% $428,155.56 0.03% - Mortgage-Backed Securities United States
3137F9ZC 3137F9ZC Freddie Mac Multifamily Structured Pass Through Certificates FRB JAN 25 31 11,388,256 $424,195.03 0.03% $424,195.04 0.03% - Mortgage-Backed Securities United States
3136BBTT 3136BBTT Fannie Mae REMICS 4% SEP 25 50 2,122,790 $418,912.66 0.03% $418,912.66 0.03% - Mortgage-Backed Securities United States
3137FXSE 3137FXSE Freddie Mac REMICS 2.5% MAR 25 51 2,405,585 $400,135.48 0.03% $400,135.48 0.03% - Mortgage-Backed Securities United States
3137FXZ5 3137FXZ5 Freddie Mac Multifamily Structured Pass Through Certificates FRB JAN 25 31 29,559,520 $394,418.29 0.03% $394,418.29 0.03% - Mortgage-Backed Securities United States
3137F9Z3 3137F9Z3 Freddie Mac Multifamily Structured Pass Through Certificates FRB JAN 25 31 8,529,316 $372,979.96 0.02% $372,979.95 0.02% - Mortgage-Backed Securities United States
3137H2NA 3137H2NA Freddie Mac Multifamily Structured Pass Through Certificates FRB JUL 25 31 7,521,262 $368,177.76 0.02% $368,177.76 0.02% - Mortgage-Backed Securities United States
3137HDJK 3137HDJK Freddie Mac Multifamily Structured Pass Through Certificates FRB MAY 25 29 25,401,461 $367,132.36 0.02% $367,132.36 0.02% - Mortgage-Backed Securities United States
3137H13T 3137H13T Freddie Mac Multifamily Structured Pass Through Certificates FRB MAY 25 31 4,421,663 $262,097.33 0.02% $262,097.32 0.02% - Mortgage-Backed Securities United States
3137FTG4 3137FTG4 Freddie Mac Multifamily Structured Pass Through Certificates FRB APR 25 30 3,519,182 $252,740.97 0.02% $252,740.97 0.02% - Mortgage-Backed Securities United States
3137H4SM 3137H4SM FHMS K136 XAM 0.567 DEC 25 31 8,215,224 $242,055.73 0.02% $242,055.74 0.02% - Mortgage-Backed Securities United States
3137F62R 3137F62R Freddie Mac Multifamily Structured Pass Through Certificates FRB SEP 25 30 3,529,812 $182,721.79 0.01% $182,721.79 0.01% - Mortgage-Backed Securities United States
016269AE 016269AE Alinea CLO 2018-1 Ltd 144A 4.784% JUL 20 31 53,384 $53,480.21 0.00% $53,480.21 0.00% - Collateralized Loan Obligations United States
SM11591P SM11591P USD ZC CPI APR 15 24 R 2.6365 APR 15 26 -40,400,000 $-40,402,910.23 0.00% $-40,400,000.00 -2.59% - U.S. Governments United States
SM11576P SM11576P USD ZC CPI MAR 19 24 R 2.482 MAR 19 26 OTC -79,900,000 $-79,900,000.00 -5.11% $-79,900,000.00 -5.11% - U.S. Governments United States
SM11746P SM11746P USD ZC CPI FEB 05 25 R 2.755 FEB 05 27 -80,400,000 $-80,400,000.00 0.00% $-80,400,000.00 -5.15% - U.S. Governments United States
SM11925P SM11925P USD ZC CPI OCT 14 25 P .000 OCT 14 26 -84,400,000 $-84,400,000.00 0.00% $-84,400,000.00 -5.40% - U.S. Governments United States
SM11926P SM11926P USD ZC CPI OCT 14 25 R 2.740 OCT 14 28 -84,400,000 $-84,400,000.00 0.00% $-84,400,000.00 -5.40% - U.S. Governments United States
CASH_USD CASH_USD Cash - 3,559,209.89 0.22% 3,486,364.32 0.22% - - -
CASH_DERV - Other - -79,899,999.96 -21.98% -343,442,086.13 -21.98% - - Other

*Short positions, unlike long positions, lose value if the underlying asset gains value.

Portfolio characteristics are based on equivalent exposure, which measures how a portfolio's value would change due to price changes in an asset held either directly or, in the case of a derivative contract, indirectly. The market value of the holding may differ.

The list of portfolio holdings is as of the date shown and may not represent current or future portfolio composition. This information should not be construed as a recommendation to buy or sell any of the securities mentioned.

This portfolio data has not been audited or adjusted for certain financial statement reclassifications. An audit could potentially result in adjustments to this data. For adjusted holdings information, please refer to the fund's quarterly portfolio holdings and semiannual reports. For audited portfolio holdings information, please refer to the fund's annual report.

A complete list of portfolio holdings for each MFS fund is generally available on mfs.com at the earliest, 19 days after the end of each month. Top 10 portfolio holdings are generally available at the earliest, 11 calendar days after the end of each month.

When posting a fund's top 10 securities holdings, if applicable, for funds with significant investments in both equity and debt instrument securities, the fund's top 10 equity and top 10 debt instrument securities will be made available. In addition, for funds that primarily invest in shares of MFS funds, when posting a fund's top 10 securities holdings, all of the following, as applicable, will be posted all securities positions in shares of MFS funds, top 10 aggregated equity securities contained within fund investments and top 10 aggregated debt instrument securities positions contained within underlying fund investments.

 

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This publication is authorized for distribution only when preceded or accompanied by a prospectus, or summary prospectus, for the portfolio being offered. Consider the fund's investment objectives, risks, charges and expenses. Contact MFS or view online at MFS.com. Read it carefully.

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