{
  "page": "compare",
  "query": {
    "a": "MMOOX",
    "b": "SPIP"
  },
  "retrieved_at": "2026-07-07T18:04:33+00:00",
  "disclaimer": "Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them.",
  "attribution": "Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC.",
  "terms": {
    "notice": "Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed.",
    "url": "https://fundwatcher.app/terms/"
  },
  "fund_a": {
    "name": "MassMutual Inflation-Protected and Income Fund",
    "ticker": "MMOOX",
    "slug": "MMOOX",
    "series_id": "S000003780",
    "html_url": "https://fundwatcher.app/funds/MMOOX/"
  },
  "fund_b": {
    "name": "State Street(R) SPDR(R) Portfolio TIPS ETF",
    "ticker": "SPIP",
    "slug": "SPIP",
    "series_id": "S000017330",
    "html_url": "https://fundwatcher.app/funds/SPIP/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2226961514007265871082913356",
    "coverage_b_by_a": "0.2226961514007265871082913356",
    "shared_count": 41,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "COLT Mortgage Loan Trust, Series 2022-1, Class A1",
        "value": "5073864.87",
        "weight": "0.02456552",
        "shared": false
      },
      {
        "name": "ERAC USA Finance LLC",
        "value": "3999109.20",
        "weight": "0.01936201",
        "shared": false
      },
      {
        "name": "Phillips 66",
        "value": "3997318.00",
        "weight": "0.01935333",
        "shared": false
      },
      {
        "name": "Sherwin-Williams Co/The",
        "value": "3991048.00",
        "weight": "0.01932298",
        "shared": false
      },
      {
        "name": "Penske Truck Leasing Co. L.P.",
        "value": "3987568.00",
        "weight": "0.01930613",
        "shared": false
      },
      {
        "name": "Entergy Corp",
        "value": "3970834.80",
        "weight": "0.01922511",
        "shared": false
      },
      {
        "name": "Amcor Flexibles North America Inc",
        "value": "2997309.30",
        "weight": "0.01451171",
        "shared": false
      },
      {
        "name": "Fidelity National Information Services Inc",
        "value": "2996998.80",
        "weight": "0.01451021",
        "shared": false
      },
      {
        "name": "Enbridge US Inc",
        "value": "2989800.00",
        "weight": "0.01447536",
        "shared": false
      },
      {
        "name": "Oak Street Investment Grade Net Lease Fund, Series 2021-1A, Class A1",
        "value": "2977645.82",
        "weight": "0.01441651",
        "shared": false
      },
      {
        "name": "Avis Budget Rental Car Funding AESOP LLC",
        "value": "2816545.56",
        "weight": "0.01363653",
        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "2812645.08",
        "weight": "0.01361765",
        "shared": true
      },
      {
        "name": "EART 2022-2A D",
        "value": "2723575.36",
        "weight": "0.01318641",
        "shared": false
      },
      {
        "name": "GREATAMERICA LEASING RECEIVABL GALC 2024 1 A3 144A",
        "value": "2715606.01",
        "weight": "0.01314782",
        "shared": false
      },
      {
        "name": "Verizon Master Trust",
        "value": "2698407.81",
        "weight": "0.01306456",
        "shared": false
      },
      {
        "name": "CPS Auto Receivables Trust 2021-C",
        "value": "2571852.11",
        "weight": "0.01245183",
        "shared": false
      },
      {
        "name": "SMB Private Education Loan Trust 2015-A",
        "value": "2506293.58",
        "weight": "0.01213442",
        "shared": false
      },
      {
        "name": "WLAKE 2025-3A A2 144A 4.31% 04-17-28",
        "value": "2408943.76",
        "weight": "0.01166309",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
        "value": "2291849.84",
        "weight": "0.01109617",
        "shared": true
      },
      {
        "name": "NAVSL 2021-A A 144A 0.84% 05-15-69",
        "value": "2283918.99",
        "weight": "0.01105778",
        "shared": false
      },
      {
        "name": "COMM Mortgage Trust, Series 2015-LC19, Class D",
        "value": "2265627.46",
        "weight": "0.01096922",
        "shared": false
      },
      {
        "name": "SMB Asset-Backed Repackaging Trust 2024-R1",
        "value": "2208065.77",
        "weight": "0.01069053",
        "shared": false
      },
      {
        "name": "iShares Ultra Short Duration Bond Active ETF",
        "value": "2187216.00",
        "weight": "0.01058958",
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      },
      {
        "name": "Octane Receivables Trust, Series 2022-2A, Class C",
        "value": "2158836.36",
        "weight": "0.01045218",
        "shared": false
      },
      {
        "name": "American Credit Acceptance Receivables Trust, Series 2024-2, Class C",
        "value": "2149736.00",
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        "shared": false
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
        "value": "2113144.86",
        "weight": "0.01023096",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034",
        "value": "2108100.50",
        "weight": "0.01020654",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
        "value": "2095416.63",
        "weight": "0.01014513",
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      },
      {
        "name": "TRICOLOR AUTO SECURITIZATION TRUST TAST 2025-2A A",
        "value": "2009358.19",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
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        "weight": "0.00968049",
        "shared": true
      },
      {
        "name": "SoFi Consumer Loan Program Trust, Series 2025-1, Class A",
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        "weight": "0.00934480",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
        "value": "1879279.79",
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        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1857449.75",
        "weight": "0.00899299",
        "shared": true
      },
      {
        "name": "OAK STREET INVESTMENT GRADE NET LEASE FUND SERIES OAKIG 2020-1A A1",
        "value": "1756646.87",
        "weight": "0.00850495",
        "shared": false
      },
      {
        "name": "Regatta XXIII Funding Ltd.",
        "value": "1699969.40",
        "weight": "0.00823054",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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        "weight": "0.00806781",
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      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1664162.68",
        "weight": "0.00805718",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "1632448.98",
        "weight": "0.00790363",
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      },
      {
        "name": "TAX 2024-1A A",
        "value": "1613633.25",
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        "shared": false
      },
      {
        "name": "RCKT TRUST RCKTL 2025 2A A 144A",
        "value": "1608449.70",
        "weight": "0.00778744",
        "shared": false
      },
      {
        "name": "Tricolor Auto Securitization Trust, Series 2025-1A, Class A",
        "value": "1594742.65",
        "weight": "0.00772107",
        "shared": false
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
        "value": "1574650.03",
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      },
      {
        "name": "AOMT 2022-2 A1",
        "value": "1550736.70",
        "weight": "0.00750802",
        "shared": false
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      {
        "name": "FIXED INC CLEARING CORP.REPO",
        "value": "1546376.10",
        "weight": "0.00748690",
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      },
      {
        "name": "Point Securitization Trust Series 2024-1, Class A1",
        "value": "1543264.46",
        "weight": "0.00747184",
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      },
      {
        "name": "STAR 2021-1 Trust",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
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        "weight": "0.00732307",
        "shared": true
      },
      {
        "name": "U.S. Treasury Notes",
        "value": "1511124.35",
        "weight": "0.00731623",
        "shared": true
      },
      {
        "name": "Bell Telephone Co of Canada or Bell Canada/The",
        "value": "1489892.25",
        "weight": "0.00721343",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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      },
      {
        "name": "U.S. Treasury Notes",
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      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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      {
        "name": "U.S. Treasury Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32",
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      },
      {
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        "value": "31399010.14",
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      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032",
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      },
      {
        "name": "U.S. Treasury Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29",
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      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
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        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031",
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        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33",
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        "shared": true
      },
      {
        "name": "U.S. Treasury Notes 0.125%, Due 1/15/2030",
        "value": "23679467.61",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
        "value": "23172078.52",
        "weight": "0.02327918",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027",
        "value": "23121747.56",
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        "shared": false
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
        "value": "22625103.88",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29",
        "value": "21667566.19",
        "weight": "0.02176771",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "18438828.05",
        "weight": "0.01852405",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28",
        "value": "18278261.90",
        "weight": "0.01836274",
        "shared": false
      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "15990732.48",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042",
        "value": "14801456.99",
        "weight": "0.01486987",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045",
        "value": "13943787.52",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28",
        "value": "13432595.41",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40",
        "value": "13306987.07",
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        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29",
        "value": "13210099.90",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043",
        "value": "12853097.29",
        "weight": "0.01291250",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Indexed Notes",
        "value": "12680991.00",
        "weight": "0.01273960",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46",
        "value": "11167880.18",
        "weight": "0.01121950",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
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      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48",
        "value": "9264000.12",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054",
        "value": "8700744.66",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053",
        "value": "8410266.72",
        "weight": "0.00844914",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation Linked Bonds",
        "value": "8128643.04",
        "weight": "0.00816621",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050",
        "value": "6834935.73",
        "weight": "0.00686653",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052",
        "value": "6746157.89",
        "weight": "0.00677734",
        "shared": true
      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Bonds",
        "value": "6318928.71",
        "weight": "0.00634813",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32",
        "value": "6136518.02",
        "weight": "0.00616488",
        "shared": true
      },
      {
        "name": "UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56",
        "value": "4373628.13",
        "weight": "0.00439384",
        "shared": true
      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026",
        "value": "0.03",
        "weight": "0.00000000",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-053553",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/927972/000141036826053553/0001410368-26-053553-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055586",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1064642/000141036826055586/0001410368-26-055586-index.htm"
    }
  ]
}