{
  "page": "compare",
  "query": {
    "a": "MSTLX",
    "b": "MPSAX"
  },
  "retrieved_at": "2026-07-07T19:19:20+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 Short-Duration Bond Fund",
    "ticker": "MSTLX",
    "slug": "MSTLX",
    "series_id": "S000003785",
    "html_url": "https://fundwatcher.app/funds/MSTLX/"
  },
  "fund_b": {
    "name": "MassMutual Inflation-Protected and Income Fund",
    "ticker": "MPSAX",
    "slug": "MPSAX",
    "series_id": "S000003780",
    "html_url": "https://fundwatcher.app/funds/MPSAX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.06274141867296585855282802596",
    "coverage_b_by_a": "0.06274141867296585855282802596",
    "shared_count": 19,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
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      },
      {
        "name": "Fortive Corp",
        "value": "2988090.30",
        "weight": "0.02338523",
        "shared": false
      },
      {
        "name": "CRH America Finance Inc",
        "value": "2978813.10",
        "weight": "0.02331263",
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      },
      {
        "name": "Charles Schwab Corp/The",
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      {
        "name": "Bayer Corporation 0% CP 20/07/2026",
        "value": "2961732.90",
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      {
        "name": "522 Funding CLO 2018-3A Ltd",
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        "weight": "0.01841159",
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      },
      {
        "name": "FIXED INC CLEARING CORP.REPO",
        "value": "2299785.92",
        "weight": "0.01799846",
        "shared": true
      },
      {
        "name": "Keurig Dr Pepper Inc 0% CP 23/04/2026",
        "value": "1994546.20",
        "weight": "0.01560961",
        "shared": false
      },
      {
        "name": "Penske Truck Leasing Co LP / PTL Finance Corp. 0% CP 28/04/2026",
        "value": "1993550.60",
        "weight": "0.01560182",
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      },
      {
        "name": "VW Credit Inc",
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      },
      {
        "name": "BHG Securitization Trust, Series 2021-B, Class C",
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        "shared": false
      },
      {
        "name": "Enterprise Fleet Financing LLC, Series 2026-1, Class A2",
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      },
      {
        "name": "Elmwood CLO I Ltd., Series 2019-1A, Class A1R3",
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      },
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        "name": "WLAKE 2025-2A A3",
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      },
      {
        "name": "LAD AUTO RECEIVABLES TRUST 2023-3 SER 2023-3A CL C REGD 144A P/P 6.43000000",
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      },
      {
        "name": "AFFRM 2024-B A 144A 4.62% 09-15-29",
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      },
      {
        "name": "SDART 2025-3 A3",
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      },
      {
        "name": "Nelnet Student Loan Trust 2018-5",
        "value": "954597.60",
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      },
      {
        "name": "State Street Navigator Securities Lending Government Money Market Portfolio",
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      },
      {
        "name": "HPS LOAN MANAGEMENT 2021-16 LTD HLM 2021-16A A1R",
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      },
      {
        "name": "BLUE OWL TECHNOL",
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      {
        "name": "GOLUB CAPITAL",
        "value": "847244.50",
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      {
        "name": "Sofi Professional Loan Program 2019-A LLC",
        "value": "840466.11",
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      },
      {
        "name": "ENSTAR GROUP LTD",
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        "weight": "0.00638757",
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      },
      {
        "name": "Woori Bank",
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        "weight": "0.00634272",
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      {
        "name": "SANTOS FINANCE LTD REGD 144A P/P 3.64900000",
        "value": "771981.87",
        "weight": "0.00604164",
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      {
        "name": "BGC GROUP INC",
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      {
        "name": "OAK STREET INVESTMENT GRADE NET LEASE FUND SERIES OAKIG 2020-1A A1",
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      },
      {
        "name": "Symphony CLO XXII Ltd",
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      {
        "name": "BLACKSTONE SEC",
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      {
        "name": "Whitebox CLO III Ltd., Series 2021-3A, Class A1R",
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      {
        "name": "CIFC Funding 2022-IV Ltd",
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      },
      {
        "name": "PIEDMONT OPERAT",
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      {
        "name": "ANGINC 5.25 06/03/30 144A",
        "value": "697147.26",
        "weight": "0.00545598",
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      },
      {
        "name": "HUMANA INC",
        "value": "682254.75",
        "weight": "0.00533943",
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      },
      {
        "name": "SMB PRIVATE EDUCATION LOAN TRUST 2023-D SER 2023-D CL A1B V/R REGD 144A P/P 5.63385000",
        "value": "664458.00",
        "weight": "0.00520015",
        "shared": false
      },
      {
        "name": "Laurel Road Prime Student Loan Trust 2019-A",
        "value": "664377.46",
        "weight": "0.00519951",
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      },
      {
        "name": "SYNOVUS BANK GA",
        "value": "660320.25",
        "weight": "0.00516776",
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      },
      {
        "name": "MORGAN STANLEY",
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        "weight": "0.00495421",
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      {
        "name": "NWSA 3.875 05/15/29 144A",
        "value": "632123.71",
        "weight": "0.00494709",
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      },
      {
        "name": "HIGHWOODS REALTY",
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        "weight": "0.00494643",
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      },
      {
        "name": "Cox Enterprises, Inc. 1.80 10/01/2030",
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        "weight": "0.00493357",
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      {
        "name": "Fortitude Global Funding 4.63 10/06/2028",
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      {
        "name": "JH North America Holdings Inc.",
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      {
        "name": "CELANESE US HLDS",
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      },
      {
        "name": "ELLINGTON FINANCIAL MORTGAGE T EFMT 2024 INV2 A2 144A",
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      },
      {
        "name": "Ellington Financial Mortgage Trust",
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      },
      {
        "name": "ORACLE CORP",
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      {
        "name": "Citadel Finance LLC",
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      {
        "name": "TRTN 2.05 04/15/26 144A",
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    ],
    "b_top": [
      {
        "name": "COLT Mortgage Loan Trust, Series 2022-1, Class A1",
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      {
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        "name": "Sherwin-Williams Co/The",
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      {
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      {
        "name": "Entergy Corp",
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      {
        "name": "Oak Street Investment Grade Net Lease Fund, Series 2021-1A, Class A1",
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      {
        "name": "Avis Budget Rental Car Funding AESOP LLC",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029",
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      {
        "name": "EART 2022-2A D",
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      },
      {
        "name": "GREATAMERICA LEASING RECEIVABL GALC 2024 1 A3 144A",
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      },
      {
        "name": "Verizon Master Trust",
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      {
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      {
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      {
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      },
      {
        "name": "U.S. Treasury Inflation-Linked Notes",
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      {
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        "name": "SMB Asset-Backed Repackaging Trust 2024-R1",
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      {
        "name": "iShares Ultra Short Duration Bond Active ETF",
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      {
        "name": "American Credit Acceptance Receivables Trust, Series 2024-2, Class C",
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      {
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      },
      {
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      {
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      {
        "name": "TRICOLOR AUTO SECURITIZATION TRUST TAST 2025-2A A",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033",
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      },
      {
        "name": "SoFi Consumer Loan Program Trust, Series 2025-1, Class A",
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      },
      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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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 Notes",
        "value": "1857449.75",
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      },
      {
        "name": "OAK STREET INVESTMENT GRADE NET LEASE FUND SERIES OAKIG 2020-1A A1",
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      },
      {
        "name": "Regatta XXIII Funding Ltd.",
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      {
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      },
      {
        "name": "U.S. Treasury Notes",
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      },
      {
        "name": "U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028",
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      },
      {
        "name": "TAX 2024-1A A",
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      },
      {
        "name": "RCKT TRUST RCKTL 2025 2A A 144A",
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        "name": "Tricolor Auto Securitization Trust, Series 2025-1A, Class A",
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      {
        "name": "U.S. Treasury Inflation-Protected Indexed Notes",
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      },
      {
        "name": "AOMT 2022-2 A1",
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      },
      {
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        "value": "1546376.10",
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      },
      {
        "name": "Point Securitization Trust Series 2024-1, Class A1",
        "value": "1543264.46",
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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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      },
      {
        "name": "U.S. Treasury Notes",
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      },
      {
        "name": "Bell Telephone Co of Canada or Bell Canada/The",
        "value": "1489892.25",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-053584",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/927972/000141036826053584/0001410368-26-053584-index.htm"
    },
    {
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      "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"
    }
  ]
}