{
  "page": "compare",
  "query": {
    "a": "S000000696",
    "b": "SSUSX"
  },
  "retrieved_at": "2026-07-07T18:46:44+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": "Massachusetts Investors Trust",
    "ticker": "",
    "slug": "S000000696",
    "series_id": "S000000696",
    "html_url": "https://fundwatcher.app/funds/S000000696/"
  },
  "fund_b": {
    "name": "State Street U.S. Equity V.I.S. Fund",
    "ticker": "SSUSX",
    "slug": "SSUSX",
    "series_id": "S000001639",
    "html_url": "https://fundwatcher.app/funds/SSUSX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.4977724899843911224291690619",
    "coverage_b_by_a": "0.4977724899843911224291690618",
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    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
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      },
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      },
      {
        "name": "MICROSOFT CORP",
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      },
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        "name": "ALPHABET INC CL A",
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      {
        "name": "AMAZON.COM INC",
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      },
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      },
      {
        "name": "LAM RESEARCH CORP",
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      },
      {
        "name": "GOLDMAN SACHS GROUP INC",
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      {
        "name": "VISA INC-CLASS A",
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      },
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        "name": "EXXON MOBIL CORP",
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      },
      {
        "name": "RTX CORP",
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      },
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        "name": "MASTERCARD INC CL A",
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      {
        "name": "CHUBB LTD",
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        "name": "LINDE PLC",
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        "name": "PROCTER & GAMBLE",
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        "name": "CME GROUP INC CL A",
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      {
        "name": "ANALOG DEVICES INC",
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        "name": "COSTCO WHOLESALE CORP",
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      {
        "name": "KLA CORP",
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        "name": "THERMO FISHER SCIENTIFIC INC",
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      {
        "name": "ALLIANT ENERGY CORPORATION",
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        "name": "EATON CORP PLC",
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      {
        "name": "HOWMET AEROSPACE INC",
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      {
        "name": "SEAGATE TECHNOLOGY HOLDINGS PLC",
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      {
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        "name": "TE CONNECTIVITY PLC",
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        "name": "ARAMARK",
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      {
        "name": "TEXAS INSTRUMENTS INC",
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      {
        "name": "WASTE MANAGEMENT INC",
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      {
        "name": "CHECK POINT SOFTWARE TECHS LTD",
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      {
        "name": "HUBBELL INC",
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      {
        "name": "SOUTHERN CO",
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      {
        "name": "SALESFORCE INC",
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      {
        "name": "AMETEK INC NEW",
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      {
        "name": "ABBOTT LABS",
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        "name": "WILLIS TOWERS WATSON PLC",
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      {
        "name": "META PLATFORMS INC CL A",
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      {
        "name": "JPMORGAN CHASE and CO",
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      {
        "name": "State Street Navigator Securities Lending Portfolio II",
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      {
        "name": "S&P GLOBAL INC",
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      {
        "name": "LILLY ELI and CO",
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      {
        "name": "VISA INC-CLASS A",
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      {
        "name": "ADV MICRO DEVICE",
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      {
        "name": "HOME DEPOT INC",
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      {
        "name": "INTERCONTINENTAL EXCHANGE INC",
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      {
        "name": "APPLIED MATERIALS INC",
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      {
        "name": "EXXON MOBIL CORP",
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      {
        "name": "BANK OF AMERICA CORPORATION",
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      {
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      {
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        "name": "EMERSON ELECTRIC CO",
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      {
        "name": "UBER TECHNOLOGIES INC",
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      {
        "name": "WESTINGHOUSE AIR BRAKE TECH CORP",
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      {
        "name": "NEXTERA ENERGY INC",
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      {
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      {
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        "name": "BERKSHIRE HATH-B",
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      {
        "name": "SEMPRA ENERGY",
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      {
        "name": "CHEVRON CORP",
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      },
      {
        "name": "BOSTON SCIENTIFIC CORP",
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      {
        "name": "EQUINIX INC",
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      {
        "name": "WALMART INC",
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      {
        "name": "SYNOPSYS INC",
        "value": "159384.96",
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      },
      {
        "name": "MASTERCARD INC CL A",
        "value": "154394.94",
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      {
        "name": "UNITED RENTALS INC",
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      {
        "name": "AMPHENOL CORPORATION CL A",
        "value": "151746.35",
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      {
        "name": "MARSH & MCLENNAN",
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      },
      {
        "name": "SALESFORCE INC",
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      {
        "name": "ALPHABET INC CL C",
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      {
        "name": "DANAHER CORP",
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      },
      {
        "name": "BJS WHSL CLUB HLDGS INC",
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      {
        "name": "NETFLIX INC",
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      },
      {
        "name": "SERVICENOW INC",
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      },
      {
        "name": "EATON CORP PLC",
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      },
      {
        "name": "PHILIP MORRIS INTL INC",
        "value": "133098.70",
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      },
      {
        "name": "RTX CORP",
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      },
      {
        "name": "MARTIN MAR MTLS",
        "value": "125977.52",
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      },
      {
        "name": "CBRE GROUP INC - CL A",
        "value": "122049.46",
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      },
      {
        "name": "MERCK & CO",
        "value": "119327.68",
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      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "115018.02",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-050728",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/63091/000141036826050728/0001410368-26-050728-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055549",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/746687/000141036826055549/0001410368-26-055549-index.htm"
    }
  ]
}