{
  "page": "compare",
  "query": {
    "a": "MITIX",
    "b": "SPIN"
  },
  "retrieved_at": "2026-07-07T17:27:38+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": "MITIX",
    "slug": "MITIX",
    "series_id": "S000000696",
    "html_url": "https://fundwatcher.app/funds/MITIX/"
  },
  "fund_b": {
    "name": "State Street(R) US Equity Premium Income ETF",
    "ticker": "SPIN",
    "slug": "SPIN",
    "series_id": "S000087670",
    "html_url": "https://fundwatcher.app/funds/SPIN/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.5031163404897149877599565750",
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        "name": "LAM RESEARCH CORP",
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        "name": "GOLDMAN SACHS GROUP INC",
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        "name": "WASTE MANAGEMENT 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": "HOME DEPOT INC",
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        "name": "ADV MICRO DEVICE",
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        "name": "INTERCONTINENTAL EXCHANGE INC",
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        "name": "EXXON MOBIL CORP",
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        "name": "BANK OF AMERICA CORPORATION",
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        "name": "PARKER HANNIFIN CORP",
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        "name": "EQUINIX INC",
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      {
        "name": "CHEVRON CORP",
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      {
        "name": "WALMART INC",
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      {
        "name": "SYNOPSYS INC",
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      {
        "name": "MASTERCARD INC CL A",
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      {
        "name": "SERVICENOW INC",
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        "name": "UNITED RENTALS INC",
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        "name": "EATON CORP PLC",
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      {
        "name": "PHILIP MORRIS INTL INC",
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      {
        "name": "DANAHER CORP",
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      {
        "name": "AMPHENOL CORPORATION CL A",
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      },
      {
        "name": "MARTIN MAR MTLS",
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      },
      {
        "name": "CBRE GROUP INC - CL A",
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      },
      {
        "name": "MERCK & CO",
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      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "350460.89",
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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": "0001410368-26-055473",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1516212/000141036826055473/0001410368-26-055473-index.htm"
    }
  ]
}