{
  "page": "compare",
  "query": {
    "a": "NOMIX",
    "b": "MPSIX"
  },
  "retrieved_at": "2026-07-07T18:24:09+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": "Mid Cap Index Fund",
    "ticker": "NOMIX",
    "slug": "NOMIX",
    "series_id": "S000001273",
    "html_url": "https://fundwatcher.app/funds/NOMIX/"
  },
  "fund_b": {
    "name": "MidCap S&P 400 Index Fund",
    "ticker": "MPSIX",
    "slug": "MPSIX",
    "series_id": "S000007079",
    "html_url": "https://fundwatcher.app/funds/MPSIX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.8755708758230169152212244291",
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      {
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        "name": "XPO LOGISTICS INC",
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        "name": "ANNALY CAPITAL MGMT INC REIT",
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      {
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      {
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      {
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      {
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        "name": "GRACO INC",
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      },
      {
        "name": "OKTA INC CL A",
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      },
      {
        "name": "CARLISLE COS INC",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002066578-26-001926",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/916620/000206657826001926/0002066578-26-001926-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000898745-26-000440",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/898745/000089874526000440/0000898745-26-000440-index.htm"
    }
  ]
}