{
  "page": "compare",
  "query": {
    "a": "MOSAX",
    "b": "OAKIX"
  },
  "retrieved_at": "2026-07-07T17:11:40+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 Overseas Fund",
    "ticker": "MOSAX",
    "slug": "MOSAX",
    "series_id": "S000003667",
    "html_url": "https://fundwatcher.app/funds/MOSAX/"
  },
  "fund_b": {
    "name": "Oakmark International Fund",
    "ticker": "OAKIX",
    "slug": "OAKIX",
    "series_id": "S000002762",
    "html_url": "https://fundwatcher.app/funds/OAKIX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.4121880576407298521379538795",
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    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
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        "name": "State Street Navigator Securities Lending Government Money Market Portfolio",
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      },
      {
        "name": "BNP PARIBAS",
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      },
      {
        "name": "TSMC",
        "value": "5750294.57",
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      },
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        "name": "ROCHE HOLDING AG",
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      {
        "name": "L'Air Liquide, societe anonyme pour l'Etude et l'Exploitation des procedes Georges Claude",
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        "name": "Novartis AG (Registered)",
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      },
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      },
      {
        "name": "Compass Group PLC",
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        "name": "SAP SE",
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        "name": "TOTALENERGIES SE",
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      },
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        "name": "HITACHI LTD",
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      },
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        "name": "MITSUB ELEC CORP",
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        "name": "Kone OYJ, Class B",
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        "name": "MERCK Kommanditgesellschaft auf Aktien",
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  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-053570",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/916053/000141036826053570/0001410368-26-053570-index.htm"
    },
    {
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      "accession_no": "0001410368-26-055172",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/872323/000141036826055172/0001410368-26-055172-index.htm"
    }
  ]
}