{
  "page": "compare",
  "query": {
    "a": "FIONX",
    "b": "FSPSX"
  },
  "retrieved_at": "2026-07-07T16:40:11+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": "Fidelity SAI International Index Fund",
    "ticker": "FIONX",
    "slug": "FIONX",
    "series_id": "S000051996",
    "html_url": "https://fundwatcher.app/funds/FIONX/"
  },
  "fund_b": {
    "name": "Fidelity International Index Fund",
    "ticker": "FSPSX",
    "slug": "FSPSX",
    "series_id": "S000006023",
    "html_url": "https://fundwatcher.app/funds/FSPSX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.9586532235715438456367556146",
    "coverage_b_by_a": "0.9586532235715438456367556149",
    "shared_count": 696,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-02-28"
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        "name": "TOYOTA MOTOR CORP",
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      {
        "name": "Fidelity Cash Central Fund",
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        "name": "BHP GROUP LTD",
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        "name": "ALLIANZ SE (REGD)",
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      {
        "name": "Airbus SE",
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        "name": "ABB Ltd. (Registered)",
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        "name": "TOKYO ELECTRON",
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        "name": "BNP PARIBAS",
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        "name": "GSK PLC",
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        "name": "SOFTBANK GROUP CORP",
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        "name": "CIE FINANCI-REG",
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      {
        "name": "Sanofi SA",
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        "name": "ZURICH INSURANCE",
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      {
        "name": "RIO TINTO PLC",
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        "name": "INTESA SANPAOLO",
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        "name": "BP PLC",
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        "name": "DBS GROUP HLDGS",
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      {
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      {
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        "name": "SIEMENS AG-REG",
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      {
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      {
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        "name": "CIE FINANCI-REG",
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      {
        "name": "MITSUBISHI CORP",
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        "name": "Sanofi SA",
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      {
        "name": "NATL AUST BANK",
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        "name": "WESTPAC BANKING CORPORATION",
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      {
        "name": "MITSUBISHI HEAVY INDS LTD",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-002055",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/35315/000003540226002055/0000035402-26-002055-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002590",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/819118/000003540226002590/0000035402-26-002590-index.htm"
    }
  ]
}