{
  "page": "compare",
  "query": {
    "a": "FXAIX",
    "b": "XAOKX"
  },
  "retrieved_at": "2026-07-07T08:43:58+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 500 Index Fund",
    "ticker": "FXAIX",
    "slug": "FXAIX",
    "series_id": "S000006027",
    "html_url": "https://fundwatcher.app/funds/FXAIX/"
  },
  "fund_b": {
    "name": "VIP Index 500 Portfolio",
    "ticker": "XAOKX",
    "slug": "XAOKX",
    "series_id": "S000007726",
    "html_url": "https://fundwatcher.app/funds/XAOKX/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.9733650277924888345818693169",
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    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
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      {
        "name": "TESLA INC",
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        "name": "MASTERCARD INC CL A",
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        "name": "ADV MICRO DEVICE",
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        "name": "ABBOTT LABS",
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      {
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        "name": "BANK OF AMERICA CORPORATION",
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      {
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      {
        "name": "LAM RESEARCH CORP",
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      {
        "name": "RTX CORP",
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        "name": "INTL BUS MACH CORP",
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        "name": "MCDONALDS CORP",
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      {
        "name": "PEPSICO INC",
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      },
      {
        "name": "VERIZON COMMUNICATIONS INC",
        "value": "66811682.00",
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      {
        "name": "INTEL CORP",
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      },
      {
        "name": "AT&T INC",
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      {
        "name": "CITIGROUP INC",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000035402-26-002559",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/819118/000003540226002559/0000035402-26-002559-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-003487",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/831016/000003540226003487/0000035402-26-003487-index.htm"
    }
  ]
}