{
  "page": "compare",
  "query": {
    "a": "VSTIX",
    "b": "SSSPX"
  },
  "retrieved_at": "2026-07-07T09:49:26+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": "Stock Index Fund",
    "ticker": "VSTIX",
    "slug": "VSTIX",
    "series_id": "S000008009",
    "html_url": "https://fundwatcher.app/funds/VSTIX/"
  },
  "fund_b": {
    "name": "State Street S&P 500 Index V.I.S. Fund",
    "ticker": "SSSPX",
    "slug": "SSSPX",
    "series_id": "S000001648",
    "html_url": "https://fundwatcher.app/funds/SSSPX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.9710316386718196134689263818",
    "coverage_b_by_a": "0.9710316386718196134689263818",
    "shared_count": 498,
    "as_of": {
      "a": "2026-02-28",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "NVIDIA CORP",
        "value": "484475378.66",
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      },
      {
        "name": "APPLE INC",
        "value": "439231479.96",
        "weight": "0.06612673",
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      },
      {
        "name": "MICROSOFT CORP",
        "value": "328442570.90",
        "weight": "0.04944735",
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      },
      {
        "name": "AMAZON.COM INC",
        "value": "229865370.00",
        "weight": "0.03460646",
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      },
      {
        "name": "ALPHABET INC CL A",
        "value": "204089319.36",
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      },
      {
        "name": "BROADCOM INC",
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      },
      {
        "name": "ALPHABET INC CL C",
        "value": "162945158.88",
        "weight": "0.02453155",
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      },
      {
        "name": "META PLATFORMS INC CL A",
        "value": "158839101.72",
        "weight": "0.02391338",
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      },
      {
        "name": "TESLA INC",
        "value": "127262391.72",
        "weight": "0.01915948",
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      },
      {
        "name": "BERKSHIRE HATH-B",
        "value": "104186333.50",
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      },
      {
        "name": "LILLY ELI and CO",
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      },
      {
        "name": "JPMORGAN CHASE and CO",
        "value": "91983691.80",
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      },
      {
        "name": "EXXON MOBIL CORP",
        "value": "72363080.00",
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      },
      {
        "name": "JOHNSON&JOHNSON",
        "value": "67347385.56",
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      },
      {
        "name": "WALMART INC",
        "value": "63131041.80",
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      },
      {
        "name": "VISA INC-CLASS A",
        "value": "60791704.74",
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      },
      {
        "name": "MICRON TECHNOLOGY INC",
        "value": "52081918.63",
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      },
      {
        "name": "COSTCO WHOLESALE CORP",
        "value": "50404054.14",
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      },
      {
        "name": "MASTERCARD INC CL A",
        "value": "47739000.21",
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      },
      {
        "name": "ABBVIE INC",
        "value": "46062078.00",
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      },
      {
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      },
      {
        "name": "PROCTER & GAMBLE",
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      },
      {
        "name": "HOME DEPOT INC",
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      },
      {
        "name": "GENERAL ELECTRIC CO",
        "value": "40563286.16",
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      },
      {
        "name": "CHEVRON CORP",
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      },
      {
        "name": "CATERPILLAR INC",
        "value": "39164968.92",
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      },
      {
        "name": "BANK OF AMERICA CORPORATION",
        "value": "37680299.91",
        "weight": "0.00567281",
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      },
      {
        "name": "ADV MICRO DEVICE",
        "value": "36764762.51",
        "weight": "0.00553497",
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      },
      {
        "name": "COCA-COLA CO/THE",
        "value": "35602326.52",
        "weight": "0.00535997",
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      },
      {
        "name": "CISCO SYSTEMS INC",
        "value": "35303601.24",
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      },
      {
        "name": "PALANTIR TECHNOLOGIES INC",
        "value": "35199112.68",
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      },
      {
        "name": "MERCK & CO",
        "value": "34581068.70",
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      },
      {
        "name": "APPLIED MATERIALS INC",
        "value": "33313404.00",
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      },
      {
        "name": "LAM RESEARCH CORP",
        "value": "32965158.27",
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      },
      {
        "name": "PHILIP MORRIS INTL INC",
        "value": "32725516.46",
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      },
      {
        "name": "RTX CORP",
        "value": "30538481.16",
        "weight": "0.00459760",
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      },
      {
        "name": "UNITEDHEALTH GRP",
        "value": "29836116.72",
        "weight": "0.00449186",
        "shared": true
      },
      {
        "name": "GOLDMAN SACHS GROUP INC",
        "value": "29008768.36",
        "weight": "0.00436730",
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      },
      {
        "name": "WELLS FARGO & CO",
        "value": "28783696.95",
        "weight": "0.00433341",
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      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "27759992.00",
        "weight": "0.00417929",
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      },
      {
        "name": "ORACLE CORP",
        "value": "27555771.80",
        "weight": "0.00414855",
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      },
      {
        "name": "MCDONALDS CORP",
        "value": "27376886.20",
        "weight": "0.00412162",
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      },
      {
        "name": "LINDE PLC",
        "value": "26722467.60",
        "weight": "0.00402309",
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      },
      {
        "name": "GE VERNOVA LLC",
        "value": "26640432.00",
        "weight": "0.00401074",
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      },
      {
        "name": "PEPSICO INC",
        "value": "26114838.48",
        "weight": "0.00393161",
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      },
      {
        "name": "INTL BUS MACH CORP",
        "value": "25295073.84",
        "weight": "0.00380820",
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      },
      {
        "name": "VERIZON COMMUNICATIONS INC",
        "value": "23874812.82",
        "weight": "0.00359438",
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      },
      {
        "name": "AMGEN INC",
        "value": "23427008.64",
        "weight": "0.00352696",
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      },
      {
        "name": "INTEL CORP",
        "value": "23011658.91",
        "weight": "0.00346443",
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      },
      {
        "name": "ABBOTT LABS",
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      }
    ],
    "b_top": [
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      },
      {
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      {
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      {
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        "value": "6780229.85",
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      },
      {
        "name": "ALPHABET INC CL A",
        "value": "5587578.36",
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      },
      {
        "name": "BROADCOM INC",
        "value": "4890567.51",
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      },
      {
        "name": "ALPHABET INC CL C",
        "value": "4490219.58",
        "weight": "0.02379909",
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      },
      {
        "name": "META PLATFORMS INC CL A",
        "value": "4170255.57",
        "weight": "0.02210322",
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      },
      {
        "name": "TESLA INC",
        "value": "3501885.00",
        "weight": "0.01856071",
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      },
      {
        "name": "BERKSHIRE HATH-B",
        "value": "2928391.20",
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      },
      {
        "name": "JPMORGAN CHASE and CO",
        "value": "2647145.84",
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      },
      {
        "name": "LILLY ELI and CO",
        "value": "2437390.50",
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      },
      {
        "name": "EXXON MOBIL CORP",
        "value": "2371337.82",
        "weight": "0.01256858",
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      },
      {
        "name": "JOHNSON&JOHNSON",
        "value": "1974830.76",
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      },
      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "1869107.15",
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      },
      {
        "name": "WALMART INC",
        "value": "1823933.28",
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      },
      {
        "name": "VISA INC-CLASS A",
        "value": "1695264.16",
        "weight": "0.00898525",
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      },
      {
        "name": "COSTCO WHOLESALE CORP",
        "value": "1469734.25",
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      },
      {
        "name": "MASTERCARD INC CL A",
        "value": "1355577.58",
        "weight": "0.00718484",
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      },
      {
        "name": "NETFLIX INC",
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      },
      {
        "name": "CHEVRON CORP",
        "value": "1287538.70",
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      },
      {
        "name": "ABBVIE INC",
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      },
      {
        "name": "MICRON TECHNOLOGY INC",
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      },
      {
        "name": "PROCTER & GAMBLE",
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      },
      {
        "name": "PALANTIR TECHNOLOGIES INC",
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      },
      {
        "name": "CATERPILLAR INC",
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      },
      {
        "name": "ADV MICRO DEVICE",
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      },
      {
        "name": "HOME DEPOT INC",
        "value": "1090928.13",
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      },
      {
        "name": "BANK OF AMERICA CORPORATION",
        "value": "1076887.50",
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      },
      {
        "name": "CISCO SYSTEMS INC",
        "value": "1026593.29",
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      },
      {
        "name": "MERCK & CO",
        "value": "1004301.21",
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      },
      {
        "name": "GENERAL ELECTRIC CO",
        "value": "992059.92",
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      },
      {
        "name": "COCA-COLA CO/THE",
        "value": "987205.05",
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      },
      {
        "name": "APPLIED MATERIALS INC",
        "value": "901642.02",
        "weight": "0.00477889",
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      },
      {
        "name": "LAM RESEARCH CORP",
        "value": "883056.78",
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      },
      {
        "name": "RTX CORP",
        "value": "863613.30",
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      },
      {
        "name": "PHILIP MORRIS INTL INC",
        "value": "859271.98",
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      },
      {
        "name": "GOLDMAN SACHS GROUP INC",
        "value": "845144.01",
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      },
      {
        "name": "ORACLE CORP",
        "value": "829994.62",
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      },
      {
        "name": "WELLS FARGO & CO",
        "value": "817276.26",
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      },
      {
        "name": "UNITEDHEALTH GRP",
        "value": "813934.72",
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      },
      {
        "name": "GE VERNOVA LLC",
        "value": "783864.20",
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      },
      {
        "name": "LINDE PLC",
        "value": "765949.20",
        "weight": "0.00405969",
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      },
      {
        "name": "INTL BUS MACH CORP",
        "value": "750681.83",
        "weight": "0.00397877",
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      },
      {
        "name": "MCDONALDS CORP",
        "value": "735018.35",
        "weight": "0.00389575",
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      },
      {
        "name": "PEPSICO INC",
        "value": "709364.72",
        "weight": "0.00375978",
        "shared": true
      },
      {
        "name": "VERIZON COMMUNICATIONS INC",
        "value": "707669.40",
        "weight": "0.00375079",
        "shared": true
      },
      {
        "name": "INTEL CORP",
        "value": "687766.05",
        "weight": "0.00364530",
        "shared": true
      },
      {
        "name": "AT&T INC",
        "value": "681931.77",
        "weight": "0.00361438",
        "shared": true
      },
      {
        "name": "MORGAN STANLEY",
        "value": "662558.82",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001410368-26-041585",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/719423/000141036826041585/0001410368-26-041585-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055580",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/746687/000141036826055580/0001410368-26-055580-index.htm"
    }
  ]
}