{
  "page": "compare",
  "query": {
    "a": "SHSSX",
    "b": "VHCIX"
  },
  "retrieved_at": "2026-07-07T17:15:07+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": "BlackRock Health Sciences Opportunities Portfolio",
    "ticker": "SHSSX",
    "slug": "SHSSX",
    "series_id": "S000001877",
    "html_url": "https://fundwatcher.app/funds/SHSSX/"
  },
  "fund_b": {
    "name": "VANGUARD HEALTH CARE INDEX FUND",
    "ticker": "VHCIX",
    "slug": "VHCIX",
    "series_id": "S000004450",
    "html_url": "https://fundwatcher.app/funds/VHCIX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.7005300492340903989014752061",
    "coverage_b_by_a": "0.7005300492340903989014752061",
    "shared_count": 107,
    "as_of": {
      "a": "2026-02-27",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "LILLY ELI and CO",
        "value": "740960740.58",
        "weight": "0.11265830",
        "shared": true
      },
      {
        "name": "JOHNSON&JOHNSON",
        "value": "667862070.33",
        "weight": "0.10154412",
        "shared": true
      },
      {
        "name": "ABBVIE INC",
        "value": "268679016.00",
        "weight": "0.04085091",
        "shared": true
      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "258640056.90",
        "weight": "0.03932455",
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      },
      {
        "name": "MERCK & CO",
        "value": "231767018.92",
        "weight": "0.03523868",
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      },
      {
        "name": "AMGEN INC",
        "value": "228299409.28",
        "weight": "0.03471145",
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      },
      {
        "name": "UNITEDHEALTH GRP",
        "value": "198810958.97",
        "weight": "0.03022792",
        "shared": true
      },
      {
        "name": "INTUITIVE SURGICAL INC",
        "value": "160645369.01",
        "weight": "0.02442509",
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      },
      {
        "name": "ABBOTT LABS",
        "value": "158456366.90",
        "weight": "0.02409227",
        "shared": true
      },
      {
        "name": "DANAHER CORP",
        "value": "150858682.88",
        "weight": "0.02293709",
        "shared": true
      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "148665387.46",
        "weight": "0.02260361",
        "shared": true
      },
      {
        "name": "EDWARDS LIFESCIENCES CORP",
        "value": "147948008.25",
        "weight": "0.02249454",
        "shared": true
      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "135792581.94",
        "weight": "0.02064639",
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      },
      {
        "name": "MEDTRONIC PLC",
        "value": "130504913.54",
        "weight": "0.01984243",
        "shared": false
      },
      {
        "name": "STRYKER CORP",
        "value": "129051689.66",
        "weight": "0.01962148",
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      },
      {
        "name": "TEVA PHARMACEUTICAL IND ADR",
        "value": "117666648.98",
        "weight": "0.01789045",
        "shared": false
      },
      {
        "name": "CENCORA INC",
        "value": "98937140.40",
        "weight": "0.01504275",
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      },
      {
        "name": "BOSTON SCIENTIFIC CORP",
        "value": "98703219.70",
        "weight": "0.01500719",
        "shared": true
      },
      {
        "name": "ASTRAZENECA PLC",
        "value": "94646702.97",
        "weight": "0.01439042",
        "shared": false
      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "93058072.80",
        "weight": "0.01414888",
        "shared": false
      },
      {
        "name": "MCKESSON CORP",
        "value": "78655868.94",
        "weight": "0.01195912",
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      },
      {
        "name": "ROCHE HOLDINGS AG (GENUSSCHEINE)",
        "value": "70333000.39",
        "weight": "0.01069368",
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      },
      {
        "name": "BIOGEN INC",
        "value": "69858542.16",
        "weight": "0.01062154",
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      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "68964045.08",
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      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "68520410.53",
        "weight": "0.01041809",
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      },
      {
        "name": "BRISTOL-MYERS SQUIBB CO",
        "value": "68425129.08",
        "weight": "0.01040360",
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      },
      {
        "name": "HCA HEALTHCARE INC",
        "value": "66585938.50",
        "weight": "0.01012396",
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      },
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "57464138.82",
        "weight": "0.00873705",
        "shared": false
      },
      {
        "name": "EXACT SCIENCES CORP",
        "value": "56659373.22",
        "weight": "0.00861469",
        "shared": true
      },
      {
        "name": "RHYTHM PHARMACEUTICALS INC",
        "value": "49962274.89",
        "weight": "0.00759644",
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      },
      {
        "name": "IDEXX LABS INC",
        "value": "49005849.33",
        "weight": "0.00745102",
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      },
      {
        "name": "DEXCOM INC",
        "value": "48740557.67",
        "weight": "0.00741069",
        "shared": true
      },
      {
        "name": "PENUMBRA INC",
        "value": "45878258.24",
        "weight": "0.00697549",
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      },
      {
        "name": "INSMED INC",
        "value": "45001043.49",
        "weight": "0.00684212",
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      },
      {
        "name": "Novartis AG",
        "value": "42434909.20",
        "weight": "0.00645195",
        "shared": false
      },
      {
        "name": "INCYTE CORP",
        "value": "40120540.98",
        "weight": "0.00610007",
        "shared": true
      },
      {
        "name": "MEDLINE INC-A",
        "value": "40030643.23",
        "weight": "0.00608640",
        "shared": true
      },
      {
        "name": "WATERS CORP",
        "value": "39746521.62",
        "weight": "0.00604320",
        "shared": true
      },
      {
        "name": "BLKR-LIQ T-INS",
        "value": "34195870.35",
        "weight": "0.00519926",
        "shared": false
      },
      {
        "name": "PROTAGONIST THERAPEUTICS INC",
        "value": "34107168.64",
        "weight": "0.00518577",
        "shared": true
      },
      {
        "name": "AGILENT TECHNOLOGIES INC",
        "value": "32922989.82",
        "weight": "0.00500573",
        "shared": true
      },
      {
        "name": "PFIZER INC",
        "value": "32754798.30",
        "weight": "0.00498016",
        "shared": true
      },
      {
        "name": "NUVALENT INC-A",
        "value": "32199989.95",
        "weight": "0.00489580",
        "shared": true
      },
      {
        "name": "COGENT BIOSCIENCES INC",
        "value": "31873278.15",
        "weight": "0.00484613",
        "shared": true
      },
      {
        "name": "GUARDANT HEALTH INC",
        "value": "31612843.50",
        "weight": "0.00480653",
        "shared": true
      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "30911549.90",
        "weight": "0.00469990",
        "shared": true
      },
      {
        "name": "MODERNA INC",
        "value": "30042002.43",
        "weight": "0.00456769",
        "shared": true
      },
      {
        "name": "GALDERMA GROUP A",
        "value": "28935096.50",
        "weight": "0.00439939",
        "shared": false
      },
      {
        "name": "CVS HEALTH CORP",
        "value": "28706631.80",
        "weight": "0.00436466",
        "shared": true
      },
      {
        "name": "ELEVANCE HEALTH INC",
        "value": "28353600.00",
        "weight": "0.00431098",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "LILLY ELI and CO",
        "value": "2542013908.14",
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      },
      {
        "name": "JOHNSON&JOHNSON",
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      },
      {
        "name": "ABBVIE INC",
        "value": "1231447346.64",
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      },
      {
        "name": "MERCK & CO",
        "value": "928949892.04",
        "weight": "0.04589070",
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      },
      {
        "name": "UNITEDHEALTH GRP",
        "value": "797784433.89",
        "weight": "0.03941104",
        "shared": true
      },
      {
        "name": "AMGEN INC",
        "value": "627679174.08",
        "weight": "0.03100774",
        "shared": true
      },
      {
        "name": "ABBOTT LABS",
        "value": "608240917.05",
        "weight": "0.03004748",
        "shared": true
      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "591053384.20",
        "weight": "0.02919840",
        "shared": true
      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "555131883.60",
        "weight": "0.02742386",
        "shared": true
      },
      {
        "name": "INTUITIVE SURGICAL INC",
        "value": "542165469.72",
        "weight": "0.02678331",
        "shared": true
      },
      {
        "name": "PFIZER INC",
        "value": "472187206.75",
        "weight": "0.02332634",
        "shared": true
      },
      {
        "name": "DANAHER CORP",
        "value": "407735637.36",
        "weight": "0.02014239",
        "shared": true
      },
      {
        "name": "STRYKER CORP",
        "value": "400456183.32",
        "weight": "0.01978278",
        "shared": true
      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "382618222.77",
        "weight": "0.01890158",
        "shared": true
      },
      {
        "name": "BRISTOL-MYERS SQUIBB CO",
        "value": "381310782.93",
        "weight": "0.01883699",
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      },
      {
        "name": "MEDTRONIC PLC",
        "value": "376263764.38",
        "weight": "0.01858766",
        "shared": false
      },
      {
        "name": "MCKESSON CORP",
        "value": "368890318.33",
        "weight": "0.01822341",
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      },
      {
        "name": "BOSTON SCIENTIFIC CORP",
        "value": "342047668.80",
        "weight": "0.01689737",
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      },
      {
        "name": "CVS HEALTH CORP",
        "value": "304389916.40",
        "weight": "0.01503705",
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      },
      {
        "name": "HCA HEALTHCARE INC",
        "value": "260608692.10",
        "weight": "0.01287423",
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      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "244582979.66",
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      },
      {
        "name": "THE CIGNA GROUP",
        "value": "232364344.28",
        "weight": "0.01147894",
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      },
      {
        "name": "ELEVANCE HEALTH INC",
        "value": "212833600.00",
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      },
      {
        "name": "CENCORA INC",
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      },
      {
        "name": "ZOETIS INC CL A",
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      },
      {
        "name": "CARDINAL HEALTH INC",
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      },
      {
        "name": "IDEXX LABS INC",
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      },
      {
        "name": "EDWARDS LIFESCIENCES CORP",
        "value": "152492698.51",
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      },
      {
        "name": "BECTON DICKINSON and CO",
        "value": "151946103.36",
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      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "131084586.64",
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      {
        "name": "GE HEALTHCARE TECHNOLOGIES INC WI",
        "value": "115584226.38",
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      },
      {
        "name": "RESMED INC",
        "value": "112338233.76",
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      },
      {
        "name": "AGILENT TECHNOLOGIES INC",
        "value": "103368179.04",
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      },
      {
        "name": "INSMED INC",
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      },
      {
        "name": "WATERS CORP",
        "value": "94316637.97",
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      },
      {
        "name": "IQVIA HOLDINGS INC",
        "value": "91308790.07",
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      {
        "name": "DEXCOM INC",
        "value": "86499438.55",
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      },
      {
        "name": "VEEVA SYSTEMS-A",
        "value": "85129535.19",
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      },
      {
        "name": "METTLER-TOLEDO INTL INC",
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      {
        "name": "BIOGEN INC",
        "value": "84482323.50",
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      {
        "name": "NATERA INC",
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      },
      {
        "name": "STERIS PLC",
        "value": "74662542.15",
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      },
      {
        "name": "LABCORP HOLDINGS INC",
        "value": "72172158.24",
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      },
      {
        "name": "QUEST DIAGNOSTICS INC",
        "value": "71202183.82",
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      },
      {
        "name": "HUMANA INC",
        "value": "68835242.56",
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      },
      {
        "name": "CENTENE CORP",
        "value": "66208187.76",
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      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "65038876.90",
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      },
      {
        "name": "TENET HEALTHCARE CORP",
        "value": "63536499.90",
        "weight": "0.00313874",
        "shared": false
      },
      {
        "name": "ILLUMINA INC",
        "value": "62081929.98",
        "weight": "0.00306689",
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      },
      {
        "name": "EXACT SCIENCES CORP",
        "value": "58792206.00",
        "weight": "0.00290437",
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      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000940400-26-014709",
      "as_of": "2026-02-27",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/844779/000094040026014709/0000940400-26-014709-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000052848-26-000418",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/52848/000005284826000418/0000052848-26-000418-index.htm"
    }
  ]
}