{
  "page": "compare",
  "query": {
    "a": "IDNA",
    "b": "FBT"
  },
  "retrieved_at": "2026-07-07T18:58:46+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": "iShares Genomics Immunology and Healthcare ETF",
    "ticker": "IDNA",
    "slug": "IDNA",
    "series_id": "S000065599",
    "html_url": "https://fundwatcher.app/funds/IDNA/"
  },
  "fund_b": {
    "name": "First Trust NYSE Arca Biotechnology Index Fund",
    "ticker": "FBT",
    "slug": "FBT",
    "series_id": "S000012478",
    "html_url": "https://fundwatcher.app/funds/FBT/"
  },
  "overlap": {
    "coverage_a_by_b": "0.2081098190944480688100581869",
    "coverage_b_by_a": "0.2081098190944480688100581868",
    "shared_count": 6,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
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      },
      {
        "name": "MODERNA INC",
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      },
      {
        "name": "Bayer Aktiengesellschaft",
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      },
      {
        "name": "REVOLUTION MEDICINES INC",
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      },
      {
        "name": "TAKEDA PHARMACEU",
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      },
      {
        "name": "BIONTECH SE ADR",
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      },
      {
        "name": "ROCHE HOLDINGS AG (GENUSSCHEINE)",
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      },
      {
        "name": "IPSEN",
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      },
      {
        "name": "MERCK & CO",
        "value": "5835598.67",
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      },
      {
        "name": "GSK PLC",
        "value": "5666936.44",
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      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
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      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
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      },
      {
        "name": "GENMAB AS",
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      },
      {
        "name": "INCYTE CORP",
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        "weight": "0.03096926",
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      {
        "name": "Sanofi SA",
        "value": "5027544.43",
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      {
        "name": "EXELIXIS INC",
        "value": "4920351.04",
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      },
      {
        "name": "ARCELLX INC",
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      },
      {
        "name": "IDEAYA BIOSCIENCES",
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      },
      {
        "name": "CARIS LIFE SCIENCES INC",
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      {
        "name": "TWIST BIOSCIENCE CORP",
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      {
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      {
        "name": "ONO PHARMA",
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      {
        "name": "ARCUS BIOSCIENCES INC",
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      {
        "name": "CRISPR Therapeutics A.G. Series A",
        "value": "2400128.36",
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      {
        "name": "NOVAVAX INC",
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      {
        "name": "NUVATION BIO INC",
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      {
        "name": "CORVUS PHARMACEUTICALS INC",
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      {
        "name": "IOVANCE BIOTHERAPEUTICS INC",
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      {
        "name": "AbCellera Biologics Inc COM",
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      {
        "name": "GENFLEET THERAPEUTICS SHANGHAI INC",
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      {
        "name": "JANUX THERAPEUTICS INC",
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      {
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      {
        "name": "VIR BIOTECHNOLOGY INC",
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        "name": "VALNEVA SE",
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      {
        "name": "ABCLON INC",
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      {
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      {
        "name": "PACIFIC BIOSCIENES OF CALI INC",
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      {
        "name": "SUNSHINE LAKE PHARMA CO LTD",
        "value": "904241.11",
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      {
        "name": "ALVOTECH SA",
        "value": "880228.92",
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        "name": "PERSONALIS INC",
        "value": "771863.12",
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      {
        "name": "INTELLIA THERAPEUTICS INC",
        "value": "761976.75",
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      {
        "name": "OCUGEN INC",
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      {
        "name": "VERASTEM INC",
        "value": "613111.00",
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      {
        "name": "GINKGO BIOWORKS HOLDINGS INC",
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      {
        "name": "SHANGHAI HENLIUS BIOTECH INC H",
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        "name": "DESIGN THERAPEUTICS INC",
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        "name": "XENCOR INC",
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        "name": "GUANGZHOU INNOGEN PHARMACEUTICAL GROUP CO LTD",
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        "name": "PRIME MEDICINE INC",
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      {
        "name": "UNITED THERAPEUTICS CORP DEL",
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        "name": "AMGEN INC",
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        "name": "CORCEPT THERAPEUTICS INC",
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        "name": "KRYSTAL BIOTECH INC",
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      {
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      {
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      {
        "name": "VERTEX PHARMACEUTICALS INC",
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      {
        "name": "BIOMARIN PHARMACEUTICAL INC",
        "value": "77280579.60",
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      {
        "name": "ARGENX SE SPONSORED ADR",
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      {
        "name": "SAREPTA THERAPEUTICS INC",
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        "name": "HALOZYME THERAPEUTICS INC",
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        "name": "BEONE MEDICINES LTD ADR",
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        "name": "BRUKER CORP",
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      {
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        "name": "DAIWA CAPITAL MARKETS AMERICA INC",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001004726-26-001857",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626001857/0001004726-26-001857-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000940400-26-021488",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1329377/000094040026021488/0000940400-26-021488-index.htm"
    }
  ]
}