{
  "page": "compare",
  "query": {
    "a": "RYCFX",
    "b": "IBB"
  },
  "retrieved_at": "2026-07-07T18:23:37+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": "Biotechnology Fund",
    "ticker": "RYCFX",
    "slug": "RYCFX",
    "series_id": "S000003802",
    "html_url": "https://fundwatcher.app/funds/RYCFX/"
  },
  "fund_b": {
    "name": "iShares Biotechnology ETF",
    "ticker": "IBB",
    "slug": "IBB",
    "series_id": "S000004350",
    "html_url": "https://fundwatcher.app/funds/IBB/"
  },
  "overlap": {
    "coverage_a_by_b": "0.6074817570326085990634172366",
    "coverage_b_by_a": "0.6074817570326085990634172365",
    "shared_count": 61,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "ABBVIE INC",
        "value": "9987793.27",
        "weight": "0.07461999",
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      },
      {
        "name": "AMGEN INC",
        "value": "7069722.05",
        "weight": "0.05281873",
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      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "6695613.54",
        "weight": "0.05002372",
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      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "5411618.26",
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      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "4808911.36",
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      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
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      },
      {
        "name": "INSMED INC",
        "value": "3315695.04",
        "weight": "0.02477195",
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      },
      {
        "name": "BEONE MEDICINES LTD ADR",
        "value": "3087003.15",
        "weight": "0.02306337",
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      },
      {
        "name": "NATERA INC",
        "value": "2828858.55",
        "weight": "0.02113474",
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      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "2793528.78",
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      },
      {
        "name": "BIOGEN INC",
        "value": "2713833.99",
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      },
      {
        "name": "ROYALTY PHARMA PLC",
        "value": "2673799.83",
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      },
      {
        "name": "ILLUMINA INC",
        "value": "2348472.78",
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      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "2282943.75",
        "weight": "0.01705614",
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      },
      {
        "name": "MODERNA INC",
        "value": "2225954.40",
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      },
      {
        "name": "ASTRAZENECA PLC",
        "value": "2164292.28",
        "weight": "0.01616968",
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      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "2162270.25",
        "weight": "0.01615458",
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      },
      {
        "name": "INCYTE CORP",
        "value": "2100476.04",
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      },
      {
        "name": "VIATRIS INC",
        "value": "2027486.23",
        "weight": "0.01514759",
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      },
      {
        "name": "BRIDGEBIO PHARMA INC",
        "value": "1987494.64",
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      },
      {
        "name": "ALKERMES PLC",
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      },
      {
        "name": "JAZZ PHARMA PLC",
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      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "1913786.98",
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      },
      {
        "name": "GUARDANT HEALTH INC",
        "value": "1903376.22",
        "weight": "0.01422035",
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      },
      {
        "name": "ROIVANT SCIENCES LTD",
        "value": "1893904.40",
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      },
      {
        "name": "IONIS PHARMACEUTICALS INC",
        "value": "1867488.30",
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      },
      {
        "name": "EXELIXIS INC",
        "value": "1741634.23",
        "weight": "0.01301196",
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      },
      {
        "name": "MEDPACE HOLDINGS INC",
        "value": "1699872.60",
        "weight": "0.01269995",
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      },
      {
        "name": "BIOMARIN PHARMACEUTICAL INC",
        "value": "1679899.62",
        "weight": "0.01255073",
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      {
        "name": "APELLIS PHARMACEUTICALS INC",
        "value": "1653734.61",
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      {
        "name": "ARROWHEAD PHARMACEUTICALS INC",
        "value": "1653399.00",
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      },
      {
        "name": "CYTOKINETICS INC",
        "value": "1587969.63",
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      },
      {
        "name": "VAXCYTE INC",
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      {
        "name": "CRISPR THERAPEUTICS AG",
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      {
        "name": "HALOZYME THERAPEUTICS INC",
        "value": "1467876.56",
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      },
      {
        "name": "BIONTECH SE ADR",
        "value": "1436211.92",
        "weight": "0.01073011",
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      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "1381062.42",
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        "name": "Ascendis Pharma A/S",
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      {
        "name": "COGENT BIOSCIENCES INC",
        "value": "1337604.48",
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      },
      {
        "name": "ARCELLX INC",
        "value": "1337078.90",
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      },
      {
        "name": "TG THERAPEUTICS INC",
        "value": "1303054.50",
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      },
      {
        "name": "PTC THERAPEUTICS INC",
        "value": "1290041.55",
        "weight": "0.00963805",
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      },
      {
        "name": "SCHOLAR ROCK HOLDING CORP",
        "value": "1272408.28",
        "weight": "0.00950631",
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      },
      {
        "name": "MADRIGAL PHARMACEUTICALS INC",
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      {
        "name": "MIRUM PHARMACEUTICALS INC",
        "value": "1208330.40",
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      {
        "name": "PROTAGONIST THERAPEUTICS INC",
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      {
        "name": "AMICUS THERAPEUTICS INC",
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      {
        "name": "RHYTHM PHARMACEUTICALS INC",
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      {
        "name": "APOGEE THERAPEUTICS INC",
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      {
        "name": "KYMERA THERAPEUTICS INC",
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    ],
    "b_top": [
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
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        "name": "GILEAD SCIENCES INC",
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        "name": "VERTEX PHARMACEUTICALS INC",
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      {
        "name": "INSMED INC",
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      {
        "name": "ARGENX SE SPONSORED ADR",
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      },
      {
        "name": "BIOGEN INC",
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      {
        "name": "NATERA INC",
        "value": "196114593.78",
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      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "187090526.82",
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      {
        "name": "BEONE MEDICINES LTD ADR",
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      },
      {
        "name": "INCYTE CORP",
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      },
      {
        "name": "MODERNA INC",
        "value": "136776917.20",
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      {
        "name": "ILLUMINA INC",
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      {
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        "name": "ROIVANT SCIENCES LTD",
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      {
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      {
        "name": "GENMAB A/S -SP ADR DEPOSITARY RECEIPT",
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      {
        "name": "BRIDGEBIO PHARMA INC",
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      {
        "name": "MEDPACE HOLDINGS INC",
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      {
        "name": "MADRIGAL PHARMACEUTICALS INC",
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      {
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      {
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      {
        "name": "CHARLES RIVER LABS INTL INC",
        "value": "62473462.50",
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      {
        "name": "ARROWHEAD PHARMACEUTICALS INC",
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      {
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      },
      {
        "name": "BIO-TECHNE CORP",
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      },
      {
        "name": "CYTOKINETICS INC",
        "value": "59119424.52",
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      },
      {
        "name": "HALOZYME THERAPEUTICS INC",
        "value": "56131284.26",
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      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "53932253.76",
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      },
      {
        "name": "BIONTECH SE ADR",
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      },
      {
        "name": "KRYSTAL BIOTECH INC",
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      {
        "name": "PROTAGONIST THERAPEUTICS INC",
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      {
        "name": "REPLIGEN CORP",
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      },
      {
        "name": "KYMERA THERAPEUTICS INC",
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      {
        "name": "ALKERMES PLC",
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      {
        "name": "RHYTHM PHARMACEUTICALS INC",
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      {
        "name": "Abivax SA SPONSORED ADS",
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      {
        "name": "PTC THERAPEUTICS INC",
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        "name": "COGENT BIOSCIENCES INC",
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      {
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      {
        "name": "TERNS PHARMACEUTICALS INC",
        "value": "37634066.56",
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      },
      {
        "name": "NUVALENT INC-A",
        "value": "36419028.45",
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      },
      {
        "name": "MIRUM PHARMACEUTICALS INC",
        "value": "36275501.26",
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      },
      {
        "name": "TEMPUS AI INC-A",
        "value": "34996029.32",
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      },
      {
        "name": "XENON PHARMACEUTICALS INC",
        "value": "34796378.50",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000940400-26-023170",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/899148/000094040026023170/0000940400-26-023170-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0002071691-26-012466",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000207169126012466/0002071691-26-012466-index.htm"
    }
  ]
}