{
  "page": "compare",
  "query": {
    "a": "FTDZX",
    "b": "IBB"
  },
  "retrieved_at": "2026-07-07T18:25:07+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": "Franklin Biotechnology Discovery Fund",
    "ticker": "FTDZX",
    "slug": "FTDZX",
    "series_id": "S000006882",
    "html_url": "https://fundwatcher.app/funds/FTDZX/"
  },
  "fund_b": {
    "name": "iShares Biotechnology ETF",
    "ticker": "IBB",
    "slug": "IBB",
    "series_id": "S000004350",
    "html_url": "https://fundwatcher.app/funds/IBB/"
  },
  "overlap": {
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    "coverage_b_by_a": "0.4058744210634208966241665524",
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    "as_of": {
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      "b": "2026-03-31"
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    "a_top": [
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      },
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        "name": "VERTEX PHARMACEUTICALS INC",
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      },
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      },
      {
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      },
      {
        "name": "INSMED INC",
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        "name": "REVOLUTION MEDICINES INC",
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        "name": "MINERALYS THERAPEUTICS INC",
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        "name": "ASTRAZENECA PLC SPONS ADR",
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      {
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      {
        "name": "LILLY ELI and CO",
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      {
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        "name": "ALTO NEUROSCIENCE INC",
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      {
        "name": "INVENTIVA SA UNSPON ADR",
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      {
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        "name": "GENMAB A/S -SP ADR DEPOSITARY RECEIPT",
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        "name": "CHARLES RIVER LABS INTL INC",
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        "name": "CYTOKINETICS INC",
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      {
        "name": "HALOZYME THERAPEUTICS INC",
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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": "TERNS PHARMACEUTICALS INC",
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      {
        "name": "NUVALENT INC-A",
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        "name": "MIRUM PHARMACEUTICALS INC",
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      {
        "name": "TEMPUS AI INC-A",
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        "name": "XENON PHARMACEUTICALS INC",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0002071691-26-007599",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/872625/000207169126007599/0002071691-26-007599-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"
    }
  ]
}