{
  "page": "compare",
  "query": {
    "a": "PDFDX",
    "b": "FBT"
  },
  "retrieved_at": "2026-07-07T17:27:16+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": "Perkins Discovery Fund",
    "ticker": "PDFDX",
    "slug": "PDFDX",
    "series_id": "S000038882",
    "html_url": "https://fundwatcher.app/funds/PDFDX/"
  },
  "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": "0.07752068452040252393439739391",
    "coverage_b_by_a": "0.07752068452040252393439739391",
    "shared_count": 3,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "AXOGEN INC",
        "value": "662600.00",
        "weight": "0.11429290",
        "shared": false
      },
      {
        "name": "NATERA INC",
        "value": "649967.50",
        "weight": "0.11211390",
        "shared": true
      },
      {
        "name": "VERACYTE INC",
        "value": "450940.00",
        "weight": "0.07778334",
        "shared": true
      },
      {
        "name": "ANI PHARMACEUTICALS INC",
        "value": "442175.00",
        "weight": "0.07627145",
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      },
      {
        "name": "SKYWATER TECHNOLOGY INC",
        "value": "397445.00",
        "weight": "0.06855590",
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      },
      {
        "name": "EPLUS INC",
        "value": "376250.00",
        "weight": "0.06489995",
        "shared": false
      },
      {
        "name": "DIGI INTL INC",
        "value": "289200.00",
        "weight": "0.04988456",
        "shared": false
      },
      {
        "name": "BUTTERFLY NETWORK INC A",
        "value": "244420.00",
        "weight": "0.04216038",
        "shared": false
      },
      {
        "name": "BIOLIFE SOLUTIONS INC",
        "value": "238500.00",
        "weight": "0.04113923",
        "shared": false
      },
      {
        "name": "MAGNITE INC",
        "value": "237600.00",
        "weight": "0.04098399",
        "shared": false
      },
      {
        "name": "ASURE SOFTWARE INC",
        "value": "202100.00",
        "weight": "0.03486054",
        "shared": false
      },
      {
        "name": "ATRICURE INC",
        "value": "199710.00",
        "weight": "0.03444829",
        "shared": false
      },
      {
        "name": "VERICEL CORP",
        "value": "193020.00",
        "weight": "0.03329432",
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      },
      {
        "name": "TACTILE SYSTEMS TECHNOLOGY INC",
        "value": "169845.00",
        "weight": "0.02929683",
        "shared": false
      },
      {
        "name": "NEOGENOMICS INC",
        "value": "163240.00",
        "weight": "0.02815752",
        "shared": true
      },
      {
        "name": "CRYOPORT INC",
        "value": "124200.00",
        "weight": "0.02142345",
        "shared": false
      },
      {
        "name": "PERION NETWORK LTD COMMON STOCK",
        "value": "114885.00",
        "weight": "0.01981669",
        "shared": false
      },
      {
        "name": "BACKBLAZE INC-A",
        "value": "103500.00",
        "weight": "0.01785288",
        "shared": false
      },
      {
        "name": "OPTIMIZERX CORP",
        "value": "87920.00",
        "weight": "0.01516546",
        "shared": false
      },
      {
        "name": "INUVO INC",
        "value": "77625.00",
        "weight": "0.01338966",
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      },
      {
        "name": "MDxHealth SA",
        "value": "74750.00",
        "weight": "0.01289374",
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      },
      {
        "name": "TRISALUS LIFE SCIENCES INC",
        "value": "70000.00",
        "weight": "0.01207441",
        "shared": false
      },
      {
        "name": "OWLET INC",
        "value": "53970.00",
        "weight": "0.00930937",
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      },
      {
        "name": "MONEYMKT",
        "value": "49467.90",
        "weight": "0.00853279",
        "shared": false
      },
      {
        "name": "EXAGEN INC",
        "value": "45000.00",
        "weight": "0.00776212",
        "shared": false
      },
      {
        "name": "TELA BIO INC",
        "value": "39680.00",
        "weight": "0.00684446",
        "shared": false
      },
      {
        "name": "ELUTIA INC",
        "value": "39375.00",
        "weight": "0.00679185",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "MODERNA INC",
        "value": "119445481.20",
        "weight": "0.05258157",
        "shared": false
      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "98938120.02",
        "weight": "0.04355394",
        "shared": false
      },
      {
        "name": "ALKERMES PLC",
        "value": "96146103.04",
        "weight": "0.04232486",
        "shared": false
      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "92819305.04",
        "weight": "0.04086035",
        "shared": false
      },
      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "88207819.56",
        "weight": "0.03883031",
        "shared": false
      },
      {
        "name": "AMGEN INC",
        "value": "87006523.55",
        "weight": "0.03830149",
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      },
      {
        "name": "CORCEPT THERAPEUTICS INC",
        "value": "86691734.06",
        "weight": "0.03816291",
        "shared": false
      },
      {
        "name": "KRYSTAL BIOTECH INC",
        "value": "79692753.28",
        "weight": "0.03508186",
        "shared": false
      },
      {
        "name": "BIOGEN INC",
        "value": "78804950.49",
        "weight": "0.03469104",
        "shared": false
      },
      {
        "name": "EXELIXIS INC",
        "value": "78543170.30",
        "weight": "0.03457580",
        "shared": false
      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "78243811.24",
        "weight": "0.03444402",
        "shared": false
      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "78229027.36",
        "weight": "0.03443751",
        "shared": false
      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "77623834.36",
        "weight": "0.03417110",
        "shared": false
      },
      {
        "name": "BIOMARIN PHARMACEUTICAL INC",
        "value": "77280579.60",
        "weight": "0.03401999",
        "shared": false
      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "74722831.25",
        "weight": "0.03289403",
        "shared": false
      },
      {
        "name": "SAREPTA THERAPEUTICS INC",
        "value": "73643325.44",
        "weight": "0.03241882",
        "shared": false
      },
      {
        "name": "HALOZYME THERAPEUTICS INC",
        "value": "71923043.09",
        "weight": "0.03166153",
        "shared": false
      },
      {
        "name": "BIONTECH SE ADR",
        "value": "71789353.68",
        "weight": "0.03160268",
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      },
      {
        "name": "INCYTE CORP",
        "value": "71025869.72",
        "weight": "0.03126658",
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      },
      {
        "name": "BEONE MEDICINES LTD ADR",
        "value": "70878423.84",
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      },
      {
        "name": "ILLUMINA INC",
        "value": "70471563.06",
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      },
      {
        "name": "NATERA INC",
        "value": "68836158.02",
        "weight": "0.03030264",
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      },
      {
        "name": "ACADIA PHARMACEUTICALS INC",
        "value": "67035878.70",
        "weight": "0.02951013",
        "shared": false
      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "66998528.04",
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      },
      {
        "name": "BIO-TECHNE CORP",
        "value": "64153069.50",
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      },
      {
        "name": "GENMAB A/S -SP ADR DEPOSITARY RECEIPT",
        "value": "63158329.77",
        "weight": "0.02780318",
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      },
      {
        "name": "VERACYTE INC",
        "value": "61789763.61",
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      },
      {
        "name": "REPLIGEN CORP",
        "value": "56958076.06",
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      },
      {
        "name": "BRUKER CORP",
        "value": "53490938.76",
        "weight": "0.02354746",
        "shared": false
      },
      {
        "name": "NEOGENOMICS INC",
        "value": "45471822.76",
        "weight": "0.02001733",
        "shared": true
      },
      {
        "name": "DREY-GVT CSH-I",
        "value": "1413994.11",
        "weight": "0.00062246",
        "shared": false
      },
      {
        "name": "DAIWA CAPITAL MARKETS AMERICA INC",
        "value": "188488.00",
        "weight": "0.00008298",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001396092-26-000318",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1396092/000139609226000318/0001396092-26-000318-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"
    }
  ]
}