{
  "page": "compare",
  "query": {
    "a": "IBRN",
    "b": "FBDIX"
  },
  "retrieved_at": "2026-07-07T16:20:31+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 Neuroscience and Healthcare ETF",
    "ticker": "IBRN",
    "slug": "IBRN",
    "series_id": "S000076483",
    "html_url": "https://fundwatcher.app/funds/IBRN/"
  },
  "fund_b": {
    "name": "Franklin Biotechnology Discovery Fund",
    "ticker": "FBDIX",
    "slug": "FBDIX",
    "series_id": "S000006882",
    "html_url": "https://fundwatcher.app/funds/FBDIX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1552895457854444034237385974",
    "coverage_b_by_a": "0.1552895457854444034237385974",
    "shared_count": 10,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "650402.75",
        "weight": "0.11737289",
        "shared": false
      },
      {
        "name": "PRAXIS PRECISION MEDICINES INC",
        "value": "245548.00",
        "weight": "0.04431205",
        "shared": true
      },
      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "239340.75",
        "weight": "0.04319188",
        "shared": false
      },
      {
        "name": "ALKERMES PLC",
        "value": "222589.52",
        "weight": "0.04016892",
        "shared": false
      },
      {
        "name": "BIOGEN INC",
        "value": "192302.41",
        "weight": "0.03470325",
        "shared": false
      },
      {
        "name": "SCHOLAR ROCK HOLDING CORP",
        "value": "190928.04",
        "weight": "0.03445523",
        "shared": false
      },
      {
        "name": "PTC THERAPEUTICS INC",
        "value": "189580.30",
        "weight": "0.03421201",
        "shared": true
      },
      {
        "name": "DENALI THERAPEUTICS INC",
        "value": "181268.12",
        "weight": "0.03271198",
        "shared": false
      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "180707.50",
        "weight": "0.03261081",
        "shared": true
      },
      {
        "name": "ACADIA PHARMACEUTICALS INC",
        "value": "177543.45",
        "weight": "0.03203982",
        "shared": false
      },
      {
        "name": "XENON PHARMACEUTICALS INC",
        "value": "176630.07",
        "weight": "0.03187499",
        "shared": true
      },
      {
        "name": "CATALYST PHARMACEUTICALS INC",
        "value": "172773.00",
        "weight": "0.03117894",
        "shared": false
      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "169666.82",
        "weight": "0.03061839",
        "shared": true
      },
      {
        "name": "SUPERNUS PHARMACEUTICALS INC",
        "value": "168222.88",
        "weight": "0.03035781",
        "shared": false
      },
      {
        "name": "CENTESSA PHARMACEUTICALS LTD ADR",
        "value": "151326.63",
        "weight": "0.02730869",
        "shared": true
      },
      {
        "name": "SK BIOPHARMS. CO LTD",
        "value": "146948.06",
        "weight": "0.02651852",
        "shared": false
      },
      {
        "name": "EDGEWISE THERAPEUTICS INC",
        "value": "137850.55",
        "weight": "0.02487677",
        "shared": false
      },
      {
        "name": "AVADEL PHARMACEU",
        "value": "129084.50",
        "weight": "0.02329483",
        "shared": false
      },
      {
        "name": "SAREPTA THERAPEUTICS INC",
        "value": "128874.24",
        "weight": "0.02325689",
        "shared": false
      },
      {
        "name": "DYNE THERAPEUTICS INC",
        "value": "120453.37",
        "weight": "0.02173724",
        "shared": true
      },
      {
        "name": "DIANTHUS THERAPEUTICS INC",
        "value": "120287.67",
        "weight": "0.02170734",
        "shared": true
      },
      {
        "name": "H LUNDBECK A/S",
        "value": "115013.11",
        "weight": "0.02075548",
        "shared": false
      },
      {
        "name": "AXOGEN INC",
        "value": "100542.25",
        "weight": "0.01814404",
        "shared": false
      },
      {
        "name": "BIOARCTIC AB",
        "value": "89203.82",
        "weight": "0.01609789",
        "shared": false
      },
      {
        "name": "BIOHAVEN LTD",
        "value": "82064.71",
        "weight": "0.01480955",
        "shared": false
      },
      {
        "name": "NEUREN PHARMACEU",
        "value": "80474.31",
        "weight": "0.01452254",
        "shared": false
      },
      {
        "name": "TAYSHA GENE THERAPIES INC",
        "value": "64610.26",
        "weight": "0.01165969",
        "shared": false
      },
      {
        "name": "TOBII DYNAVOX AB",
        "value": "60762.92",
        "weight": "0.01096539",
        "shared": false
      },
      {
        "name": "CAPRICOR THERAPEUTICS INC",
        "value": "56454.31",
        "weight": "0.01018785",
        "shared": false
      },
      {
        "name": "IDORSIA LTD",
        "value": "50594.14",
        "weight": "0.00913031",
        "shared": false
      },
      {
        "name": "ANNEXON INC",
        "value": "49214.88",
        "weight": "0.00888141",
        "shared": false
      },
      {
        "name": "RAPPORT THERAPEUTICS INC",
        "value": "48004.44",
        "weight": "0.00866297",
        "shared": false
      },
      {
        "name": "INTEGRA LIFESCIENCES HLDS CORP",
        "value": "47088.78",
        "weight": "0.00849773",
        "shared": false
      },
      {
        "name": "SANBIO CO LTD",
        "value": "44245.92",
        "weight": "0.00798470",
        "shared": false
      },
      {
        "name": "ZYLOX-TONBRIDGE MEDICAL TECHNOLOGY CO LTD",
        "value": "39505.05",
        "weight": "0.00712916",
        "shared": false
      },
      {
        "name": "Bright Minds Biosciences Inc COM NEW",
        "value": "38875.00",
        "weight": "0.00701546",
        "shared": false
      },
      {
        "name": "MEDINCELL SA",
        "value": "35240.49",
        "weight": "0.00635956",
        "shared": false
      },
      {
        "name": "FULCRUM THERAPEUTICS INC",
        "value": "33048.40",
        "weight": "0.00596398",
        "shared": false
      },
      {
        "name": "REGENXBIO INC",
        "value": "33033.60",
        "weight": "0.00596131",
        "shared": false
      },
      {
        "name": "MICROPORT NEUROTECH LTD",
        "value": "30114.54",
        "weight": "0.00543453",
        "shared": false
      },
      {
        "name": "CERIBELL INC",
        "value": "29224.98",
        "weight": "0.00527399",
        "shared": false
      },
      {
        "name": "ANAVEX LIFE SCIENCES CORP",
        "value": "27184.80",
        "weight": "0.00490582",
        "shared": false
      },
      {
        "name": "VANDA PHARMACEUTICALS INC",
        "value": "26518.18",
        "weight": "0.00478552",
        "shared": false
      },
      {
        "name": "BENITEC BIOPHARMA INC",
        "value": "25529.28",
        "weight": "0.00460706",
        "shared": true
      },
      {
        "name": "NEUROPACE INC",
        "value": "24722.42",
        "weight": "0.00446145",
        "shared": false
      },
      {
        "name": "PEIJIA MEDICAL LTD",
        "value": "24549.48",
        "weight": "0.00443024",
        "shared": false
      },
      {
        "name": "PROTHENA CORP PLC COMMON STOCK USD.01",
        "value": "24527.04",
        "weight": "0.00442620",
        "shared": false
      },
      {
        "name": "SOLID BIOSCIENCES INC",
        "value": "24011.82",
        "weight": "0.00433322",
        "shared": true
      },
      {
        "name": "ONCOLYS BIOPHARMA INC",
        "value": "20278.93",
        "weight": "0.00365957",
        "shared": false
      },
      {
        "name": "CLEARPOINT NEURO INC",
        "value": "20041.50",
        "weight": "0.00361673",
        "shared": false
      }
    ],
    "b_top": [
      {
        "name": "GILEAD SCIENCES INC",
        "value": "62977962.85",
        "weight": "0.05994834",
        "shared": false
      },
      {
        "name": "AMGEN INC",
        "value": "49045421.04",
        "weight": "0.04668604",
        "shared": false
      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "48000285.00",
        "weight": "0.04569118",
        "shared": false
      },
      {
        "name": "JAZZ PHARMA PLC",
        "value": "46562677.77",
        "weight": "0.04432273",
        "shared": false
      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "45242537.55",
        "weight": "0.04306610",
        "shared": false
      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "41152561.00",
        "weight": "0.03917287",
        "shared": true
      },
      {
        "name": "Franklin Institutional U.S. Government Money Market Fund",
        "value": "35318834.25",
        "weight": "0.03361978",
        "shared": false
      },
      {
        "name": "PRAXIS PRECISION MEDICINES INC",
        "value": "32874544.00",
        "weight": "0.03129308",
        "shared": true
      },
      {
        "name": "INSMED INC",
        "value": "29590858.71",
        "weight": "0.02816736",
        "shared": false
      },
      {
        "name": "Ascendis Pharma A/S",
        "value": "29334666.20",
        "weight": "0.02792349",
        "shared": false
      },
      {
        "name": "GUARDANT HEALTH INC",
        "value": "28394249.40",
        "weight": "0.02702831",
        "shared": false
      },
      {
        "name": "PTC THERAPEUTICS INC",
        "value": "27910374.31",
        "weight": "0.02656772",
        "shared": true
      },
      {
        "name": "TERNS PHARMACEUTICALS INC",
        "value": "26660753.20",
        "weight": "0.02537821",
        "shared": false
      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "22618918.48",
        "weight": "0.02153081",
        "shared": false
      },
      {
        "name": "MIRUM PHARMACEUTICALS INC",
        "value": "22211911.80",
        "weight": "0.02114338",
        "shared": false
      },
      {
        "name": "STRUCTURE THERAPEUTICS INC ADR",
        "value": "20127947.35",
        "weight": "0.01915967",
        "shared": false
      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "19625588.50",
        "weight": "0.01868148",
        "shared": false
      },
      {
        "name": "MINERALYS THERAPEUTICS INC",
        "value": "19251852.71",
        "weight": "0.01832572",
        "shared": false
      },
      {
        "name": "ASTRAZENECA PLC SPONS ADR",
        "value": "19023601.74",
        "weight": "0.01810845",
        "shared": false
      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "18405244.38",
        "weight": "0.01751984",
        "shared": true
      },
      {
        "name": "Abivax SA SPONSORED ADS",
        "value": "18294289.65",
        "weight": "0.01741422",
        "shared": false
      },
      {
        "name": "EYEPOINT PHARMACEUTICALS INC",
        "value": "17159786.80",
        "weight": "0.01633430",
        "shared": false
      },
      {
        "name": "IONIS PHARMACEUTICALS INC",
        "value": "16980418.00",
        "weight": "0.01616356",
        "shared": false
      },
      {
        "name": "BRIDGEBIO PHARMA INC",
        "value": "16061187.66",
        "weight": "0.01528855",
        "shared": false
      },
      {
        "name": "CENTESSA PHARMACEUTICALS LTD ADR",
        "value": "15090034.05",
        "weight": "0.01436411",
        "shared": true
      },
      {
        "name": "LILLY ELI and CO",
        "value": "14593737.65",
        "weight": "0.01389169",
        "shared": false
      },
      {
        "name": "OLEMA PHARMACEUTICALS INC",
        "value": "14409115.60",
        "weight": "0.01371595",
        "shared": false
      },
      {
        "name": "ARCUTIS BIOTHERAPEUTICS INC",
        "value": "12828365.87",
        "weight": "0.01221124",
        "shared": false
      },
      {
        "name": "SPYRE THERAPEUTICS INC",
        "value": "12673066.38",
        "weight": "0.01206342",
        "shared": false
      },
      {
        "name": "BENITEC BIOPHARMA INC",
        "value": "12120951.36",
        "weight": "0.01153786",
        "shared": true
      },
      {
        "name": "SYNDAX PHARMACEUTICALS INC",
        "value": "11775494.28",
        "weight": "0.01120902",
        "shared": false
      },
      {
        "name": "CG ONCOLOGY INC",
        "value": "11528086.05",
        "weight": "0.01097352",
        "shared": false
      },
      {
        "name": "ORUKA THERAPEUTICS INC",
        "value": "11501074.62",
        "weight": "0.01094780",
        "shared": false
      },
      {
        "name": "DIANTHUS THERAPEUTICS INC",
        "value": "10841533.57",
        "weight": "0.01031999",
        "shared": true
      },
      {
        "name": "CONTINEUM THERAPEUTICS INC CL A",
        "value": "9641485.46",
        "weight": "0.00917767",
        "shared": false
      },
      {
        "name": "DYNE THERAPEUTICS INC",
        "value": "9289060.48",
        "weight": "0.00884220",
        "shared": true
      },
      {
        "name": "ARS PHARMACEUTICALS INC",
        "value": "9009081.90",
        "weight": "0.00857569",
        "shared": false
      },
      {
        "name": "Franklin Institutional US Government Money Market Fund",
        "value": "8793092.76",
        "weight": "0.00837009",
        "shared": false
      },
      {
        "name": "NUVALENT INC-A",
        "value": "7771796.15",
        "weight": "0.00739793",
        "shared": false
      },
      {
        "name": "SOLENO THERAPEUTICS INC",
        "value": "6998755.68",
        "weight": "0.00666207",
        "shared": false
      },
      {
        "name": "ACHIEVE LIFE SCIENCES INC",
        "value": "6586350.76",
        "weight": "0.00626951",
        "shared": false
      },
      {
        "name": "BICARA THERAPEUTICS INC",
        "value": "6508353.60",
        "weight": "0.00619526",
        "shared": false
      },
      {
        "name": "AMYLYX PHARMACEUTICALS INC",
        "value": "6286428.22",
        "weight": "0.00598401",
        "shared": false
      },
      {
        "name": "ALTO NEUROSCIENCE INC",
        "value": "6273657.00",
        "weight": "0.00597186",
        "shared": false
      },
      {
        "name": "UNIQURE N.V.",
        "value": "6148940.80",
        "weight": "0.00585314",
        "shared": false
      },
      {
        "name": "NEWAMSTERDAM PHARMA COMPANY NV",
        "value": "5842033.12",
        "weight": "0.00556100",
        "shared": false
      },
      {
        "name": "TANGO THERAPEUTICS INC",
        "value": "5710773.24",
        "weight": "0.00543605",
        "shared": false
      },
      {
        "name": "INVENTIVA SA UNSPON ADR",
        "value": "5593280.00",
        "weight": "0.00532421",
        "shared": false
      },
      {
        "name": "APOGEE THERAPEUTICS INC",
        "value": "5420100.87",
        "weight": "0.00515936",
        "shared": false
      },
      {
        "name": "ORIC PHARMACEUTICALS INC",
        "value": "5381564.94",
        "weight": "0.00512268",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001004726-26-001911",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626001911/0001004726-26-001911-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "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"
    }
  ]
}