{
  "page": "compare",
  "query": {
    "a": "BIPIX",
    "b": "IBB"
  },
  "retrieved_at": "2026-07-07T19:45:49+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 ULTRASECTOR PROFUND",
    "ticker": "BIPIX",
    "slug": "BIPIX",
    "series_id": "S000003107",
    "html_url": "https://fundwatcher.app/funds/BIPIX/"
  },
  "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": "0.3133952418781076103047804028",
    "coverage_b_by_a": "0.3133952418781076103047804028",
    "shared_count": 116,
    "as_of": {
      "a": "2026-04-30",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "US ULTRA BOND CBT Sep25",
        "value": "54518991.93",
        "weight": "0.28658549",
        "shared": true
      },
      {
        "name": "Invesco Government & Agency Portfolio, Institutional Class",
        "value": "3746290.00",
        "weight": "0.01969281",
        "shared": false
      },
      {
        "name": "APELLIS PHARMACEUTICALS INC",
        "value": "2461791.15",
        "weight": "0.01294069",
        "shared": true
      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "2174338.44",
        "weight": "0.01142967",
        "shared": true
      },
      {
        "name": "TRAVERE THERAPEUTICS INC",
        "value": "2138727.24",
        "weight": "0.01124247",
        "shared": true
      },
      {
        "name": "ARROWHEAD PHARMACEUTICALS INC",
        "value": "1900192.80",
        "weight": "0.00998859",
        "shared": true
      },
      {
        "name": "TWIST BIOSCIENCE CORP",
        "value": "1874082.35",
        "weight": "0.00985133",
        "shared": true
      },
      {
        "name": "SUMMIT THERAPEUTICS INC",
        "value": "1852019.46",
        "weight": "0.00973536",
        "shared": true
      },
      {
        "name": "ALKERMES PLC",
        "value": "1823879.55",
        "weight": "0.00958744",
        "shared": false
      },
      {
        "name": "TG THERAPEUTICS INC",
        "value": "1809425.70",
        "weight": "0.00951146",
        "shared": false
      },
      {
        "name": "MADRIGAL PHARMACEUTICALS INC",
        "value": "1801551.98",
        "weight": "0.00947007",
        "shared": true
      },
      {
        "name": "BEAM THERAPEUTICS INC",
        "value": "1747341.63",
        "weight": "0.00918511",
        "shared": true
      },
      {
        "name": "APOGEE THERAPEUTICS INC",
        "value": "1667663.91",
        "weight": "0.00876627",
        "shared": true
      },
      {
        "name": "SCHOLAR ROCK HOLDING CORP",
        "value": "1621841.56",
        "weight": "0.00852540",
        "shared": true
      },
      {
        "name": "PRAXIS PRECISION MEDICINES INC",
        "value": "1612960.97",
        "weight": "0.00847872",
        "shared": true
      },
      {
        "name": "EXELIXIS INC",
        "value": "1600026.48",
        "weight": "0.00841073",
        "shared": true
      },
      {
        "name": "MIRUM PHARMACEUTICALS INC",
        "value": "1593548.56",
        "weight": "0.00837668",
        "shared": true
      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "1575783.30",
        "weight": "0.00828329",
        "shared": true
      },
      {
        "name": "NATERA INC",
        "value": "1575474.72",
        "weight": "0.00828167",
        "shared": true
      },
      {
        "name": "CRISPR Therapeutics A.G. Series A",
        "value": "1575015.28",
        "weight": "0.00827925",
        "shared": false
      },
      {
        "name": "CELCUITY INC",
        "value": "1575001.65",
        "weight": "0.00827918",
        "shared": false
      },
      {
        "name": "KRYSTAL BIOTECH INC",
        "value": "1545235.92",
        "weight": "0.00812271",
        "shared": true
      },
      {
        "name": "PROTAGONIST THERAPEUTICS INC",
        "value": "1541259.81",
        "weight": "0.00810181",
        "shared": true
      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "1527240.33",
        "weight": "0.00802812",
        "shared": true
      },
      {
        "name": "INCYTE CORP",
        "value": "1512220.71",
        "weight": "0.00794917",
        "shared": true
      },
      {
        "name": "CG ONCOLOGY INC",
        "value": "1511327.30",
        "weight": "0.00794447",
        "shared": true
      },
      {
        "name": "CYTOKINETICS INC",
        "value": "1510523.61",
        "weight": "0.00794024",
        "shared": true
      },
      {
        "name": "NUVALENT INC-A",
        "value": "1505904.76",
        "weight": "0.00791597",
        "shared": true
      },
      {
        "name": "IONIS PHARMACEUTICALS INC",
        "value": "1501853.64",
        "weight": "0.00789467",
        "shared": true
      },
      {
        "name": "BRIDGEBIO PHARMA INC",
        "value": "1496581.06",
        "weight": "0.00786695",
        "shared": true
      },
      {
        "name": "VAXCYTE INC",
        "value": "1494937.08",
        "weight": "0.00785831",
        "shared": true
      },
      {
        "name": "KYMERA THERAPEUTICS INC",
        "value": "1494201.17",
        "weight": "0.00785444",
        "shared": true
      },
      {
        "name": "BIOGEN INC",
        "value": "1493040.64",
        "weight": "0.00784834",
        "shared": true
      },
      {
        "name": "COGENT BIOSCIENCES INC",
        "value": "1490402.97",
        "weight": "0.00783448",
        "shared": true
      },
      {
        "name": "PTC THERAPEUTICS INC",
        "value": "1488507.74",
        "weight": "0.00782452",
        "shared": true
      },
      {
        "name": "INSMED INC",
        "value": "1469364.74",
        "weight": "0.00772389",
        "shared": true
      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "1451198.61",
        "weight": "0.00762840",
        "shared": true
      },
      {
        "name": "ROIVANT SCIENCES",
        "value": "1449152.82",
        "weight": "0.00761764",
        "shared": false
      },
      {
        "name": "HALOZYME THERAPEUTICS INC",
        "value": "1438779.66",
        "weight": "0.00756311",
        "shared": true
      },
      {
        "name": "ARCUTIS BIOTHERAPEUTICS INC",
        "value": "1415653.74",
        "weight": "0.00744155",
        "shared": true
      },
      {
        "name": "SPYRE THERAPEUTICS INC",
        "value": "1411646.45",
        "weight": "0.00742049",
        "shared": true
      },
      {
        "name": "SOLENO THERAPEUTICS INC",
        "value": "1400944.86",
        "weight": "0.00736423",
        "shared": false
      },
      {
        "name": "ABBVIE INC",
        "value": "1394500.68",
        "weight": "0.00733036",
        "shared": false
      },
      {
        "name": "AMGEN INC",
        "value": "1377728.75",
        "weight": "0.00724219",
        "shared": true
      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "1371696.40",
        "weight": "0.00721048",
        "shared": true
      },
      {
        "name": "ULTRAGENYX PHARMA INC",
        "value": "1360591.83",
        "weight": "0.00715211",
        "shared": true
      },
      {
        "name": "ACADIA PHARMACEUTICALS INC",
        "value": "1358629.10",
        "weight": "0.00714179",
        "shared": true
      },
      {
        "name": "RHYTHM PHARMACEUTICALS INC",
        "value": "1357979.76",
        "weight": "0.00713838",
        "shared": true
      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "1346474.44",
        "weight": "0.00707790",
        "shared": true
      },
      {
        "name": "BIOMARIN PHARMACEUTICAL INC",
        "value": "1342844.19",
        "weight": "0.00705882",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "784812698.34",
        "weight": "0.08809101",
        "shared": false
      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "629354084.59",
        "weight": "0.07064162",
        "shared": true
      },
      {
        "name": "AMGEN INC",
        "value": "609808123.80",
        "weight": "0.06844769",
        "shared": true
      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "604629895.82",
        "weight": "0.06786646",
        "shared": true
      },
      {
        "name": "REGENERON PHARMACEUTICALS INC",
        "value": "585840372.48",
        "weight": "0.06575744",
        "shared": true
      },
      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
        "value": "324134148.54",
        "weight": "0.03638232",
        "shared": true
      },
      {
        "name": "INSMED INC",
        "value": "259651282.24",
        "weight": "0.02914446",
        "shared": true
      },
      {
        "name": "ARGENX SE SPONSORED ADR",
        "value": "249660060.75",
        "weight": "0.02802300",
        "shared": false
      },
      {
        "name": "BIOGEN INC",
        "value": "200021463.18",
        "weight": "0.02245134",
        "shared": true
      },
      {
        "name": "NATERA INC",
        "value": "196114593.78",
        "weight": "0.02201281",
        "shared": true
      },
      {
        "name": "UNITED THERAPEUTICS CORP DEL",
        "value": "187090526.82",
        "weight": "0.02099991",
        "shared": true
      },
      {
        "name": "BEONE MEDICINES LTD ADR",
        "value": "157139596.71",
        "weight": "0.01763808",
        "shared": false
      },
      {
        "name": "INCYTE CORP",
        "value": "138160912.76",
        "weight": "0.01550782",
        "shared": true
      },
      {
        "name": "MODERNA INC",
        "value": "136776917.20",
        "weight": "0.01535247",
        "shared": true
      },
      {
        "name": "ILLUMINA INC",
        "value": "136484688.66",
        "weight": "0.01531967",
        "shared": false
      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "124860442.00",
        "weight": "0.01401491",
        "shared": true
      },
      {
        "name": "ROIVANT SCIENCES LTD",
        "value": "100898828.90",
        "weight": "0.01132535",
        "shared": false
      },
      {
        "name": "NEUROCRINE BIOSCIENCES INC",
        "value": "95841113.48",
        "weight": "0.01075765",
        "shared": true
      },
      {
        "name": "GENMAB A/S -SP ADR DEPOSITARY RECEIPT",
        "value": "95383279.34",
        "weight": "0.01070626",
        "shared": false
      },
      {
        "name": "BRIDGEBIO PHARMA INC",
        "value": "91984896.62",
        "weight": "0.01032481",
        "shared": true
      },
      {
        "name": "IONIS PHARMACEUTICALS INC",
        "value": "90524674.41",
        "weight": "0.01016091",
        "shared": true
      },
      {
        "name": "MEDPACE HOLDINGS INC",
        "value": "81594845.18",
        "weight": "0.00915858",
        "shared": false
      },
      {
        "name": "MADRIGAL PHARMACEUTICALS INC",
        "value": "81316353.27",
        "weight": "0.00912732",
        "shared": true
      },
      {
        "name": "EXELIXIS INC",
        "value": "80261172.14",
        "weight": "0.00900889",
        "shared": true
      },
      {
        "name": "BIOMARIN PHARMACEUTICAL INC",
        "value": "79782521.70",
        "weight": "0.00895516",
        "shared": true
      },
      {
        "name": "Ascendis Pharma A/S",
        "value": "77756306.04",
        "weight": "0.00872773",
        "shared": false
      },
      {
        "name": "PRAXIS PRECISION MEDICINES INC",
        "value": "62858302.43",
        "weight": "0.00705551",
        "shared": true
      },
      {
        "name": "CHARLES RIVER LABS INTL INC",
        "value": "62473462.50",
        "weight": "0.00701231",
        "shared": false
      },
      {
        "name": "ARROWHEAD PHARMACEUTICALS INC",
        "value": "61143472.50",
        "weight": "0.00686303",
        "shared": true
      },
      {
        "name": "VAXCYTE INC",
        "value": "60765336.45",
        "weight": "0.00682058",
        "shared": true
      },
      {
        "name": "BIO-TECHNE CORP",
        "value": "60200907.00",
        "weight": "0.00675723",
        "shared": false
      },
      {
        "name": "CYTOKINETICS INC",
        "value": "59119424.52",
        "weight": "0.00663584",
        "shared": true
      },
      {
        "name": "HALOZYME THERAPEUTICS INC",
        "value": "56131284.26",
        "weight": "0.00630044",
        "shared": true
      },
      {
        "name": "AXSOME THERAPEUTICS INC",
        "value": "53932253.76",
        "weight": "0.00605361",
        "shared": false
      },
      {
        "name": "BIONTECH SE ADR",
        "value": "53284093.28",
        "weight": "0.00598085",
        "shared": false
      },
      {
        "name": "KRYSTAL BIOTECH INC",
        "value": "48813697.12",
        "weight": "0.00547908",
        "shared": true
      },
      {
        "name": "PROTAGONIST THERAPEUTICS INC",
        "value": "47118753.80",
        "weight": "0.00528883",
        "shared": true
      },
      {
        "name": "REPLIGEN CORP",
        "value": "46762286.72",
        "weight": "0.00524882",
        "shared": false
      },
      {
        "name": "KYMERA THERAPEUTICS INC",
        "value": "43426156.65",
        "weight": "0.00487435",
        "shared": true
      },
      {
        "name": "ALKERMES PLC",
        "value": "43021168.32",
        "weight": "0.00482890",
        "shared": false
      },
      {
        "name": "RHYTHM PHARMACEUTICALS INC",
        "value": "41270656.83",
        "weight": "0.00463241",
        "shared": true
      },
      {
        "name": "Abivax SA SPONSORED ADS",
        "value": "40916782.35",
        "weight": "0.00459269",
        "shared": false
      },
      {
        "name": "PTC THERAPEUTICS INC",
        "value": "40411445.76",
        "weight": "0.00453597",
        "shared": true
      },
      {
        "name": "COGENT BIOSCIENCES INC",
        "value": "38851652.04",
        "weight": "0.00436089",
        "shared": true
      },
      {
        "name": "ARCELLX INC",
        "value": "38558163.48",
        "weight": "0.00432795",
        "shared": false
      },
      {
        "name": "TERNS PHARMACEUTICALS INC",
        "value": "37634066.56",
        "weight": "0.00422422",
        "shared": false
      },
      {
        "name": "NUVALENT INC-A",
        "value": "36419028.45",
        "weight": "0.00408784",
        "shared": true
      },
      {
        "name": "MIRUM PHARMACEUTICALS INC",
        "value": "36275501.26",
        "weight": "0.00407173",
        "shared": true
      },
      {
        "name": "TEMPUS AI INC-A",
        "value": "34996029.32",
        "weight": "0.00392812",
        "shared": false
      },
      {
        "name": "XENON PHARMACEUTICALS INC",
        "value": "34796378.50",
        "weight": "0.00390571",
        "shared": false
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000910472-26-009384",
      "as_of": "2026-04-30",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1039803/000091047226009384/0000910472-26-009384-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"
    }
  ]
}