{
  "page": "compare",
  "query": {
    "a": "MDEV",
    "b": "IYH"
  },
  "retrieved_at": "2026-07-07T17:11:17+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": "First Trust Indxx Medical Devices ETF",
    "ticker": "MDEV",
    "slug": "MDEV",
    "series_id": "S000071976",
    "html_url": "https://fundwatcher.app/funds/MDEV/"
  },
  "fund_b": {
    "name": "iShares U.S. Healthcare ETF",
    "ticker": "IYH",
    "slug": "IYH",
    "series_id": "S000004324",
    "html_url": "https://fundwatcher.app/funds/IYH/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1882349031310329277801910908",
    "coverage_b_by_a": "0.1882349031310329277801910908",
    "shared_count": 26,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-01-31"
    },
    "a_top": [
      {
        "name": "GLOBUS MEDICAL INC",
        "value": "63155.28",
        "weight": "0.03318149",
        "shared": true
      },
      {
        "name": "ALIGN TECHNOLOGY INC",
        "value": "56571.90",
        "weight": "0.02972261",
        "shared": true
      },
      {
        "name": "PENUMBRA INC",
        "value": "52210.83",
        "weight": "0.02743133",
        "shared": true
      },
      {
        "name": "MASIMO CORP",
        "value": "51048.69",
        "weight": "0.02682074",
        "shared": true
      },
      {
        "name": "HOYA CORP",
        "value": "50967.97",
        "weight": "0.02677833",
        "shared": false
      },
      {
        "name": "HOLOGIC INC",
        "value": "46261.08",
        "weight": "0.02430536",
        "shared": true
      },
      {
        "name": "WATERS CORP",
        "value": "46159.00",
        "weight": "0.02425172",
        "shared": true
      },
      {
        "name": "EDWARDS LIFESCIENCES CORP",
        "value": "44924.88",
        "weight": "0.02360332",
        "shared": true
      },
      {
        "name": "INTUITIVE SURGICAL INC",
        "value": "44255.04",
        "weight": "0.02325139",
        "shared": true
      },
      {
        "name": "WUXI APPTEC CO LTD H",
        "value": "44185.06",
        "weight": "0.02321462",
        "shared": false
      },
      {
        "name": "ALCON INC",
        "value": "43388.79",
        "weight": "0.02279627",
        "shared": false
      },
      {
        "name": "COOPER COS INC",
        "value": "43329.00",
        "weight": "0.02276485",
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      },
      {
        "name": "FISHER & PAYKEL",
        "value": "43193.49",
        "weight": "0.02269366",
        "shared": false
      },
      {
        "name": "METTLER-TOLEDO INTL INC",
        "value": "41619.60",
        "weight": "0.02186674",
        "shared": false
      },
      {
        "name": "GE HEALTHCARE TECHNOLOGIES INC WI",
        "value": "41569.12",
        "weight": "0.02184022",
        "shared": true
      },
      {
        "name": "TELEFLEX INC",
        "value": "41504.67",
        "weight": "0.02180636",
        "shared": true
      },
      {
        "name": "KONINKLIJKE PHIL",
        "value": "41302.07",
        "weight": "0.02169991",
        "shared": false
      },
      {
        "name": "REVVITY INC",
        "value": "41176.70",
        "weight": "0.02163405",
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      },
      {
        "name": "STRAUMANN HOLDG AG (REGD)",
        "value": "40070.66",
        "weight": "0.02105294",
        "shared": false
      },
      {
        "name": "DEXCOM INC",
        "value": "40003.60",
        "weight": "0.02101770",
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      },
      {
        "name": "ZIMMER BIOMET HO",
        "value": "39603.96",
        "weight": "0.02080774",
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      },
      {
        "name": "WEST PHARMACEUTICAL SVCS INC",
        "value": "39601.12",
        "weight": "0.02080624",
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      },
      {
        "name": "STERIS PLC",
        "value": "38918.88",
        "weight": "0.02044780",
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      },
      {
        "name": "DANAHER CORP",
        "value": "38868.00",
        "weight": "0.02042107",
        "shared": true
      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "38830.87",
        "weight": "0.02040156",
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      },
      {
        "name": "BIO RAD LABS CL A",
        "value": "38746.25",
        "weight": "0.02035710",
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      },
      {
        "name": "MEDTRONIC PLC",
        "value": "37606.10",
        "weight": "0.01975807",
        "shared": false
      },
      {
        "name": "STRYKER CORP",
        "value": "37459.26",
        "weight": "0.01968092",
        "shared": true
      },
      {
        "name": "Smith & Nephew PLC",
        "value": "37264.89",
        "weight": "0.01957880",
        "shared": false
      },
      {
        "name": "Sartorius Stedim Biotech S.A.",
        "value": "37199.77",
        "weight": "0.01954459",
        "shared": false
      },
      {
        "name": "MERIT MEDICAL SYSTEMS INC",
        "value": "36188.25",
        "weight": "0.01901314",
        "shared": false
      },
      {
        "name": "DEMANT A/S",
        "value": "35576.35",
        "weight": "0.01869165",
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      },
      {
        "name": "BECTON DICKINSON and CO",
        "value": "34905.06",
        "weight": "0.01833896",
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      },
      {
        "name": "SONOVA HOLDING A",
        "value": "34886.06",
        "weight": "0.01832897",
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      {
        "name": "AGILENT TECHNOLOGIES INC",
        "value": "34535.94",
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      },
      {
        "name": "Terumo Corporation",
        "value": "34392.98",
        "weight": "0.01806991",
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      },
      {
        "name": "RESMED INC",
        "value": "34120.96",
        "weight": "0.01792699",
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      },
      {
        "name": "BIOMERIEUX",
        "value": "33332.31",
        "weight": "0.01751264",
        "shared": false
      },
      {
        "name": "OLYMPUS CORP",
        "value": "32774.01",
        "weight": "0.01721931",
        "shared": false
      },
      {
        "name": "SIEMENS HEALTHINEERS AG COMMON STOCK",
        "value": "32341.02",
        "weight": "0.01699182",
        "shared": false
      },
      {
        "name": "COLOPLAST-B COMMON STOCK",
        "value": "32220.26",
        "weight": "0.01692837",
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      },
      {
        "name": "ABBOTT LABS",
        "value": "32135.71",
        "weight": "0.01688395",
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      },
      {
        "name": "BAXTER INTL INC",
        "value": "31735.20",
        "weight": "0.01667353",
        "shared": true
      },
      {
        "name": "SYSMEX CORPORATION",
        "value": "29075.44",
        "weight": "0.01527610",
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      },
      {
        "name": "INSULET CORP",
        "value": "27698.88",
        "weight": "0.01455286",
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      },
      {
        "name": "BOSTON SCIENTIFIC CORP",
        "value": "27233.50",
        "weight": "0.01430835",
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      },
      {
        "name": "AMPLIFON SPA",
        "value": "26732.60",
        "weight": "0.01404518",
        "shared": false
      },
      {
        "name": "COCHLEAR LTD",
        "value": "26240.57",
        "weight": "0.01378667",
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      },
      {
        "name": "CARL ZEISS ME-BR",
        "value": "24057.90",
        "weight": "0.01263991",
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      },
      {
        "name": "DREY-GVT CSH-I",
        "value": "2149.18",
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      }
    ],
    "b_top": [
      {
        "name": "LILLY ELI and CO",
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      },
      {
        "name": "JOHNSON&JOHNSON",
        "value": "328348298.25",
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      },
      {
        "name": "ABBVIE INC",
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      },
      {
        "name": "MERCK & CO",
        "value": "166819653.83",
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      },
      {
        "name": "UNITEDHEALTH GRP",
        "value": "156768796.38",
        "weight": "0.04489808",
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      },
      {
        "name": "THERMO FISHER SCIENTIFIC INC",
        "value": "131195767.23",
        "weight": "0.03757405",
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      },
      {
        "name": "ABBOTT LABS",
        "value": "113635931.00",
        "weight": "0.03254497",
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      },
      {
        "name": "AMGEN INC",
        "value": "110407410.96",
        "weight": "0.03162033",
        "shared": false
      },
      {
        "name": "INTUITIVE SURGICAL INC",
        "value": "106863882.58",
        "weight": "0.03060548",
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      },
      {
        "name": "GILEAD SCIENCES INC",
        "value": "106144532.00",
        "weight": "0.03039946",
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      },
      {
        "name": "PFIZER INC",
        "value": "90186443.40",
        "weight": "0.02582911",
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      },
      {
        "name": "BOSTON SCIENTIFIC CORP",
        "value": "82892458.98",
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      },
      {
        "name": "DANAHER CORP",
        "value": "82755742.30",
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      {
        "name": "MEDTRONIC PLC",
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      {
        "name": "STRYKER CORP",
        "value": "76376226.08",
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      },
      {
        "name": "VERTEX PHARMACEUTICALS INC",
        "value": "72555849.30",
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      {
        "name": "BRISTOL-MYERS SQUIBB CO",
        "value": "67360666.35",
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      {
        "name": "HCA HEALTHCARE INC",
        "value": "47516971.59",
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      {
        "name": "ELEVANCE HEALTH INC",
        "value": "46145572.06",
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      {
        "name": "REGENERON PHARMACEUTICALS INC",
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      },
      {
        "name": "THE CIGNA GROUP",
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      },
      {
        "name": "BECTON DICKINSON and CO",
        "value": "34953997.88",
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      },
      {
        "name": "ZOETIS INC CL A",
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      },
      {
        "name": "IDEXX LABS INC",
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      },
      {
        "name": "CARDINAL HEALTH INC",
        "value": "30800254.56",
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      {
        "name": "EDWARDS LIFESCIENCES CORP",
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      {
        "name": "ALNYLAM PHARMACEUTICALS INC",
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      {
        "name": "IQVIA HOLDINGS INC",
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      {
        "name": "AGILENT TECHNOLOGIES INC",
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      },
      {
        "name": "RESMED INC",
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      },
      {
        "name": "GE HEALTHCARE TECHNOLOGIES INC WI",
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      },
      {
        "name": "INSMED INC",
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      {
        "name": "VEEVA SYSTEMS-A",
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      {
        "name": "NATERA INC",
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      {
        "name": "DEXCOM INC",
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      {
        "name": "BIOGEN INC",
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      {
        "name": "STERIS PLC",
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      {
        "name": "HUMANA INC",
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      {
        "name": "LABCORP HOLDINGS INC",
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      {
        "name": "ILLUMINA INC",
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      {
        "name": "WATERS CORP",
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      {
        "name": "CENTENE CORP",
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      {
        "name": "QUEST DIAGNOSTICS INC",
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      {
        "name": "UNITED THERAPEUTICS CORP DEL",
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      {
        "name": "EXACT SCIENCES CORP",
        "value": "11452050.68",
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      },
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
        "value": "11106506.41",
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      },
      {
        "name": "INSULET CORP",
        "value": "10774717.20",
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      },
      {
        "name": "ZIMMER BIOMET HO",
        "value": "10344351.35",
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      },
      {
        "name": "REVOLUTION MEDICINES INC",
        "value": "10096760.80",
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      },
      {
        "name": "HOLOGIC INC",
        "value": "10045040.87",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000940400-26-020383",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1552740/000094040026020383/0000940400-26-020383-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001004726-26-001906",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626001906/0001004726-26-001906-index.htm"
    }
  ]
}