{
  "page": "compare",
  "query": {
    "a": "ITA",
    "b": "FSDAX"
  },
  "retrieved_at": "2026-07-07T16:20:16+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": "iShares U.S. Aerospace & Defense ETF",
    "ticker": "ITA",
    "slug": "ITA",
    "series_id": "S000009423",
    "html_url": "https://fundwatcher.app/funds/ITA/"
  },
  "fund_b": {
    "name": "Select Defense and Aerospace Portfolio",
    "ticker": "FSDAX",
    "slug": "FSDAX",
    "series_id": "S000007456",
    "html_url": "https://fundwatcher.app/funds/FSDAX/"
  },
  "overlap": {
    "coverage_a_by_b": "0.7409684568574729928283588333",
    "coverage_b_by_a": "0.7409684568574729928283588332",
    "shared_count": 24,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-02-28"
    },
    "a_top": [
      {
        "name": "GENERAL ELECTRIC CO",
        "value": "2566576210.05",
        "weight": "0.18774755",
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      },
      {
        "name": "RTX CORP",
        "value": "2232889837.50",
        "weight": "0.16333807",
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      },
      {
        "name": "BOEING CO/THE",
        "value": "1202160306.88",
        "weight": "0.08793920",
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      },
      {
        "name": "GENERAL DYNAMICS CORPORATION",
        "value": "643386826.42",
        "weight": "0.04706437",
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      },
      {
        "name": "L3HARRIS TECHNOLOGIES INC",
        "value": "628516424.25",
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      },
      {
        "name": "LOCKHEED MARTIN CORP",
        "value": "617274990.41",
        "weight": "0.04515427",
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      },
      {
        "name": "NORTHROP GRUMMAN CORP",
        "value": "617227985.92",
        "weight": "0.04515083",
        "shared": true
      },
      {
        "name": "TRANSDIGM GROUP INC",
        "value": "610926061.68",
        "weight": "0.04468984",
        "shared": true
      },
      {
        "name": "HOWMET AEROSPACE INC",
        "value": "607459373.76",
        "weight": "0.04443625",
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      },
      {
        "name": "AXON ENTERPRISE INC",
        "value": "381217882.22",
        "weight": "0.02788646",
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      },
      {
        "name": "ROCKET LAB CORP",
        "value": "343393523.46",
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      },
      {
        "name": "FTAI AVIATION LT",
        "value": "285905935.00",
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      },
      {
        "name": "CURTISS WRIGHT CORPORATION",
        "value": "285673988.16",
        "weight": "0.02089733",
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      },
      {
        "name": "WOODWARD INC",
        "value": "242729532.64",
        "weight": "0.01775590",
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      },
      {
        "name": "ATI INC",
        "value": "224810902.82",
        "weight": "0.01644514",
        "shared": true
      },
      {
        "name": "CARPENTER TECHNOLOGY CORP",
        "value": "223330908.10",
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      },
      {
        "name": "BWX TECHNOLOGIES INC",
        "value": "212675939.19",
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      },
      {
        "name": "HEICO CORP CL A",
        "value": "186159637.73",
        "weight": "0.01361776",
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      },
      {
        "name": "BlackRock Cash Funds: Institutional, SL Agency Shares",
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      },
      {
        "name": "TEXTRON INC",
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      },
      {
        "name": "HUNTINGTON INGALLS INDUSTRIES INC",
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      },
      {
        "name": "KRATOS DEFENSE and SEC SOLTN INC",
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      },
      {
        "name": "HEICO CORP",
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      },
      {
        "name": "MOOG INC-CLASS A",
        "value": "94697426.08",
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      {
        "name": "KARMAN HOLDINGS INC",
        "value": "69943527.40",
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      },
      {
        "name": "HEXCEL CORPORATION",
        "value": "69926757.20",
        "weight": "0.00511521",
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      },
      {
        "name": "AEROVIRONMENT INC",
        "value": "66187035.95",
        "weight": "0.00484165",
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      },
      {
        "name": "VSE CORP",
        "value": "60359836.40",
        "weight": "0.00441538",
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      },
      {
        "name": "STANDARDAERO INC",
        "value": "55681705.17",
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      },
      {
        "name": "AAR CORP",
        "value": "48571014.18",
        "weight": "0.00355302",
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      },
      {
        "name": "MERCURY SYSTEMS INC",
        "value": "43767362.63",
        "weight": "0.00320163",
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      },
      {
        "name": "LEONARDO DRS INC",
        "value": "39040611.96",
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      },
      {
        "name": "ARCHER AVIATION INC A",
        "value": "36162919.54",
        "weight": "0.00264535",
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      },
      {
        "name": "ASTRONICS CORP",
        "value": "23982294.89",
        "weight": "0.00175433",
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      },
      {
        "name": "INTUITIVE MACHINES INC A",
        "value": "23718120.96",
        "weight": "0.00173500",
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      },
      {
        "name": "LOAR HOLDINGS INC",
        "value": "23167674.97",
        "weight": "0.00169474",
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      },
      {
        "name": "DUCOMMUN INC",
        "value": "19069332.00",
        "weight": "0.00139494",
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      },
      {
        "name": "V2X INC",
        "value": "15960294.50",
        "weight": "0.00116751",
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      },
      {
        "name": "RED CAT HOLDINGS INC",
        "value": "15629931.24",
        "weight": "0.00114334",
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      },
      {
        "name": "CADRE HOLDINGS I",
        "value": "10068316.96",
        "weight": "0.00073651",
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      },
      {
        "name": "NATL PRESTO INDS",
        "value": "8246214.90",
        "weight": "0.00060322",
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      },
      {
        "name": "REDWIRE CORP",
        "value": "7506265.00",
        "weight": "0.00054909",
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      },
      {
        "name": "STURM RUGER & CO",
        "value": "7265630.97",
        "weight": "0.00053149",
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      },
      {
        "name": "SMITH & WESSON B",
        "value": "7247426.16",
        "weight": "0.00053016",
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      },
      {
        "name": "BlackRock Cash Funds: Treasury, SL Agency Shares",
        "value": "7233155.98",
        "weight": "0.00052911",
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      },
      {
        "name": "BETA TECHNOLOGIES INC",
        "value": "5163507.30",
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    ],
    "b_top": [
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        "name": "GENERAL ELECTRIC CO",
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      },
      {
        "name": "RTX CORP",
        "value": "558177576.00",
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      },
      {
        "name": "BOEING CO/THE",
        "value": "454855223.00",
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      },
      {
        "name": "HOWMET AEROSPACE INC",
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      },
      {
        "name": "HEICO CORP CL A",
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      },
      {
        "name": "GENERAL DYNAMICS CORPORATION",
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      {
        "name": "CURTISS WRIGHT CORPORATION",
        "value": "130611545.00",
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      },
      {
        "name": "ROLLS-ROYCE HOLDINGS PLC",
        "value": "115540257.33",
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      },
      {
        "name": "WOODWARD INC",
        "value": "114055524.00",
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      },
      {
        "name": "CARPENTER TECHNOLOGY CORP",
        "value": "113410143.00",
        "weight": "0.02733301",
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      },
      {
        "name": "AXON ENTERPRISE INC",
        "value": "106527360.00",
        "weight": "0.02567419",
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      },
      {
        "name": "ROCKET LAB CORP",
        "value": "103076470.00",
        "weight": "0.02484249",
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      },
      {
        "name": "HUNTINGTON INGALLS INDUSTRIES INC",
        "value": "102106244.00",
        "weight": "0.02460865",
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      },
      {
        "name": "BOMBARDIER INC-B",
        "value": "98616552.18",
        "weight": "0.02376760",
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      },
      {
        "name": "TEXTRON INC",
        "value": "93174925.00",
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      },
      {
        "name": "TRANSDIGM GROUP INC",
        "value": "90283347.00",
        "weight": "0.02175921",
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      },
      {
        "name": "ATI INC",
        "value": "82711104.00",
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      },
      {
        "name": "L3HARRIS TECHNOLOGIES INC",
        "value": "78631278.00",
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      },
      {
        "name": "STANDARDAERO INC",
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      },
      {
        "name": "NORTHROP GRUMMAN CORP",
        "value": "59616474.00",
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      },
      {
        "name": "LOCKHEED MARTIN CORP",
        "value": "51461856.00",
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      },
      {
        "name": "Fidelity Securities Lending Cash Central Fund",
        "value": "48021348.28",
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      },
      {
        "name": "MERCURY SYSTEMS INC",
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      },
      {
        "name": "KARMAN HOLDINGS INC",
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      },
      {
        "name": "CACI INTL-A",
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      },
      {
        "name": "BAE SYSTEMS PLC",
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      },
      {
        "name": "LEONARDO DRS INC",
        "value": "31175715.00",
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      {
        "name": "Fidelity Cash Central Fund",
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      },
      {
        "name": "AEROVIRONMENT INC",
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      },
      {
        "name": "BETA TECHNOLOGIES INC",
        "value": "327120.00",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001004726-26-003740",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626003740/0001004726-26-003740-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0000035402-26-002654",
      "as_of": "2026-02-28",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/320351/000003540226002654/0000035402-26-002654-index.htm"
    }
  ]
}