{
  "page": "compare",
  "query": {
    "a": "EFRA",
    "b": "SIMS"
  },
  "retrieved_at": "2026-07-07T18:01:02+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 Environmental Infrastructure and Industrials ETF",
    "ticker": "EFRA",
    "slug": "EFRA",
    "series_id": "S000077884",
    "html_url": "https://fundwatcher.app/funds/EFRA/"
  },
  "fund_b": {
    "name": "State Street(R) SPDR(R) S&P Kensho Intelligent Structures ETF",
    "ticker": "SIMS",
    "slug": "SIMS",
    "series_id": "S000059700",
    "html_url": "https://fundwatcher.app/funds/SIMS/"
  },
  "overlap": {
    "coverage_a_by_b": "0.1149305813196340219120404964",
    "coverage_b_by_a": "0.1149305813196340219120404964",
    "shared_count": 6,
    "as_of": {
      "a": "2026-03-31",
      "b": "2026-03-31"
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    "a_top": [
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        "name": "WESTINGHOUSE AIR BRAKE TECH CORP",
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      },
      {
        "name": "VEOLIA ENVIRONNE",
        "value": "332795.52",
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      },
      {
        "name": "XYLEM INC",
        "value": "327788.50",
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      },
      {
        "name": "VERALTO CORP",
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      },
      {
        "name": "AMERICAN WATER WRKS COMPANY",
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      {
        "name": "SMURFIT WESTROCK",
        "value": "318839.85",
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      },
      {
        "name": "CLEAN HARBORS INC",
        "value": "223075.94",
        "weight": "0.04078380",
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      },
      {
        "name": "SABESP",
        "value": "221939.55",
        "weight": "0.04057604",
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      },
      {
        "name": "PENTAIR PLC",
        "value": "218820.32",
        "weight": "0.04000577",
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      {
        "name": "UNITED UTILITIES",
        "value": "183166.98",
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      {
        "name": "ESSENTIAL UTILITIES INC",
        "value": "173201.27",
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      {
        "name": "SEVERN TRENT",
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      },
      {
        "name": "STANTEC INC",
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      },
      {
        "name": "ADVANCED DRAINAGE SYSTEMS INC",
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        "name": "CORE & MAIN IN-A",
        "value": "144050.40",
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      {
        "name": "WATTS WATER TECH INC CL A",
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      {
        "name": "TETRA TECH INC",
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      {
        "name": "YANGZIJIANG SHIP",
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      },
      {
        "name": "NGK INSULATORS",
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      {
        "name": "Shimadzu Corporation",
        "value": "90298.83",
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      {
        "name": "KURITA WATER INDUSTRIES LTD COMMON STOCK",
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      {
        "name": "TOTO LTD",
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      {
        "name": "BADGER METER INC",
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      {
        "name": "UMICORE",
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      {
        "name": "MUELLER WATER PRODUCTS INC A",
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      {
        "name": "FRANKLIN ELECTRIC CO. INC.",
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      {
        "name": "PENNON GRP PLC",
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      {
        "name": "DOWA HOLDINGS CO",
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      {
        "name": "SWECO AB-B",
        "value": "44128.45",
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      {
        "name": "AMER STATES WATE",
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      },
      {
        "name": "TOMRA SYSTEMS ASA",
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      {
        "name": "CALIF WATER SRVC",
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      {
        "name": "INGEVITY CORP",
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      {
        "name": "ORGANO CORP",
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      {
        "name": "ARCADIS NV",
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      {
        "name": "COPASA MG - ORD",
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      {
        "name": "SIMS LTD",
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        "weight": "0.00575787",
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      {
        "name": "QATAR ELECTRICIT",
        "value": "29761.31",
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      {
        "name": "SJW GROUP",
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      },
      {
        "name": "LANDIS+GYR GROUP",
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      {
        "name": "RELIANCE WORLDWIDE CORP",
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      {
        "name": "ASAHI HOLDINGS I",
        "value": "23993.05",
        "weight": "0.00438652",
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      },
      {
        "name": "WASION HOLDINGS LTD",
        "value": "21781.94",
        "weight": "0.00398228",
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      },
      {
        "name": "BJ ENT WATER",
        "value": "21502.56",
        "weight": "0.00393120",
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      },
      {
        "name": "BEFESA SA",
        "value": "19849.36",
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      },
      {
        "name": "SANEPAR-UNIT",
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      },
      {
        "name": "LINDSAY CORP",
        "value": "18932.13",
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      {
        "name": "NFI GROUP INC",
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        "weight": "0.00336966",
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      {
        "name": "CAF",
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      },
      {
        "name": "AGUAS ANDINAS-A",
        "value": "15725.65",
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    ],
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      {
        "name": "State Street Navigator Securities Lending Portfolio II",
        "value": "440898.57",
        "weight": "0.05230902",
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      },
      {
        "name": "SILICON LABS",
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      {
        "name": "BLOOM ENERGY CORP CL A",
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      {
        "name": "SELECT WATER SOLUTIONS INC CL A",
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      {
        "name": "GENERAC HOLDINGS INC",
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      {
        "name": "JOHNSON CONTROLS INTERNATIONAL PLC",
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      {
        "name": "MUELLER WATER PRODUCTS INC A",
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      },
      {
        "name": "HAWKINS INC",
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      {
        "name": "ARLO TECHNOLOGIES INC",
        "value": "245809.02",
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      {
        "name": "RESIDEO TECHNOLOGIES INC",
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      {
        "name": "SUNCOR ENERGY INC",
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      {
        "name": "ITRON INC",
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      {
        "name": "VERALTO CORP",
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      {
        "name": "TETRA TECH INC",
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      {
        "name": "XYLEM INC",
        "value": "214024.50",
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      {
        "name": "BADGER METER INC",
        "value": "212985.30",
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      },
      {
        "name": "PENTAIR PLC",
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      {
        "name": "ALARM.COM HOLDINGS INC",
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      {
        "name": "COMMSTCK",
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      {
        "name": "ADT INC",
        "value": "201193.11",
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      },
      {
        "name": "SHELL PLC SPONS ADR",
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      },
      {
        "name": "SHOALS TECHNOLOGIES GROUP INC",
        "value": "189786.94",
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      {
        "name": "HONEYWELL INTL INC",
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      {
        "name": "ON SEMICONDUCTOR CORP",
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      {
        "name": "BCE INC",
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      },
      {
        "name": "AMETEK INC NEW",
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      },
      {
        "name": "CARRIER GLOBAL CORP",
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      },
      {
        "name": "CHART INDUSTRIES INC",
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      {
        "name": "NAPCO SECURITY TECHNOLOGIES INC",
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      },
      {
        "name": "GENTEX CORP",
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      {
        "name": "ROKU INC CLASS A",
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      {
        "name": "CORE & MAIN IN-A",
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      {
        "name": "BAIDU INC SPON ADR",
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      {
        "name": "NRG ENERGY INC",
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      {
        "name": "TE CONNECTIVITY PLC",
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        "name": "PARSONS CORP",
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      {
        "name": "EVGO INC CL A",
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      {
        "name": "ROPER TECHNOLOGIES INC",
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      {
        "name": "ACUITY INC",
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      },
      {
        "name": "ENERGY RECOVERY INC",
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      },
      {
        "name": "REKOR SYSTEMS INC",
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      },
      {
        "name": "FLUENCE ENERGY INC",
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      },
      {
        "name": "CONSOLIDATED WATER CO LTD",
        "value": "67597.92",
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      },
      {
        "name": "SMARTRENT INC",
        "value": "21637.50",
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    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0001004726-26-003723",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626003723/0001004726-26-003723-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001410368-26-055521",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1064642/000141036826055521/0001410368-26-055521-index.htm"
    }
  ]
}