{
  "page": "compare",
  "query": {
    "a": "VGSIX",
    "b": "IYR"
  },
  "retrieved_at": "2026-07-07T16:20:13+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": "VANGUARD REAL ESTATE INDEX FUND",
    "ticker": "VGSIX",
    "slug": "VGSIX",
    "series_id": "S000002924",
    "html_url": "https://fundwatcher.app/funds/VGSIX/"
  },
  "fund_b": {
    "name": "iShares U.S. Real Estate ETF",
    "ticker": "IYR",
    "slug": "IYR",
    "series_id": "S000004328",
    "html_url": "https://fundwatcher.app/funds/IYR/"
  },
  "overlap": {
    "coverage_a_by_b": "0.7425691054506490263099276852",
    "coverage_b_by_a": "0.7425691054506490263099276851",
    "shared_count": 57,
    "as_of": {
      "a": "2026-01-31",
      "b": "2026-03-31"
    },
    "a_top": [
      {
        "name": "VANG-RL ES2-INS+",
        "value": "9546283248.95",
        "weight": "0.14508092",
        "shared": false
      },
      {
        "name": "WELLTOWER INC",
        "value": "4653609539.88",
        "weight": "0.07072385",
        "shared": true
      },
      {
        "name": "PROLOGIS INC REIT",
        "value": "4526265438.72",
        "weight": "0.06878852",
        "shared": true
      },
      {
        "name": "AMERICAN TOWER CORP",
        "value": "3133907087.76",
        "weight": "0.04762797",
        "shared": true
      },
      {
        "name": "EQUINIX INC",
        "value": "2999170064.33",
        "weight": "0.04558029",
        "shared": true
      },
      {
        "name": "SIMON PROPERTY",
        "value": "2331697758.60",
        "weight": "0.03543629",
        "shared": true
      },
      {
        "name": "DIGITAL REALTY TRUST INC",
        "value": "2112847022.55",
        "weight": "0.03211028",
        "shared": true
      },
      {
        "name": "REALTY INCOME CORP REIT",
        "value": "2071022671.52",
        "weight": "0.03147464",
        "shared": true
      },
      {
        "name": "CBRE GROUP INC - CL A",
        "value": "1892045227.95",
        "weight": "0.02875461",
        "shared": true
      },
      {
        "name": "PUBLIC STORAGE",
        "value": "1628116021.47",
        "weight": "0.02474351",
        "shared": true
      },
      {
        "name": "CROWN CASTLE INC",
        "value": "1411255238.68",
        "weight": "0.02144774",
        "shared": true
      },
      {
        "name": "VENTAS INC REIT",
        "value": "1317743783.10",
        "weight": "0.02002659",
        "shared": true
      },
      {
        "name": "EXTRA SPACE STORAGE INC",
        "value": "1093242822.84",
        "weight": "0.01661470",
        "shared": true
      },
      {
        "name": "VICI PROPERTIES",
        "value": "1043755811.28",
        "weight": "0.01586262",
        "shared": true
      },
      {
        "name": "IRON MOUNTAIN INC",
        "value": "1015797648.87",
        "weight": "0.01543772",
        "shared": true
      },
      {
        "name": "COSTAR GROUP INC",
        "value": "968043210.00",
        "weight": "0.01471197",
        "shared": true
      },
      {
        "name": "AVALONBAY COMMUNITIES INC REIT",
        "value": "944389250.04",
        "weight": "0.01435248",
        "shared": true
      },
      {
        "name": "EQUITY RESIDENTIAL REIT",
        "value": "844068935.20",
        "weight": "0.01282785",
        "shared": true
      },
      {
        "name": "SBA COMMUNICATIONS CORP",
        "value": "738027212.31",
        "weight": "0.01121627",
        "shared": true
      },
      {
        "name": "WEYERHAEUSER CO",
        "value": "694389739.58",
        "weight": "0.01055308",
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      },
      {
        "name": "JONES LANG LASALLE INC",
        "value": "633072997.55",
        "weight": "0.00962121",
        "shared": true
      },
      {
        "name": "ESSEX PROPERTY TRUST INC",
        "value": "605561469.94",
        "weight": "0.00920310",
        "shared": true
      },
      {
        "name": "SUN COMMUNITIES INC - REIT",
        "value": "595383415.77",
        "weight": "0.00904842",
        "shared": true
      },
      {
        "name": "MID AMERICA APT CMNTY INC",
        "value": "586954121.00",
        "weight": "0.00892031",
        "shared": true
      },
      {
        "name": "INVITATION HOMES INC",
        "value": "581119074.36",
        "weight": "0.00883163",
        "shared": true
      },
      {
        "name": "WP CAREY INC",
        "value": "570233731.50",
        "weight": "0.00866620",
        "shared": true
      },
      {
        "name": "KIMCO REALTY CORPORATION",
        "value": "532935811.80",
        "weight": "0.00809936",
        "shared": true
      },
      {
        "name": "OMEGA HEALTHCARE INVESTORS INC",
        "value": "483241005.80",
        "weight": "0.00734412",
        "shared": true
      },
      {
        "name": "HOST HOTELS & RE",
        "value": "475595464.26",
        "weight": "0.00722793",
        "shared": true
      },
      {
        "name": "GAMING AND LEISURE PROPRTI INC",
        "value": "472802589.75",
        "weight": "0.00718548",
        "shared": true
      },
      {
        "name": "REGENCY CENTERS CORP REIT",
        "value": "469203808.92",
        "weight": "0.00713079",
        "shared": true
      },
      {
        "name": "HEALTHPEAK PROPERTIES INC",
        "value": "447259250.88",
        "weight": "0.00679728",
        "shared": true
      },
      {
        "name": "UDR INC",
        "value": "436554368.05",
        "weight": "0.00663459",
        "shared": true
      },
      {
        "name": "CAMDEN PROP TR",
        "value": "434994234.15",
        "weight": "0.00661088",
        "shared": true
      },
      {
        "name": "EQUITY LIFESTYLE PPTYS INC",
        "value": "434158060.84",
        "weight": "0.00659818",
        "shared": true
      },
      {
        "name": "LAMAR ADVERTISING CO CL A",
        "value": "411273967.65",
        "weight": "0.00625039",
        "shared": true
      },
      {
        "name": "ZILLOW GROUP INC CL C",
        "value": "393177673.35",
        "weight": "0.00597537",
        "shared": true
      },
      {
        "name": "AMERICAN HOMES-A",
        "value": "389642911.92",
        "weight": "0.00592165",
        "shared": true
      },
      {
        "name": "EASTGROUP PROP",
        "value": "361658499.72",
        "weight": "0.00549635",
        "shared": true
      },
      {
        "name": "BXP INC",
        "value": "358387171.28",
        "weight": "0.00544664",
        "shared": true
      },
      {
        "name": "REXFORD INDUSTRIAL REALTY INC",
        "value": "358031563.26",
        "weight": "0.00544123",
        "shared": true
      },
      {
        "name": "ALEXANDRIA REAL ES EQ INC REIT",
        "value": "317532546.48",
        "weight": "0.00482574",
        "shared": true
      },
      {
        "name": "CUBESMART",
        "value": "314246909.07",
        "weight": "0.00477581",
        "shared": true
      },
      {
        "name": "CARETRUST REIT INC",
        "value": "311255075.34",
        "weight": "0.00473034",
        "shared": false
      },
      {
        "name": "FED REALTY INVS",
        "value": "309499323.48",
        "weight": "0.00470366",
        "shared": true
      },
      {
        "name": "BRIXMOR PROPERTY",
        "value": "306139188.72",
        "weight": "0.00465259",
        "shared": true
      },
      {
        "name": "AGREE REALTY CORP",
        "value": "298426334.76",
        "weight": "0.00453537",
        "shared": true
      },
      {
        "name": "COMPASS INC - A",
        "value": "297937475.96",
        "weight": "0.00452794",
        "shared": false
      },
      {
        "name": "AMERICAN HEALTHCARE REIT INC",
        "value": "295191823.57",
        "weight": "0.00448622",
        "shared": false
      },
      {
        "name": "NNN REIT INC",
        "value": "293697952.29",
        "weight": "0.00446351",
        "shared": true
      }
    ],
    "b_top": [
      {
        "name": "WELLTOWER INC",
        "value": "395594973.35",
        "weight": "0.09995334",
        "shared": true
      },
      {
        "name": "PROLOGIS INC REIT",
        "value": "364580726.52",
        "weight": "0.09211710",
        "shared": true
      },
      {
        "name": "EQUINIX INC",
        "value": "186170121.52",
        "weight": "0.04703883",
        "shared": true
      },
      {
        "name": "DIGITAL REALTY TRUST INC",
        "value": "183904124.79",
        "weight": "0.04646629",
        "shared": true
      },
      {
        "name": "SIMON PROPERTY",
        "value": "181924014.71",
        "weight": "0.04596599",
        "shared": true
      },
      {
        "name": "REALTY INCOME CORP REIT",
        "value": "174793401.30",
        "weight": "0.04416433",
        "shared": true
      },
      {
        "name": "AMERICAN TOWER CORP",
        "value": "174494775.10",
        "weight": "0.04408887",
        "shared": true
      },
      {
        "name": "PUBLIC STORAGE",
        "value": "135205959.68",
        "weight": "0.03416193",
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      },
      {
        "name": "CBRE GROUP INC - CL A",
        "value": "124376391.88",
        "weight": "0.03142567",
        "shared": true
      },
      {
        "name": "VENTAS INC REIT",
        "value": "122742375.30",
        "weight": "0.03101281",
        "shared": true
      },
      {
        "name": "CROWN CASTLE INC",
        "value": "111891504.10",
        "weight": "0.02827116",
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      },
      {
        "name": "IRON MOUNTAIN INC",
        "value": "95483944.76",
        "weight": "0.02412553",
        "shared": true
      },
      {
        "name": "VICI PROPERTIES",
        "value": "92271469.56",
        "weight": "0.02331385",
        "shared": true
      },
      {
        "name": "EXTRA SPACE STORAGE INC",
        "value": "87949153.26",
        "weight": "0.02222175",
        "shared": true
      },
      {
        "name": "AVALONBAY COMMUNITIES INC REIT",
        "value": "73089160.65",
        "weight": "0.01846714",
        "shared": true
      },
      {
        "name": "EQUITY RESIDENTIAL REIT",
        "value": "64261447.25",
        "weight": "0.01623667",
        "shared": true
      },
      {
        "name": "SBA COMMUNICATIONS CORP",
        "value": "57947715.90",
        "weight": "0.01464141",
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      },
      {
        "name": "WEYERHAEUSER CO",
        "value": "55623982.96",
        "weight": "0.01405428",
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      },
      {
        "name": "COSTAR GROUP INC",
        "value": "54026555.20",
        "weight": "0.01365067",
        "shared": true
      },
      {
        "name": "ESSEX PROPERTY TRUST INC",
        "value": "49280396.00",
        "weight": "0.01245147",
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      },
      {
        "name": "ANNALY CAPITAL MGMT INC REIT",
        "value": "48012551.55",
        "weight": "0.01213113",
        "shared": false
      },
      {
        "name": "KIMCO REALTY CORPORATION",
        "value": "47863998.63",
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      },
      {
        "name": "WP CAREY INC",
        "value": "47062300.00",
        "weight": "0.01189104",
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      },
      {
        "name": "SUN COMMUNITIES INC - REIT",
        "value": "46270524.28",
        "weight": "0.01169098",
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      },
      {
        "name": "JONES LANG LASALLE INC",
        "value": "45385067.52",
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      },
      {
        "name": "MID AMERICA APT CMNTY INC",
        "value": "45111616.48",
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      },
      {
        "name": "INVITATION HOMES INC",
        "value": "44286924.50",
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      },
      {
        "name": "OMEGA HEALTHCARE INVESTORS INC",
        "value": "40927748.54",
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      },
      {
        "name": "GAMING AND LEISURE PROPRTI INC",
        "value": "39680135.37",
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      },
      {
        "name": "REGENCY CENTERS CORP REIT",
        "value": "39356062.20",
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      },
      {
        "name": "HOST HOTELS & RE",
        "value": "38721938.48",
        "weight": "0.00978371",
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      },
      {
        "name": "EQUITY LIFESTYLE PPTYS INC",
        "value": "38233560.82",
        "weight": "0.00966032",
        "shared": true
      },
      {
        "name": "HEALTHPEAK PROPERTIES INC",
        "value": "36085800.48",
        "weight": "0.00911765",
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      },
      {
        "name": "AGNC INVESTMENT CORP",
        "value": "35105090.27",
        "weight": "0.00886986",
        "shared": false
      },
      {
        "name": "LAMAR ADVERTISING CO CL A",
        "value": "34766650.08",
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      },
      {
        "name": "UDR INC",
        "value": "32102620.32",
        "weight": "0.00811124",
        "shared": true
      },
      {
        "name": "CAMDEN PROP TR",
        "value": "31912260.54",
        "weight": "0.00806314",
        "shared": true
      },
      {
        "name": "EASTGROUP PROP",
        "value": "31142317.95",
        "weight": "0.00786860",
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      },
      {
        "name": "AMERICAN HOMES-A",
        "value": "28763323.60",
        "weight": "0.00726751",
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      },
      {
        "name": "AGREE REALTY CORP",
        "value": "28544596.88",
        "weight": "0.00721225",
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      },
      {
        "name": "BRIXMOR PROPERTY",
        "value": "27902102.40",
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      },
      {
        "name": "CUBESMART",
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      },
      {
        "name": "FED REALTY INVS",
        "value": "26349851.32",
        "weight": "0.00665771",
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      },
      {
        "name": "NNN REIT INC",
        "value": "25226574.12",
        "weight": "0.00637389",
        "shared": true
      },
      {
        "name": "FIRST INDUSTRIAL REALTY TRUST",
        "value": "24226133.75",
        "weight": "0.00612112",
        "shared": true
      },
      {
        "name": "BXP INC",
        "value": "24182286.00",
        "weight": "0.00611004",
        "shared": true
      },
      {
        "name": "REXFORD INDUSTRIAL REALTY INC",
        "value": "23810911.35",
        "weight": "0.00601620",
        "shared": true
      },
      {
        "name": "ZILLOW GROUP INC CL C",
        "value": "23085488.20",
        "weight": "0.00583291",
        "shared": true
      },
      {
        "name": "ALEXANDRIA REAL ES EQ INC REIT",
        "value": "22878746.88",
        "weight": "0.00578068",
        "shared": true
      },
      {
        "name": "STAG INDUSTRIAL INC CL A",
        "value": "21768340.20",
        "weight": "0.00550012",
        "shared": true
      }
    ]
  },
  "error": null,
  "sources": [
    {
      "label": "N-PORT (fund A)",
      "accession_no": "0000734383-26-000087",
      "as_of": "2026-01-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/734383/000073438326000087/0000734383-26-000087-index.htm"
    },
    {
      "label": "N-PORT (fund B)",
      "accession_no": "0001004726-26-003750",
      "as_of": "2026-03-31",
      "edgar_url": "https://www.sec.gov/Archives/edgar/data/1100663/000100472626003750/0001004726-26-003750-index.htm"
    }
  ]
}