{
  "name": "IVV security concentration snapshots calculated from SEC Form N-PORT",
  "verifiedAt": "2026-08-20",
  "license": "https://pennycalc.com/data-license/1.0/",
  "methodology": "Security-rank buckets are PennyCalc calculations from publicly filed IVV Form N-PORT holdings. Security share classes remain separate.",
  "limitations": [
    "IVV seeks to track the S&P 500, but this download is not the licensed S&P 500 constituent database.",
    "Form N-PORT filings are lagged and can be amended. The historical series ends at the latest available quarter-end filing.",
    "This download does not include the separate current provider snapshot or a historical sector series because Form N-PORT does not provide a consistent sector field."
  ],
  "sources": {
    "secDataset": "https://www.sec.gov/data-research/sec-markets-data/form-n-port-data-sets",
    "secLatestFiling": "https://www.sec.gov/Archives/edgar/data/1100663/000207169126012459/0002071691-26-012459-index.html"
  },
  "historicalSecurityConcentration": [
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      "date": "2019-09-30",
      "filingDate": "2019-11-25",
      "accession": "0001752724-19-177847",
      "filingUrl": "https://www.sec.gov/Archives/edgar/data/1100663/000175272419177847/0001752724-19-177847-index.html",
      "netAssetsUsd": 186487895055.89,
      "equityConstituentLines": 505,
      "equityTotalPct": 99.8621,
      "topOne": 4.2906,
      "rank2To3": 6.7609,
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      "remainingEquity": 78.3039,
      "nonEquityAndRounding": 0.1379,
      "topThree": 11.0515,
      "topFive": 14.4317,
      "topTen": 21.5582,
      "sourceType": "SEC Form N-PORT"
    },
    {
      "date": "2019-12-31",
      "filingDate": "2020-02-27",
      "accession": "0001752724-20-038725",
      "filingUrl": "https://www.sec.gov/Archives/edgar/data/1100663/000175272420038725/0001752724-20-038725-index.html",
      "netAssetsUsd": 201408690621,
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      "topFive": 15.4265,
      "topTen": 22.676,
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    {
      "date": "2020-03-31",
      "filingDate": "2020-06-01",
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