{
 "company": "Invesco QQQ Tr",
 "ticker": "QQQ",
 "page": "https://www.moatshark.com/s/qqq",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "Matrix Asset Advisors",
   "moatshark_slug": "matrix-asset-advisors",
   "period": "2026-09-30",
   "portfolio_pct": 0.09,
   "value_usd": 1105027,
   "change": "ADD",
   "share_change_pct": 0.1,
   "quarters_held": 26
  },
  {
   "manager": "Giverny Capital",
   "moatshark_slug": "giverny-capital",
   "period": "2026-06-30",
   "portfolio_pct": 0.01,
   "value_usd": 287932,
   "change": "NEW",
   "share_change_pct": null,
   "quarters_held": 1
  },
  {
   "manager": "Mairs & Power",
   "moatshark_slug": "mairs-power",
   "period": "2026-06-30",
   "portfolio_pct": 0.01,
   "value_usd": 1303563,
   "change": "ADD",
   "share_change_pct": 0.6,
   "quarters_held": 26
  }
 ]
}