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Hedge fund, long-only 13F filer

Citadel Advisors

Citadel Advisors is the multi-strategy investment firm Ken Griffin founded in 1990, running equities, fixed income and macro, credit, commodities and quantitative strategies. Its books are heavily hedged with options, which inflates the notional value a 13F discloses. It discloses US-listed long equity (and some options) positions each quarter on SEC Form 13F — bonds, cash, private businesses and non-US holdings are not in that filing.

174.1BUSDreported value
13,572positions
+33.0BUSDon the prior filing
SPYlargest holding, 4.1%

How has Citadel Advisors's portfolio moved against the S&P 500?

Rebuilt from its quarterly filings, Citadel's disclosed portfolio is up 82% since September 2024. Over the stretch where we can compare, since December 2025, it is up 18% against 9% for the S&P 500. The latest filing, for the quarter ended 30 June 2026, lists 13,572 positions worth 174.1B USD.

Citadel's disclosed holdings, rebuilt at each filing

S&P 500, from Dec 2025, drawn from Citadel's level then

Long US stock only, held from one filing to the next: an illustrative read, not an audited return.

See the holdings

References
  1. SEC EDGAR Form 13F-HR, quarterly, up to 45 days delayed. Filings are public records. Ticker mapping via SEC public files and OpenFIGI.
  2. Finazon prior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
Citadel Advisors 13F portfolio — holdings and quarterly moves · The Distributed