Multi-Strategy · CIK 0001423053
Ken Griffin
Citadel Advisors
Ken Griffin runs Citadel Advisors, a multi-strategy overseeing $665.87B in disclosed equity holdings (SEC CIK 0001423053). The latest portfolio (2025Q4) discloses 5870 positions across 11 sectors, with the largest positions in NVDA, AMZN and DIA. On a mark-to-market basis the tracked portfolio has returned 19.3% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.
Portfolio
$665.87B
Positions
5870
Quarter
2025Q4
Filings tracked
40
Biggest winner since filing
NOCNORFOLK SOUTHN CORP
+126.1%
+$952.4M
Biggest loser since filing
BKNGBOOKING HOLDINGS INC
-96.3%
−$280.7M
Investment strategy
Ken Griffin is a mega-fund with a diversified portfolio. Top 10 positions are only 13% of the equity book.
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<iframe src="https://openstocks.me/embed/stock/NVDA" width="100%" height="480" frameborder="0" loading="lazy" title="NVDA chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Holdings
11 sectors5870 positions
Top 3 = 1% of book · NVDA, AMZN, DIA
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Performance
vs SPY40 quarters tracked
Mark-to-market portfolio growth vs SPY benchmark, with AUM and concentration history.
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Options & derivatives
Bearish bets6638 option positions
Largest: PUT QQQ ($22.24B notional)
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Activity & trades
Quarter-by-quarterLast move 2025Q4
ADD KIDZW — and 4 more recent moves.
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Recent transactions
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SOLD
PROCAP ACQUISITION CORP
−10,561
~$10.59 · 2025Q4
2026-02-17
NEW
INGRAM MICRO HLDG CORP
+20,604
~$21.34 · 2025Q4
2026-02-17