Great investors · Ken Griffin
Ken Griffin portfolio · Q2 2026
Ken Griffin, founder of Citadel. This is the stock portfolio Citadel reported to the SEC (Form 13F) as of Jun 30, 2026, filed on Aug 14, 2026.
The 13F is filed by the firm, not the person: when this page says what Ken Griffin “owns” or “bought”, it means the positions of Citadel as a whole. With 6,290 positions, it is the sum of many teams and strategies (and, where options are reported, of hedges and market-making): it is not a portfolio picked by one person.
Next 13F: Q3 2026 usually filed ~Nov 16, 2026; deadline Nov 16, 2026. See the quarter page →
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%; more than 20% is options; it is a quant or multi-manager firm; its 13F does not reflect a thesis. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
What stocks does Ken Griffin own?
The largest positions of Citadel in Q2 2026 are IVV, AMZN, NVDA, AAPL, GOOGL.
- 1iShares Core S&P 500 ETFIVVIncreased7.7%
- 2Amazon.comAMZNIncreased1.5%
- 3NVIDIANVDAReduced1.4%
- 4AppleAAPLIncreased1.2%
- 5AlphabetGOOGL · GOOGIncreased1.1%
- 6MicrosoftMSFTIncreased0.8%
- 7Electronic ArtsEAIncreased0.7%
- 8Warner Bros. DiscoveryWBDIncreased0.7%
- 9Eli LillyLLYIncreased0.7%
- 10BroadcomAVGOReduced0.6%
Where there are two tickers (e.g. GOOGL · GOOG) they are two share classes of the same company and the weight is the sum: that is why there are 6,160 rows here and the 13F has 6,290 positions.
What did Ken Griffin buy in Q2 2026?
- IncreasediShares Core S&P 500 ETFIVV+335% shares · 7.7% of portfolio
- IncreasedEli LillyLLY+291% shares · 0.7% of portfolio
- IncreasedAbbVieABBV+547% shares · 0.5% of portfolio
- IncreasedAmazon.comAMZN+34% shares · 1.5% of portfolio
- IncreasedKLAKLAC+571% shares · 0.4% of portfolio
- IncreasedSeagate Technology HoldingsSTX+582% shares · 0.4% of portfolio
- IncreasedElectronic ArtsEA+103% shares · 0.7% of portfolio
- IncreasedAbbott LaboratoriesABT+349% shares · 0.5% of portfolio
What did Ken Griffin sell in Q2 2026?
- ReducedMicron TechnologyMU−87% shares · 0.4% of portfolio
- ReducedState Str Spdr DOW Jones INDDIA−92% shares · 0.1% of portfolio
- ReducedNVIDIANVDA−37% shares · 1.4% of portfolio
- ReducedTaiwan Semiconductor ManufacturingTSM−87% shares · 0.1% of portfolio
- ReducedMeta PlatformsMETA−39% shares · 0.4% of portfolio
- ReducedTeslaTSLA−41% shares · 0.3% of portfolio
- ReducedNorfolk SouthernNSC−39% shares · 0.3% of portfolio
- ReducedDatadogDDOG−47% shares · 0.2% of portfolio
71 positions opened or added to and 587 trimmed or closed, against the previous quarter's 13F. Each is measured the same way across the page: how much the share count changed and its weight in the portfolio today (share classes of the same company added together). The 13F has 6013 positions with a change, 5 of them material (0.5 points of the portfolio or more). The largest full exits are listed (200 of 558), even those that moved less than 0.5 points of the portfolio. Where an increase or cut shows no share change, it adds up two share classes of the same company (e.g. GOOGL and GOOG).
Declared options (25)
Besides stocks, Citadel declared 12 puts (they gain if the stock falls) and 13 calls (they gain if it rises) with a notional of $701 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.
- CALLState Str Spdr S&P 500 ETF TSPY$35.7 bn
- PUTInvesco QQQ Trust Series 1 ETFQQQ$26.6 bn
- CALLInvesco QQQ Trust Series 1 ETFQQQ$23.5 bn
- PUTState Str Spdr S&P 500 ETF TSPY$23.3 bn
- PUTMicron TechnologyMU$22.2 bn
- CALLMicron TechnologyMU$16.3 bn
- CALLTeslaTSLA$13.7 bn
- CALLNVIDIANVDA$12.2 bn
- PUTSandiskSNDK$11.7 bn
- PUTVaneck ETF TrustSMH$11.6 bn
- CALLSandiskSNDK$10.3 bn
- CALLMicrosoftMSFT$9.7 bn
Source: SEC 13F filings show the portfolio at quarter end and are filed up to 45 days later: positions may have changed. They only cover U.S.-listed stocks and some others; no short positions or cash. Not investment advice.