Ken Griffin Citadel Advisors
Ken Griffin founded Citadel, one of the world’s largest and most successful hedge funds. Starting his trading career from his Harvard dorm room at a young age, Griffin quickly developed a keen sense for markets and built Citadel into a global powerhouse with billions in assets under management. Known for his quantitative and technology-driven strategies, Griffin has also made headlines for significant philanthropic contributions, supporting causes in education, the arts, and public institutions. Over the years, he has earned recognition as one of the preeminent figures in modern finance.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$2.49B |
| 2 |
NVIDIA
NVDA
|
+$2.19B |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.94B |
| 4 |
TSMC
TSM
|
+$728M |
| 5 |
UnitedHealth
UNH
|
+$705M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$775M |
| 2 |
AbbVie
ABBV
|
+$540M |
| 3 |
Delta Air Lines
DAL
|
+$434M |
| 4 |
Eli Lilly
LLY
|
+$433M |
| 5 |
DexCom
DXCM
|
+$433M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.89% |
| 2 | Healthcare | 2.92% |
| 3 | Financials | 2.71% |
| 4 | Consumer Discretionary | 2.52% |
| 5 | Industrials | 2.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
751
CALL
State Street SPDR S&P Metals & Mining ETF
XME
$4.46B
| $120M | 0.02% |
1,155,700
+890,400
| +336% | +$88M |
|
752
PUT
Ulta Beauty
ULTA
$22.2B
| $119M | 0.02% |
196,600
-20,100
| -9% | -$11M |
|
753
Emcor
EME
$36.7B
| $118M | 0.02% |
193,361
-112,191
| -37% | -$72.6M |
|
754
Boston Properties
BXP
$11B
| $118M | 0.02% |
1,751,453
+648,546
| +59% | +$46.1M |
|
755
CALL
Dow Inc
DOW
$21.9B
| $118M | 0.02% |
5,037,400
+1,916,200
| +61% | +$44.1M |
|
|
B
756
Barrick Mining
B
$67.3B
| $118M | 0.02% |
2,703,355
+44,910
| +2% | +$1.68M |
|
757
Mettler-Toledo International
MTD
$28.7B
| $118M | 0.02% |
84,373
+30,401
| +56% | +$42.5M |
|
758
CALL
Comcast
CMCSA
$92.9B
| $118M | 0.02% |
3,934,500
+1,542,500
| +64% | +$44M |
|
759
PUT
Estee Lauder
EL
$31.6B
| $117M | 0.02% |
1,121,500
-179,200
| -14% | -$17.4M |
|
760
PUT
Take-Two Interactive
TTWO
$45.2B
| $117M | 0.02% |
458,700
+139,300
| +44% | +$34.7M |
|
761
Domino's
DPZ
$11.6B
| $117M | 0.02% |
279,561
-338,961
| -55% | -$141M |
|
762
CALL
S&P Global
SPGI
$125B
| $116M | 0.02% |
222,600
+78,700
| +55% | +$38.9M |
|
763
Waste Management
WM
$89.6B
| $116M | 0.02% |
529,359
-335,496
| -39% | -$71.5M |
|
764
Bank of America
BAC
$448B
| $116M | 0.02% |
2,109,762
+191,356
| +10% | +$10.1M |
|
765
PUT
RH
RH
$3.4B
| $116M | 0.02% |
647,300
+28,900
| +5% | +$4.94M |
|
766
EQT Corp
EQT
$33.8B
| $115M | 0.02% |
2,153,420
-952,768
| -31% | -$53.5M |
|
767
Cigna
CI
$73.5B
| $115M | 0.02% |
419,288
+33,438
| +9% | +$9.37M |
|
|
RNAM
768
DELISTED
Avidity Biosciences
RNAM
| $115M | 0.02% |
1,592,429
+692,665
| +77% | +$44.7M |
|
|
769
PUT
EQT Corp
EQT
$33.8B
| $115M | 0.02% |
2,142,075
+667,100
| +45% | +$37.5M |
|
770
PUT
HCA Healthcare
HCA
$89.1B
| $115M | 0.02% |
245,800
+51,600
| +27% | +$24M |
|
771
PUT
Philip Morris
PM
$294B
| $114M | 0.02% |
711,500
-434,500
| -38% | -$67.3M |
|
772
United Rentals
URI
$69.7B
| $114M | 0.02% |
140,676
+78,342
| +126% | +$68M |
|
773
CALL
Centene
CNC
$32.6B
| $114M | 0.02% |
2,762,400
-1,020,700
| -27% | -$38.2M |
|
774
Hasbro
HAS
$13.6B
| $113M | 0.02% |
1,381,971
-1,009,247
| -42% | -$79.1M |
|
775
MarketAxess Holdings
MKTX
$5.72B
| $113M | 0.02% |
625,208
+315,122
| +102% | +$53.8M |
|
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Ken Griffin's Q4 2025 Portfolio in Review
As of Q4 2025, Ken Griffin held 14,701 positions worth $666B, up 1.3% from $657B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin's Q4 2025 filing shows 2,078 new, 5,000 increased, 5,362 reduced and 2,191 closed positions. Its largest new stake was Medline Inc: 6,006,339 shares worth $252M. The largest sale was Meta Platforms (Facebook), an estimated $775M.
By sector, the portfolio is most concentrated in Technology at 4.9% of assets, up from 3.8% a quarter earlier, followed by Healthcare and Financials.
- Ken Griffin's largest Q4 2025 buy was Medline Inc: 6,006,339 shares worth $252M.
- Ken Griffin added most to Amazon in Q4 2025, an estimated $2.49B increase.
- Ken Griffin's biggest Q4 2025 reduction was Meta Platforms (Facebook), cutting an estimated $775M.
- Ken Griffin fully exited WEX in Q4 2025, selling an estimated $131M.
- Ken Griffin's ten largest holdings make up 23% of its $666B portfolio in Q4 2025.
- Ken Griffin opened 2,078 new positions and closed 2,191 in Q4 2025.
- Ken Griffin's portfolio value rose 1.3% quarter-over-quarter to $666B.
Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.