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 | |
|---|---|---|---|---|---|---|
701
Verisk Analytics
VRSK
$24.2B
| $130M | 0.02% |
579,209
+550,383
| +1,909% | +$124M |
|
702
Capital One
COF
$137B
| $130M | 0.02% |
534,439
-1,607,493
| -75% | -$358M |
|
703
Vertiv
VRT
$111B
| $129M | 0.02% |
794,262
+17,322
| +2% | +$3.01M |
|
704
Johnson Controls International
JCI
$91.7B
| $129M | 0.02% |
1,074,317
-932,221
| -46% | -$107M |
|
705
CALL
Constellation Brands
STZ
$23.3B
| $128M | 0.02% |
929,400
-203,300
| -18% | -$27.9M |
|
706
CALL
Diamondback Energy
FANG
$55.9B
| $128M | 0.02% |
851,700
+93,000
| +12% | +$13.7M |
|
|
TERN
707
DELISTED
Terns Pharmaceuticals
TERN
| $128M | 0.02% |
3,166,642
+1,577,308
| +99% | +$36.5M |
|
708
CALL
AT&T
T
$168B
| $128M | 0.02% |
5,148,500
-1,426,100
| -22% | -$36.1M |
|
709
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$24.8B
| $128M | 0.02% |
3,040,955
+2,210,452
| +266% | +$92.3M |
|
710
PUT
Gilead Sciences
GILD
$171B
| $128M | 0.02% |
1,039,200
-191,300
| -16% | -$23.2M |
|
711
PUT
MetLife
MET
$61.9B
| $127M | 0.02% |
1,613,700
-95,700
| -6% | -$7.57M |
|
712
Norwegian Cruise Line
NCLH
$8.98B
| $127M | 0.02% |
5,706,941
-2,675,691
| -32% | -$56.5M |
|
713
LPL Financial
LPLA
$29.5B
| $127M | 0.02% |
356,446
-27,905
| -7% | -$9.87M |
|
714
Alaska Air
ALK
$5.3B
| $127M | 0.02% |
2,528,634
-710,965
| -22% | -$32.9M |
|
715
Illinois Tool Works
ITW
$82.9B
| $127M | 0.02% |
515,841
+451,749
| +705% | +$113M |
|
716
Nutanix
NTNX
$18.4B
| $127M | 0.02% |
2,455,558
+2,430,339
| +9,637% | +$148M |
|
717
PUT
D-Wave Quantum Inc. Common Stock
QBTS
$7.78B
| $125M | 0.02% |
4,798,500
+98,800
| +2% | +$2.88M |
|
718
PUT
Affirm
AFRM
$26.2B
| $125M | 0.02% |
1,683,100
-1,341,600
| -44% | -$96.6M |
|
719
PUT
Warner Bros
WBD
$69.6B
| $125M | 0.02% |
4,345,100
+1,469,600
| +51% | +$34.3M |
|
720
PUT
Duolingo
DUOL
$6.74B
| $125M | 0.02% |
713,200
-91,700
| -11% | -$21.6M |
|
721
Advanced Drainage Systems
WMS
$11.3B
| $125M | 0.02% |
862,695
+241,493
| +39% | +$35M |
|
722
Liberty Media Series C
FWONK
$26B
| $125M | 0.02% |
1,264,319
+516,131
| +69% | +$50.7M |
|
723
Sony
SONY
$138B
| $124M | 0.02% |
4,860,362
+3,329,430
| +217% | +$93.5M |
|
724
PUT
Expedia Group
EXPE
$39.4B
| $124M | 0.02% |
436,700
+38,500
| +10% | +$9.51M |
|
725
IQVIA
IQV
$39.8B
| $124M | 0.02% |
547,940
+469,052
| +595% | +$102M |
|
Similar funds
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.