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 | |
|---|---|---|---|---|---|---|
601
PUT
Rivian
RIVN
$22.9B
| $158M | 0.02% |
7,997,600
+2,426,000
| +44% | +$38.5M |
|
602
CALL
Philip Morris
PM
$294B
| $157M | 0.02% |
981,800
-79,900
| -8% | -$12.4M |
|
603
CALL
AutoZone
AZO
$49.6B
| $157M | 0.02% |
46,400
+1,300
| +3% | +$4.91M |
|
604
CALL
ProShares Ultra Silver
AGQ
$1.41B
| $157M | 0.02% |
1,010,100
+66,800
| +7% | +$6.89M |
|
605
Wyndham Hotels & Resorts
WH
$5.51B
| $157M | 0.02% |
2,071,797
+2,001,449
| +2,845% | +$151M |
|
606
Pool Corp
POOL
$7.29B
| $156M | 0.02% |
683,279
+134,314
| +24% | +$34.9M |
|
607
CALL
nVent Electric
NVT
$27.5B
| $156M | 0.02% |
1,531,800
+1,199,600
| +361% | +$125M |
|
608
Aon
AON
$75.7B
| $156M | 0.02% |
442,286
-465,334
| -51% | -$162M |
|
609
CALL
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$3.89B
| $156M | 0.02% |
5,318,400
-1,305,900
| -20% | -$39.4M |
|
610
CALL
Applied Digital
APLD
$8.81B
| $156M | 0.02% |
6,348,100
+1,228,500
| +24% | +$35.4M |
|
611
Huntington Bancshares
HBAN
$35.9B
| $155M | 0.02% |
8,959,691
-13,766,463
| -61% | -$226M |
|
612
CALL
Expedia Group
EXPE
$39.4B
| $155M | 0.02% |
548,500
+48,200
| +10% | +$11.9M |
|
613
PUT
United States Oil Fund
USO
$1.77B
| $155M | 0.02% |
2,246,100
-159,200
| -7% | -$11.2M |
|
614
Sun Communities
SUI
$14.6B
| $155M | 0.02% |
1,253,123
-114,353
| -8% | -$14.3M |
|
615
CALL
Wynn Resorts
WYNN
$10.5B
| $154M | 0.02% |
1,283,300
-182,400
| -12% | -$22.6M |
|
|
XYZ
616
CALL
Block Inc
XYZ
$49.9B
| $154M | 0.02% |
2,369,700
-1,002,700
| -30% | -$69.2M |
|
617
CALL
Cipher Digital
CIFR
$6.9B
| $154M | 0.02% |
10,446,600
+4,853,200
| +87% | +$85.7M |
|
618
CALL
Zscaler
ZS
$30.4B
| $154M | 0.02% |
684,000
-152,100
| -18% | -$42.9M |
|
619
PUT
T-Mobile US
TMUS
$197B
| $154M | 0.02% |
757,200
+218,100
| +40% | +$46.2M |
|
620
CALL
JD.com
JD
$39.6B
| $154M | 0.02% |
5,350,800
-3,244,000
| -38% | -$101M |
|
|
ECHO
621
PUT
EchoStar
ECHO
$26.6B
| $153M | 0.02% |
1,406,700
-1,522,355
| -52% | -$124M |
|
622
CALL
TeraWulf
WULF
$8.14B
| $153M | 0.02% |
13,306,500
+2,121,300
| +19% | +$28.4M |
|
|
MRSH
623
Marsh
MRSH
$90B
| $153M | 0.02% |
822,371
+430,842
| +110% | +$80.5M |
|
624
First Horizon
FHN
$12.3B
| $151M | 0.02% |
6,338,457
-4,706,505
| -43% | -$105M |
|
625
Moody's
MCO
$84.6B
| $151M | 0.02% |
295,473
-586,662
| -67% | -$286M |
|
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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.