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 | |
|---|---|---|---|---|---|---|
1726
Arch Capital
ACGL
$33.7B
| $35.7M | 0.01% |
372,530
+264,773
| +246% | +$24.2M |
|
1727
SLB Ltd
SLB
$79.8B
| $35.7M | 0.01% |
930,972
-1,351,543
| -59% | -$49M |
|
1728
Schwab Emerging Markets Equity ETF
SCHE
$12.8B
| $35.7M | 0.01% |
1,088,577
+1,061,978
| +3,993% | +$35.4M |
|
1729
CALL
Williams Companies
WMB
$92B
| $35.6M | 0.01% |
592,700
-121,600
| -17% | -$7.35M |
|
1730
PUT
Travelers Companies
TRV
$77.2B
| $35.6M | 0.01% |
122,800
-9,900
| -7% | -$2.79M |
|
1731
SLM Corp
SLM
$5.27B
| $35.5M | 0.01% |
1,310,270
+638,522
| +95% | +$17.5M |
|
1732
GitLab
GTLB
$7.2B
| $35.5M | 0.01% |
944,582
+3,110
| +0.3% | +$135K |
|
1733
Nice
NICE
$5.99B
| $35.4M | 0.01% |
313,059
+130,105
| +71% | +$15.7M |
|
1734
CALL
O'Reilly Automotive
ORLY
$73.7B
| $35.3M | 0.01% |
387,500
-145,300
| -27% | -$14.2M |
|
1735
CALL
GSK
GSK
$99.2B
| $35.3M | 0.01% |
720,100
-451,900
| -39% | -$21.1M |
|
1736
PUT
Synchrony
SYF
$26.4B
| $35.3M | 0.01% |
423,200
+146,700
| +53% | +$11.2M |
|
1737
Welltower
WELL
$170B
| $35.3M | 0.01% |
190,187
-50,055
| -21% | -$9.35M |
|
1738
CALL
APA Corp
APA
$14.2B
| $35.2M | 0.01% |
1,440,024
+112,140
| +8% | +$2.71M |
|
1739
CALL
Oscar Health
OSCR
$10.1B
| $35.2M | 0.01% |
2,446,600
-65,500
| -3% | -$1.13M |
|
1740
RH
RH
$3.44B
| $35.2M | 0.01% |
196,205
+118,535
| +153% | +$20.3M |
|
1741
PUT
Kinder Morgan
KMI
$73.1B
| $35.1M | 0.01% |
1,276,300
-303,800
| -19% | -$8.21M |
|
1742
CALL
Fastenal
FAST
$58.5B
| $35M | 0.01% |
873,100
+334,400
| +62% | +$14.1M |
|
1743
PUT
BHP
BHP
$220B
| $35M | 0.01% |
579,000
+397,900
| +220% | +$22.6M |
|
1744
Molina Healthcare
MOH
$11.1B
| $34.9M | 0.01% |
201,286
+189,488
| +1,606% | +$31.1M |
|
1745
Toro Company
TTC
$9.37B
| $34.9M | 0.01% |
443,409
-22,622
| -5% | -$1.67M |
|
1746
CALL
CF Industries
CF
$17.9B
| $34.9M | 0.01% |
451,200
+139,900
| +45% | +$11.5M |
|
1747
CALL
Global X Silver Miners ETF NEW
SIL
$4.79B
| $34.7M | 0.01% |
416,000
+142,100
| +52% | +$10.5M |
|
1748
CALL
Maplebear
CART
$11.3B
| $34.7M | 0.01% |
772,100
+226,900
| +42% | +$9.29M |
|
|
BULL
1749
CALL
Webull Corp
BULL
$4.28B
| $34.7M | 0.01% |
4,463,200
-325,200
| -7% | -$3.27M |
|
1750
Agnico Eagle Mines
AEM
$94.4B
| $34.6M | 0.01% |
203,892
+45,911
| +29% | +$7.72M |
|
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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.