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 | |
|---|---|---|---|---|---|---|
5751
CALL
Vanguard Russell 2000 ETF
VTWO
$17.5B
| $2.13M | ﹤0.01% |
21,400
+2,700
| +14% | +$268K |
|
5752
PUT
Regions Financial
RF
$27B
| $2.13M | ﹤0.01% |
78,500
-27,800
| -26% | -$710K |
|
|
CSIO
5753
Cohen & Steers Infrastructure Opportunities Active ETF
CSIO
$46.4M
| $2.13M | ﹤0.01% |
+84,900
| New | +$2.13M |
|
5754
Inhibrx
INBX
$1.35B
| $2.13M | ﹤0.01% |
26,900
-30,294
| -53% | -$2.06M |
|
5755
FreightCar America
RAIL
$243M
| $2.12M | ﹤0.01% |
191,604
+106,873
| +126% | +$982K |
|
5756
KT
KT
$9.05B
| $2.12M | ﹤0.01% |
111,786
-339,020
| -75% | -$6.32M |
|
5757
PUT
Direxion Daily NVDA Bear 1X ETF
NVDD
$19.4M
| $2.12M | ﹤0.01% |
+55,270
| New | +$2.15M |
|
5758
GDS Holdings
GDS
$7.09B
| $2.12M | ﹤0.01% |
60,674
-458,710
| -88% | -$15.9M |
|
|
SEPN
5759
Septerna Inc
SEPN
$2.06B
| $2.12M | ﹤0.01% |
+75,945
| New | +$1.81M |
|
5760
CALL
NMI Holdings
NMIH
$3.43B
| $2.12M | ﹤0.01% |
51,900
+32,900
| +173% | +$1.24M |
|
|
ARDT
5761
Ardent Health
ARDT
$1.54B
| $2.12M | ﹤0.01% |
+239,632
| New | +$2.77M |
|
5762
CALL
Apple Hospitality REIT
APLE
$3.76B
| $2.12M | ﹤0.01% |
178,500
+25,200
| +16% | +$296K |
|
5763
CALL
Cooper Companies
COO
$14.6B
| $2.11M | ﹤0.01% |
25,800
-35,200
| -58% | -$2.63M |
|
5764
Independent Bank Corp
IBCP
$852M
| $2.11M | ﹤0.01% |
+64,974
| New | +$2.09M |
|
|
OGG
5765
Osisko Gold Group
OGG
$856M
| $2.11M | ﹤0.01% |
605,522
-196,965
| -25% | -$677K |
|
5766
PUT
Sigma Lithium
SGML
$1.28B
| $2.11M | ﹤0.01% |
160,200
-198,700
| -55% | -$1.71M |
|
5767
PUT
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
| $2.11M | ﹤0.01% |
17,700
-110,600
| -86% | -$13.2M |
|
5768
PUT
Direxion Daily Small Cap Bear 3x ETF
TZA
$209M
| $2.11M | ﹤0.01% |
28,110
-200,760
| -88% | -$15.5M |
|
5769
NB Bancorp
NBBK
$1B
| $2.11M | ﹤0.01% |
106,457
+47,130
| +79% | +$897K |
|
5770
CALL
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.41B
| $2.11M | ﹤0.01% |
67,100
-40,700
| -38% | -$1.28M |
|
5771
CALL
Nabors Industries
NBR
$1.43B
| $2.11M | ﹤0.01% |
38,800
-31,100
| -44% | -$1.52M |
|
|
WDAF
5772
WisdomTree Asia Defense Fund
WDAF
$23.8M
| $2.1M | ﹤0.01% |
73,840
-29,397
| -28% | -$868K |
|
5773
3D Systems Corp
DDD
$605M
| $2.1M | ﹤0.01% |
1,188,245
-1,327,293
| -53% | -$3.23M |
|
5774
PUT
Xenon Pharmaceuticals
XENE
$6.03B
| $2.1M | ﹤0.01% |
46,900
+17,600
| +60% | +$739K |
|
|
5775
PUT
Nabors Industries
NBR
$1.43B
| $2.1M | ﹤0.01% |
38,700
+3,800
| +11% | +$185K |
|
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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.