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 | |
|---|---|---|---|---|---|---|
6801
MBIA
MBI
$248M
| $1.3M | ﹤0.01% |
181,211
-292,729
| -62% | -$2.12M |
|
|
FRMM
6802
CALL
Forum Markets
FRMM
$77.4M
| $1.3M | ﹤0.01% |
264,510
+185,180
| +233% | +$2.61M |
|
6803
CALL
Equitable Holdings
EQH
$14B
| $1.3M | ﹤0.01% |
27,200
+8,100
| +42% | +$384K |
|
6804
CALL
SBA Communications
SBAC
$19.5B
| $1.3M | ﹤0.01% |
6,700
-17,600
| -72% | -$3.4M |
|
6805
CALL
Roundhill N-100 0DTE Covered Call Strategy ETF
QDTE
$958M
| $1.3M | ﹤0.01% |
42,000
+4,900
| +13% | +$171K |
|
6806
CION Investment
CION
$366M
| $1.29M | ﹤0.01% |
+133,837
| New | +$1.29M |
|
6807
PUT
EnerSys
ENS
$7.16B
| $1.29M | ﹤0.01% |
8,800
+4,100
| +87% | +$548K |
|
6808
PUT
Brown & Brown
BRO
$23.6B
| $1.29M | ﹤0.01% |
16,200
+1,500
| +10% | +$125K |
|
6809
PUT
LKQ Corp
LKQ
$6.42B
| $1.29M | ﹤0.01% |
42,700
-56,400
| -57% | -$1.7M |
|
|
LENZ
6810
LENZ Therapeutics
LENZ
$151M
| $1.29M | ﹤0.01% |
80,574
-318,856
| -80% | -$9.29M |
|
6811
PUT
Columbia Sportswear
COLM
$2.96B
| $1.29M | ﹤0.01% |
23,400
-13,500
| -37% | -$721K |
|
6812
CALL
Vertex
VERX
$2.13B
| $1.29M | ﹤0.01% |
64,500
-5,600
| -8% | -$121K |
|
6813
PUT
Supernus Pharmaceuticals
SUPN
$2.84B
| $1.29M | ﹤0.01% |
+25,900
| New | +$1.26M |
|
6814
CALL
Morgan Stanley Direct Lending Fund
MSDL
$1.29B
| $1.29M | ﹤0.01% |
78,100
+49,600
| +174% | +$839K |
|
6815
Chemours
CC
$2.31B
| $1.29M | ﹤0.01% |
+109,155
| New | +$1.4M |
|
6816
CALL
State Street SPDR S&P Semiconductor ETF
XSD
$2.78B
| $1.29M | ﹤0.01% |
4,000
-5,400
| -57% | -$1.78M |
|
6817
CALL
Coursera
COUR
$1.51B
| $1.29M | ﹤0.01% |
174,600
+6,800
| +4% | +$59.2K |
|
6818
Diodes
DIOD
$4.57B
| $1.28M | ﹤0.01% |
26,036
-31,687
| -55% | -$1.6M |
|
6819
CALL
ProShares UltraShort Bloomberg Crude Oil
SCO
$655M
| $1.28M | ﹤0.01% |
16,375
-5,775
| -26% | -$435K |
|
6820
Touchstone Strategic Income Opportunities ETF
SIO
$278M
| $1.28M | ﹤0.01% |
49,469
-8,130
| -14% | -$214K |
|
6821
CALL
ProShares Ultra Russell2000
UWM
$260M
| $1.28M | ﹤0.01% |
27,300
-21,700
| -44% | -$1.03M |
|
6822
CALL
Ardelyx
ARDX
$1.01B
| $1.28M | ﹤0.01% |
220,100
+34,100
| +18% | +$190K |
|
6823
PUT
Apple Hospitality REIT
APLE
$3.78B
| $1.28M | ﹤0.01% |
108,200
-83,200
| -43% | -$976K |
|
6824
Franklin FTSE Eurozone ETF
FLEU
$73.5M
| $1.28M | ﹤0.01% |
+38,549
| New | +$1.25M |
|
6825
CALL
Glacier Bancorp
GBCI
$6.39B
| $1.28M | ﹤0.01% |
29,100
+12,800
| +79% | +$561K |
|
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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.