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 | |
|---|---|---|---|---|---|---|
|
HNGE
4776
CALL
Hinge Health
HNGE
$7.14B
| $3.65M | ﹤0.01% |
78,500
-139,300
| -64% | -$6.71M |
|
4777
State Street SPDR MSCI EAFE Fossil Fuel Reserves Free ETF
EFAX
$518M
| $3.64M | ﹤0.01% |
72,213
+32,539
| +82% | +$1.62M |
|
4778
Frontdoor
FTDR
$5.96B
| $3.64M | ﹤0.01% |
63,159
-60,537
| -49% | -$3.56M |
|
|
ARI
4779
Apollo Commercial Real Estate
ARI
$876M
| $3.64M | ﹤0.01% |
376,365
-358,093
| -49% | -$3.58M |
|
4780
CALL
Gaming and Leisure Properties
GLPI
$12.7B
| $3.64M | ﹤0.01% |
81,500
-800
| -1% | -$35.5K |
|
4781
PUT
Rithm Capital
RITM
$5.79B
| $3.64M | ﹤0.01% |
334,100
+200,900
| +151% | +$2.22M |
|
4782
Alamos Gold
AGI
$14B
| $3.64M | ﹤0.01% |
94,379
+61,619
| +188% | +$2.15M |
|
4783
Invesco MSCI Global Timber ETF
CUT
$33.4M
| $3.64M | ﹤0.01% |
125,158
+94,415
| +307% | +$2.71M |
|
4784
CALL
Credit Acceptance
CACC
$6.1B
| $3.64M | ﹤0.01% |
8,200
-16,500
| -67% | -$7.65M |
|
4785
Pennant Group
PNTG
$1.37B
| $3.63M | ﹤0.01% |
128,956
-94,922
| -42% | -$2.53M |
|
4786
Aclaris Therapeutics
ACRS
$851M
| $3.63M | ﹤0.01% |
1,205,281
-227,396
| -16% | -$575K |
|
4787
CALL
Sigma Lithium
SGML
$1.34B
| $3.63M | ﹤0.01% |
275,000
+17,600
| +7% | +$152K |
|
|
EMA
4788
Emera Inc
EMA
$15.8B
| $3.63M | ﹤0.01% |
73,655
+12,660
| +21% | +$612K |
|
4789
CALL
Arbor Realty Trust
ABR
$950M
| $3.63M | ﹤0.01% |
467,300
-248,300
| -35% | -$2.43M |
|
4790
Marcus Corp
MCS
$925M
| $3.62M | ﹤0.01% |
233,616
+110,417
| +90% | +$1.64M |
|
4791
Cogent Communications
CCOI
$579M
| $3.6M | ﹤0.01% |
167,124
+85,219
| +104% | +$2.52M |
|
4792
Ero Copper
ERO
$3.53B
| $3.6M | ﹤0.01% |
127,308
+21,528
| +20% | +$501K |
|
4793
Opko Health
OPK
$1.03B
| $3.6M | ﹤0.01% |
2,857,433
+2,577,558
| +921% | +$3.59M |
|
4794
CALL
Urban Outfitters
URBN
$6.66B
| $3.6M | ﹤0.01% |
47,800
-37,000
| -44% | -$2.62M |
|
4795
OFG Bancorp
OFG
$2.28B
| $3.6M | ﹤0.01% |
87,749
+7,453
| +9% | +$305K |
|
4796
PUT
Global X MSCI Argentina ETF
ARGT
$808M
| $3.59M | ﹤0.01% |
39,300
-10,800
| -22% | -$922K |
|
4797
Amprius Technologies
AMPX
$1.83B
| $3.59M | ﹤0.01% |
454,854
-2,051,945
| -82% | -$23.5M |
|
|
SERV
4798
PUT
Serve Robotics
SERV
$433M
| $3.59M | ﹤0.01% |
345,700
-318,400
| -48% | -$3.82M |
|
4799
CALL
Primoris Services
PRIM
$4.48B
| $3.59M | ﹤0.01% |
28,900
-36,700
| -56% | -$4.79M |
|
|
PCI
4800
PGIM Corporate Bond 5-10 Year ETF
PCI
$528M
| $3.59M | ﹤0.01% |
70,750
-328,591
| -82% | -$16.7M |
|
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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.