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 | |
|---|---|---|---|---|---|---|
3001
Groupon
GRPN
$875M
| $11.9M | ﹤0.01% |
674,879
+146,078
| +28% | +$2.75M |
|
3002
Enova International
ENVA
$6.61B
| $11.9M | ﹤0.01% |
75,511
+71,645
| +1,853% | +$9.33M |
|
3003
PUT
Bunge Global
BG
$21.8B
| $11.9M | ﹤0.01% |
133,200
-70,000
| -34% | -$6.45M |
|
3004
CALL
ASP Isotopes
ASPI
$538M
| $11.9M | ﹤0.01% |
2,216,900
+882,900
| +66% | +$7.02M |
|
3005
Crinetics Pharmaceuticals
CRNX
$8.99B
| $11.9M | ﹤0.01% |
254,720
-629,787
| -71% | -$28M |
|
3006
PUT
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$534M
| $11.9M | ﹤0.01% |
57,400
-31,500
| -35% | -$5.4M |
|
3007
Acushnet Holdings
GOLF
$5.26B
| $11.9M | ﹤0.01% |
148,526
+35,101
| +31% | +$2.85M |
|
3008
Mueller Water Products
MWA
$3.99B
| $11.9M | ﹤0.01% |
497,535
-307,605
| -38% | -$7.62M |
|
3009
PUT
Mettler-Toledo International
MTD
$28.4B
| $11.9M | ﹤0.01% |
8,500
-300
| -3% | -$419K |
|
3010
PUT
TripAdvisor
TRIP
$1.26B
| $11.8M | ﹤0.01% |
813,700
-60,100
| -7% | -$915K |
|
3011
CALL
ACM Research
ACMR
$5.6B
| $11.8M | ﹤0.01% |
299,800
+141,000
| +89% | +$5.25M |
|
3012
Snap-on
SNA
$20.9B
| $11.8M | ﹤0.01% |
34,281
+16,143
| +89% | +$5.52M |
|
3013
CALL
GeneDx Holdings
WGS
$2.33B
| $11.8M | ﹤0.01% |
90,800
-43,500
| -32% | -$5.97M |
|
3014
CALL
International Flavors & Fragrances
IFF
$21.5B
| $11.8M | ﹤0.01% |
175,200
+30,100
| +21% | +$1.95M |
|
3015
CALL
Noble Corp
NE
$7.2B
| $11.8M | ﹤0.01% |
417,400
-229,421
| -35% | -$6.78M |
|
3016
ATI
ATI
$31.1B
| $11.8M | ﹤0.01% |
102,702
-10,201
| -9% | -$994K |
|
|
CCCX
3017
CALL
DELISTED
Churchill Capital Corp X
CCCX
| $11.8M | ﹤0.01% |
754,900
+719,100
| +2,009% | +$12.1M |
|
3018
United States Copper Index Fund
CPER
$774M
| $11.8M | ﹤0.01% |
336,706
+214,820
| +176% | +$6.87M |
|
3019
CALL
SentinelOne
S
$7.92B
| $11.8M | ﹤0.01% |
784,000
+209,800
| +37% | +$3.44M |
|
3020
PUT
Enovix
ENVX
$963M
| $11.8M | ﹤0.01% |
1,607,600
-1,380,800
| -46% | -$13.4M |
|
3021
PUT
Roper Technologies
ROP
$39.5B
| $11.8M | ﹤0.01% |
26,400
+21,900
| +487% | +$10.1M |
|
3022
CALL
Green Plains
GPRE
$1.09B
| $11.7M | ﹤0.01% |
1,197,800
+211,700
| +21% | +$2.13M |
|
3023
PUT
Fluence Energy
FLNC
$2.43B
| $11.7M | ﹤0.01% |
593,100
+329,500
| +125% | +$6.21M |
|
3024
PUT
Tilray
TLRY
$643M
| $11.7M | ﹤0.01% |
1,298,980
+1,080,040
| +493% | +$13.2M |
|
|
NVMI
3025
CALL
Nova
NVMI
$13.3B
| $11.7M | ﹤0.01% |
35,700
-1,700
| -5% | -$547K |
|
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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.