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 | |
|---|---|---|---|---|---|---|
3226
Ubiquiti
UI
$34.7B
| $9.96M | ﹤0.01% |
18,006
+5,626
| +45% | +$3.56M |
|
3227
Lloyds Banking Group
LYG
$90.1B
| $9.96M | ﹤0.01% |
1,879,290
+807,855
| +75% | +$3.91M |
|
3228
PUT
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$273M
| $9.96M | ﹤0.01% |
277,200
+198,008
| +250% | +$9.92M |
|
3229
Shell
SHEL
$250B
| $9.96M | ﹤0.01% |
135,507
-2,171,276
| -94% | -$160M |
|
3230
CALL
Annaly Capital Management
NLY
$17.6B
| $9.95M | ﹤0.01% |
444,800
-206,900
| -32% | -$4.5M |
|
|
DAY
3231
DELISTED
Dayforce
DAY
| $9.95M | ﹤0.01% |
143,806
-323,213
| -69% | -$22.2M |
|
|
CWAN
3232
PUT
DELISTED
Clearwater Analytics
CWAN
| $9.94M | ﹤0.01% |
411,900
+311,784
| +311% | +$6.24M |
|
3233
United Natural Foods
UNFI
$2.93B
| $9.93M | ﹤0.01% |
295,054
+97,004
| +49% | +$3.61M |
|
3234
CALL
Polaris
PII
$3.95B
| $9.92M | ﹤0.01% |
156,900
-60,600
| -28% | -$3.99M |
|
3235
Invesco Solar ETF
TAN
$1.36B
| $9.91M | ﹤0.01% |
+201,829
| New | +$9.72M |
|
3236
PUT
Eldorado Gold
EGO
$10.4B
| $9.91M | ﹤0.01% |
275,800
-163,300
| -37% | -$4.89M |
|
3237
PUT
B2Gold
BTG
$6.79B
| $9.9M | ﹤0.01% |
2,196,000
+786,900
| +56% | +$3.67M |
|
3238
iShares Self-Driving EV and Tech ETF
IDRV
$139M
| $9.89M | ﹤0.01% |
260,833
+146,996
| +129% | +$5.57M |
|
3239
PUT
T-Rex 2X Long NVIDIA Daily Target ETF
NVDX
$472M
| $9.89M | ﹤0.01% |
577,700
+227,500
| +65% | +$4.17M |
|
|
MDLN
3240
PUT
Medline Inc
MDLN
$31.4B
| $9.89M | ﹤0.01% |
+235,400
| New | +$9.94M |
|
3241
Marcus & Millichap
MMI
$1.2B
| $9.87M | ﹤0.01% |
361,686
+308,960
| +586% | +$8.94M |
|
3242
PUT
Flutter Entertainment
FLUT
$17.6B
| $9.87M | ﹤0.01% |
45,900
-4,400
| -9% | -$990K |
|
|
CDNL
3243
Cardinal Infrastructure Group
CDNL
$805M
| $9.86M | ﹤0.01% |
+407,949
| New | +$10.1M |
|
3244
CALL
Revolution Medicines
RVMD
$43.7B
| $9.86M | ﹤0.01% |
123,800
+68,500
| +124% | +$4.49M |
|
|
FRMI
3245
Fermi Inc
FRMI
$4.08B
| $9.86M | ﹤0.01% |
+1,232,175
| New | +$24M |
|
3246
PUT
Parker-Hannifin
PH
$133B
| $9.84M | ﹤0.01% |
11,200
-7,100
| -39% | -$5.81M |
|
|
Q
3247
PUT
Qnity Electronics Inc
Q
$29.8B
| $9.83M | ﹤0.01% |
+120,350
| New | +$10.2M |
|
3248
CALL
Autoliv
ALV
$8.94B
| $9.82M | ﹤0.01% |
82,700
+40,000
| +94% | +$4.78M |
|
3249
CALL
ScottsMiracle-Gro
SMG
$3.55B
| $9.81M | ﹤0.01% |
168,200
+22,100
| +15% | +$1.24M |
|
3250
Exelon
EXC
$47.2B
| $9.81M | ﹤0.01% |
225,105
-2,011,115
| -90% | -$91.8M |
|
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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.