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 | |
|---|---|---|---|---|---|---|
676
lululemon athletica
LULU
$13.6B
| $137M | 0.02% |
660,266
-360,367
| -35% | -$65.3M |
|
677
PUT
Dollar Tree
DLTR
$24.9B
| $137M | 0.02% |
1,111,500
+247,300
| +29% | +$26.5M |
|
678
PUT
iShares Semiconductor ETF
SOXX
$46.6B
| $136M | 0.02% |
452,900
-535,000
| -54% | -$158M |
|
679
Verizon
VZ
$200B
| $136M | 0.02% |
3,347,969
+1,954,791
| +140% | +$79.3M |
|
680
PUT
Sea Limited
SE
$75.5B
| $136M | 0.02% |
1,067,800
-281,500
| -21% | -$41.7M |
|
681
Valero Energy
VLO
$98.7B
| $136M | 0.02% |
834,550
+359,420
| +76% | +$60.9M |
|
682
CALL
Direxion Daily Financial Bull 3x ETF
FAS
$2.5B
| $136M | 0.02% |
806,500
-14,500
| -2% | -$2.41M |
|
|
AXON
683
CALL
Axon Enterprise
AXON
$50B
| $135M | 0.02% |
238,500
+34,200
| +17% | +$21.2M |
|
684
Akamai
AKAM
$18B
| $135M | 0.02% |
1,543,936
+150,418
| +11% | +$12.4M |
|
685
Pfizer
PFE
$153B
| $135M | 0.02% |
5,407,376
-4,879,551
| -47% | -$123M |
|
686
CALL
American Airlines Group
AAL
$9.97B
| $134M | 0.02% |
8,764,000
+1,619,400
| +23% | +$21.8M |
|
687
CALL
United Rentals
URI
$69.7B
| $134M | 0.02% |
165,000
+36,500
| +28% | +$31.7M |
|
688
NRG Energy
NRG
$25.2B
| $133M | 0.02% |
836,365
+383,631
| +85% | +$63.5M |
|
689
PUT
Alcoa
AA
$13.1B
| $132M | 0.02% |
2,490,200
+216,400
| +10% | +$8.85M |
|
690
PUT
eBay
EBAY
$46.5B
| $132M | 0.02% |
1,516,500
+75,700
| +5% | +$6.55M |
|
691
PUT
Trade Desk
TTD
$6.84B
| $132M | 0.02% |
3,474,900
-189,600
| -5% | -$8.4M |
|
692
Builders FirstSource
BLDR
$7.91B
| $132M | 0.02% |
1,280,988
+1,010,561
| +374% | +$114M |
|
693
PUT
Moderna
MRNA
$25.4B
| $132M | 0.02% |
4,459,200
-1,565,700
| -26% | -$42.5M |
|
694
PUT
Roku
ROKU
$22.9B
| $131M | 0.02% |
1,209,600
+232,900
| +24% | +$23.6M |
|
695
PUT
Analog Devices
ADI
$186B
| $131M | 0.02% |
482,800
+48,000
| +11% | +$12.1M |
|
|
696
CALL
Dollar Tree
DLTR
$24.9B
| $130M | 0.02% |
1,059,100
+111,200
| +12% | +$11.9M |
|
697
CALL
United States Oil Fund
USO
$1.77B
| $130M | 0.02% |
1,882,900
-866,600
| -32% | -$61.1M |
|
698
Credo Technology Group
CRDO
$49.6B
| $130M | 0.02% |
902,999
+637,776
| +240% | +$98.1M |
|
|
HUT
699
CALL
Hut 8
HUT
$10.2B
| $130M | 0.02% |
2,822,400
+434,820
| +18% | +$19.2M |
|
700
CALL
Agnico Eagle Mines
AEM
$91.3B
| $130M | 0.02% |
764,600
-362,500
| -32% | -$60.9M |
|
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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.