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 | |
|---|---|---|---|---|---|---|
326
PUT
Baidu
BIDU
$35.4B
| $311M | 0.05% |
2,376,700
-401,400
| -14% | -$49.8M |
|
327
CALL
Abbott
ABT
$188B
| $308M | 0.05% |
2,458,000
+581,800
| +31% | +$74.1M |
|
328
Penumbra
PEN
$12.8B
| $308M | 0.05% |
990,275
+19,277
| +2% | +$5.32M |
|
329
VanEck Gold Miners ETF
GDX
$28B
| $308M | 0.05% |
3,589,538
+3,441,543
| +2,325% | +$272M |
|
330
CALL
Intuitive Surgical
ISRG
$141B
| $307M | 0.05% |
542,000
+197,200
| +57% | +$105M |
|
|
CYBR
331
DELISTED
CyberArk
CYBR
| $305M | 0.05% |
683,106
-273,654
| -29% | -$132M |
|
332
CALL
Super Micro Computer
SMCI
$23.8B
| $304M | 0.05% |
10,380,000
-1,278,300
| -11% | -$52.6M |
|
|
SNDK
333
PUT
Sandisk
SNDK
$199B
| $302M | 0.05% |
1,272,345
+141,986
| +13% | +$28.4M |
|
334
SoFi Technologies
SOFI
$23.1B
| $302M | 0.05% |
11,528,450
+8,078,885
| +234% | +$225M |
|
335
Trane Technologies
TT
$108B
| $301M | 0.05% |
774,593
+716,116
| +1,225% | +$296M |
|
336
Lennox International
LII
$15B
| $301M | 0.05% |
620,435
+342,247
| +123% | +$171M |
|
337
CALL
Synopsys
SNPS
$79.2B
| $300M | 0.05% |
638,525
+47,615
| +8% | +$21.2M |
|
338
Blackstone
BX
$109B
| $299M | 0.04% |
1,941,396
+1,488,669
| +329% | +$226M |
|
339
Coca-Cola
KO
$371B
| $299M | 0.04% |
4,279,220
-1,128,958
| -21% | -$78.7M |
|
340
PUT
Intuit
INTU
$90.3B
| $299M | 0.04% |
451,100
+14,100
| +3% | +$9.32M |
|
|
341
PUT
Blackstone
BX
$109B
| $298M | 0.04% |
1,935,900
-622,900
| -24% | -$94.7M |
|
342
PUT
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.7B
| $298M | 0.04% |
2,700,600
-8,749,000
| -76% | -$973M |
|
343
CALL
SLB Ltd
SLB
$78.7B
| $297M | 0.04% |
7,744,000
+5,557,102
| +254% | +$201M |
|
|
CRCL
344
CALL
Circle Internet Group
CRCL
$17.8B
| $297M | 0.04% |
3,742,600
+1,480,000
| +65% | +$153M |
|
345
CALL
Airbnb
ABNB
$109B
| $295M | 0.04% |
2,176,800
+638,600
| +42% | +$79.5M |
|
346
argenx
ARGX
$54.3B
| $295M | 0.04% |
350,851
-362,708
| -51% | -$310M |
|
347
Honeywell
HON
$72.7B
| $295M | 0.04% |
1,511,753
+58,093
| +4% | +$11.4M |
|
348
CALL
Cameco
CCJ
$43.3B
| $294M | 0.04% |
3,208,100
+53,500
| +2% | +$4.82M |
|
349
PUT
CVS Health
CVS
$120B
| $293M | 0.04% |
3,688,700
-456,200
| -11% | -$36M |
|
350
CALL
Datadog
DDOG
$89.7B
| $293M | 0.04% |
2,150,900
+390,700
| +22% | +$61.7M |
|
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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.