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 | |
|---|---|---|---|---|---|---|
351
CALL
Analog Devices
ADI
$191B
| $292M | 0.04% |
1,076,800
+464,400
| +76% | +$117M |
|
352
Jack Henry & Associates
JKHY
$10.8B
| $292M | 0.04% |
1,599,660
+1,347,742
| +535% | +$225M |
|
353
Advanced Micro Devices
AMD
$792B
| $292M | 0.04% |
1,362,571
+93,966
| +7% | +$21.1M |
|
354
CALL
Seagate
STX
$201B
| $290M | 0.04% |
1,053,800
-362,000
| -26% | -$94M |
|
355
Snowflake
SNOW
$116B
| $290M | 0.04% |
1,321,340
-107,873
| -8% | -$26.3M |
|
356
PUT
Arista Networks
ANET
$259B
| $289M | 0.04% |
2,207,700
+175,700
| +9% | +$24.2M |
|
357
CALL
Vanguard S&P 500 ETF
VOO
$1.03T
| $288M | 0.04% |
459,800
-269,400
| -37% | -$167M |
|
358
CVS Health
CVS
$120B
| $286M | 0.04% |
3,601,353
+384,176
| +12% | +$30.3M |
|
359
MSCI
MSCI
$40.9B
| $285M | 0.04% |
496,876
+467,752
| +1,606% | +$262M |
|
360
CALL
State Street Financial Select Sector SPDR ETF
XLF
$58.9B
| $285M | 0.04% |
5,198,100
-1,038,300
| -17% | -$55.3M |
|
361
CALL
RTX Corp
RTX
$298B
| $283M | 0.04% |
1,543,100
+152,200
| +11% | +$26.4M |
|
362
Microchip Technology
MCHP
$44.8B
| $283M | 0.04% |
4,439,948
+887,585
| +25% | +$54.7M |
|
|
363
CALL
CVS Health
CVS
$120B
| $283M | 0.04% |
3,561,000
-2,964,800
| -45% | -$234M |
|
364
Intuit
INTU
$90.3B
| $283M | 0.04% |
426,594
+369,042
| +641% | +$244M |
|
365
Automatic Data Processing
ADP
$106B
| $282M | 0.04% |
1,095,784
+561,832
| +105% | +$150M |
|
|
CRCL
366
PUT
Circle Internet Group
CRCL
$17.8B
| $282M | 0.04% |
3,552,500
+1,007,200
| +40% | +$104M |
|
367
CALL
American Express
AXP
$229B
| $279M | 0.04% |
755,400
-145,700
| -16% | -$52.1M |
|
368
PUT
iShares 7-10 Year Treasury Bond ETF
IEF
$47.2B
| $279M | 0.04% |
2,906,200
+2,634,000
| +968% | +$255M |
|
369
CALL
iShares China Large-Cap ETF
FXI
$4.21B
| $277M | 0.04% |
7,232,500
-5,998,300
| -45% | -$238M |
|
370
Twilio
TWLO
$38.4B
| $276M | 0.04% |
1,940,657
+1,523,932
| +366% | +$189M |
|
371
PG&E
PCG
$38.1B
| $275M | 0.04% |
17,139,344
+11,840,728
| +223% | +$189M |
|
|
372
PUT
Delta Air Lines
DAL
$59.1B
| $273M | 0.04% |
3,934,000
-1,458,000
| -27% | -$91.1M |
|
373
CALL
Unity
U
$19B
| $268M | 0.04% |
6,066,900
-3,029,400
| -33% | -$123M |
|
374
CALL
Amgen
AMGN
$224B
| $268M | 0.04% |
818,000
-493,400
| -38% | -$157M |
|
375
Keysight
KEYS
$60.9B
| $268M | 0.04% |
1,317,501
+1,281,814
| +3,592% | +$238M |
|
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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.