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 | |
|---|---|---|---|---|---|---|
|
SCHW
201
Charles Schwab
SCHW
$186B
| $473M | 0.07% |
4,731,108
+827,128
| +21% | +$78.5M |
|
202
PUT
Pfizer
PFE
$152B
| $471M | 0.07% |
18,929,900
+4,429,400
| +31% | +$112M |
|
203
CALL
State Street Technology Select Sector SPDR ETF
XLK
$122B
| $468M | 0.07% |
3,248,800
-621,400
| -16% | -$89.7M |
|
204
PUT
Palo Alto Networks
PANW
$313B
| $467M | 0.07% |
2,532,600
-176,900
| -7% | -$35.7M |
|
205
PUT
iShares China Large-Cap ETF
FXI
$4.25B
| $466M | 0.07% |
12,173,400
-3,610,600
| -23% | -$143M |
|
|
206
CALL
AbbVie
ABBV
$442B
| $465M | 0.07% |
2,033,800
-375,300
| -16% | -$85.5M |
|
207
Cummins
CMI
$87.1B
| $462M | 0.07% |
904,544
+569,751
| +170% | +$266M |
|
208
PUT
Vertiv
VRT
$108B
| $462M | 0.07% |
2,849,800
+185,300
| +7% | +$32.2M |
|
209
CALL
Uber
UBER
$160B
| $459M | 0.07% |
5,621,800
-1,586,000
| -22% | -$143M |
|
210
PUT
PayPal
PYPL
$50.5B
| $459M | 0.07% |
7,855,700
+3,131,800
| +66% | +$203M |
|
211
Boston Scientific
BSX
$74.2B
| $455M | 0.07% |
4,775,618
-4,130,627
| -46% | -$405M |
|
212
PUT
Cisco
CSCO
$475B
| $455M | 0.07% |
5,906,900
+1,379,400
| +30% | +$102M |
|
213
PUT
GE Aerospace
GE
$382B
| $454M | 0.07% |
1,474,500
+163,800
| +12% | +$49.3M |
|
214
CALL
iShares MSCI Emerging Markets ETF
EEM
$29.9B
| $450M | 0.07% |
8,233,200
-3,986,500
| -33% | -$217M |
|
215
PUT
Target
TGT
$69.2B
| $450M | 0.07% |
4,601,800
-605,500
| -12% | -$55.8M |
|
216
CALL
Invesco S&P 500 Equal Weight ETF
RSP
$99.4B
| $448M | 0.07% |
2,337,700
-197,900
| -8% | -$37.6M |
|
217
PUT
Mercado Libre
MELI
$98.4B
| $448M | 0.07% |
222,200
+19,100
| +9% | +$40.1M |
|
218
PUT
Constellation Energy
CEG
$98.6B
| $445M | 0.07% |
1,260,600
+130,700
| +12% | +$47.5M |
|
219
Boeing
BA
$184B
| $444M | 0.07% |
2,042,883
+496,218
| +32% | +$102M |
|
220
O'Reilly Automotive
ORLY
$74.9B
| $443M | 0.07% |
4,859,980
+1,729,381
| +55% | +$169M |
|
221
PNC Financial Services
PNC
$101B
| $442M | 0.07% |
2,119,811
+1,188,307
| +128% | +$229M |
|
222
PUT
State Street SPDR S&P Biotech ETF
XBI
$10.4B
| $441M | 0.07% |
3,620,900
+809,800
| +29% | +$92.8M |
|
223
PUT
Spotify
SPOT
$103B
| $441M | 0.07% |
760,200
-309,100
| -29% | -$193M |
|
224
PUT
ExxonMobil
XOM
$657B
| $441M | 0.07% |
3,661,124
+71,700
| +2% | +$8.32M |
|
225
CALL
Intuit
INTU
$92B
| $437M | 0.07% |
659,300
+6,900
| +1% | +$4.56M |
|
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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.