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 | |
|---|---|---|---|---|---|---|
1801
CALL
Energy Transfer Partners
ET
$72.5B
| $33M | 0.01% |
2,004,000
-837,100
| -29% | -$13.9M |
|
1802
PUT
Kenvue
KVUE
$36.9B
| $33M | 0.01% |
1,914,700
-1,274,700
| -40% | -$20.8M |
|
1803
PUT
Tenet Healthcare
THC
$21.6B
| $33M | 0.01% |
166,200
-85,200
| -34% | -$17.2M |
|
1804
Invitation Homes
INVH
$18B
| $33M | 0.01% |
1,188,345
-284,887
| -19% | -$7.95M |
|
1805
CALL
Toyota
TM
$226B
| $33M | 0.01% |
154,200
+25,200
| +20% | +$5.11M |
|
1806
US Bancorp
USB
$102B
| $33M | 0.01% |
618,227
-2,022,356
| -77% | -$99.5M |
|
1807
PUT
Viking Therapeutics
VKTX
$3.87B
| $32.9M | ﹤0.01% |
935,600
-297,000
| -24% | -$10.5M |
|
|
TEM
1808
PUT
Tempus AI
TEM
$9.4B
| $32.9M | ﹤0.01% |
557,000
-450,400
| -45% | -$35.2M |
|
|
1809
PUT
US Bancorp
USB
$102B
| $32.9M | ﹤0.01% |
615,700
-14,300
| -2% | -$703K |
|
1810
PUT
British American Tobacco
BTI
$123B
| $32.7M | ﹤0.01% |
578,400
-287,100
| -33% | -$15.7M |
|
1811
Intercontinental Exchange
ICE
$86.9B
| $32.7M | ﹤0.01% |
202,072
+22,485
| +13% | +$3.52M |
|
1812
Saia
SAIA
$10.3B
| $32.6M | ﹤0.01% |
+99,876
| New | +$30.2M |
|
1813
CALL
Direxion Daily GOOGL Bull 2X ETF
GGLL
$954M
| $32.5M | ﹤0.01% |
335,900
+91,100
| +37% | +$7.76M |
|
1814
CALL
PG&E
PCG
$39.3B
| $32.5M | ﹤0.01% |
2,021,600
-11,079,800
| -85% | -$177M |
|
1815
Republic Services
RSG
$65.7B
| $32.4M | ﹤0.01% |
153,115
-74,737
| -33% | -$16.1M |
|
1816
PUT
2x Bitcoin ETF
BITX
$849M
| $32.4M | ﹤0.01% |
1,169,100
+220,300
| +23% | +$8.91M |
|
1817
Cleveland-Cliffs
CLF
$6.79B
| $32.3M | ﹤0.01% |
2,431,186
-2,386,251
| -50% | -$30.1M |
|
1818
CALL
iShares US Real Estate ETF
IYR
$4.59B
| $32.3M | ﹤0.01% |
343,500
-146,900
| -30% | -$14M |
|
1819
CALL
Axsome Therapeutics
AXSM
$11.2B
| $32.1M | ﹤0.01% |
176,000
+85,300
| +94% | +$11.9M |
|
1820
PUT
Emerson Electric
EMR
$91B
| $32M | ﹤0.01% |
241,000
+28,100
| +13% | +$3.73M |
|
1821
Shoals Technologies Group
SHLS
$1.42B
| $32M | ﹤0.01% |
3,759,255
-455,602
| -11% | -$4.09M |
|
1822
NexGen Energy
NXE
$6.97B
| $31.9M | ﹤0.01% |
3,469,926
+333,750
| +11% | +$2.95M |
|
1823
Lazard
LAZ
$4.35B
| $31.9M | ﹤0.01% |
656,289
+337,501
| +106% | +$16.8M |
|
1824
PUT
MGM Resorts International
MGM
$11.1B
| $31.8M | ﹤0.01% |
871,300
+83,000
| +11% | +$2.82M |
|
1825
Iris Energy
IREN
$15.7B
| $31.7M | ﹤0.01% |
840,032
-2,625,844
| -76% | -$135M |
|
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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.