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 | |
|---|---|---|---|---|---|---|
1926
PUT
Madison Square Garden
MSGS
$9.8B
| $28.9M | ﹤0.01% |
111,600
-16,000
| -13% | -$3.64M |
|
1927
Shopify
SHOP
$199B
| $28.9M | ﹤0.01% |
179,252
+127,307
| +245% | +$20.4M |
|
1928
PUT
Floor & Decor
FND
$6.24B
| $28.8M | ﹤0.01% |
473,400
+58,500
| +14% | +$3.79M |
|
|
NNE
1929
Nano Nuclear Energy
NNE
$1.06B
| $28.8M | ﹤0.01% |
1,199,443
+841,063
| +235% | +$32.2M |
|
|
P
1930
Everpure Inc
P
$39.3B
| $28.7M | ﹤0.01% |
428,967
+201,253
| +88% | +$16.8M |
|
1931
PUT
Valaris
VAL
$5.95B
| $28.7M | ﹤0.01% |
569,300
-198,100
| -26% | -$10.6M |
|
|
DOCU
1932
DocuSign
DOCU
$11.8B
| $28.6M | ﹤0.01% |
418,494
-527,913
| -56% | -$36.5M |
|
|
GAP
1933
The Gap Inc
GAP
$7.42B
| $28.6M | ﹤0.01% |
1,117,044
+772,995
| +225% | +$18.7M |
|
1934
Xcel Energy
XEL
$49.5B
| $28.6M | ﹤0.01% |
387,029
+265,006
| +217% | +$20.9M |
|
1935
PUT
Herbalife
HLF
$1.29B
| $28.6M | ﹤0.01% |
2,215,600
-96,400
| -4% | -$1.02M |
|
1936
PUT
Canadian Natural Resources
CNQ
$98.9B
| $28.5M | ﹤0.01% |
843,000
-14,600
| -2% | -$473K |
|
1937
PUT
Biogen
BIIB
$31B
| $28.5M | ﹤0.01% |
162,000
+4,000
| +3% | +$653K |
|
|
TMHC
1938
DELISTED
Taylor Morrison
TMHC
| $28.5M | ﹤0.01% |
484,008
-24,182
| -5% | -$1.48M |
|
|
Q
1939
CALL
Qnity Electronics Inc
Q
$29.8B
| $28.5M | ﹤0.01% |
+348,950
| New | +$29.6M |
|
1940
CBRE Group
CBRE
$44.3B
| $28.5M | ﹤0.01% |
176,989
-286,979
| -62% | -$45.1M |
|
1941
American International
AIG
$40.1B
| $28.4M | ﹤0.01% |
332,466
-96,943
| -23% | -$7.76M |
|
1942
CALL
Alexandria Real Estate Equities
ARE
$8.28B
| $28.4M | ﹤0.01% |
580,200
+399,700
| +221% | +$23.5M |
|
1943
CALL
SiteOne Landscape Supply
SITE
$4.3B
| $28.3M | ﹤0.01% |
227,300
+225,400
| +11,863% | +$28.5M |
|
1944
Sigma Lithium
SGML
$1.34B
| $28.3M | ﹤0.01% |
2,144,283
-260,276
| -11% | -$2.24M |
|
1945
CG Oncology
CGON
$6.65B
| $28.3M | ﹤0.01% |
681,186
+442,414
| +185% | +$18.3M |
|
1946
CALL
iShares Expanded Tech-Software Sector ETF
IGV
$14.9B
| $28.3M | ﹤0.01% |
267,500
+61,700
| +30% | +$6.78M |
|
1947
Eos Energy Enterprises
EOSE
$1.46B
| $28.2M | ﹤0.01% |
2,461,988
-320,875
| -12% | -$4.61M |
|
1948
Revolve Group
RVLV
$1.68B
| $28.2M | ﹤0.01% |
934,431
-65,175
| -7% | -$1.57M |
|
1949
CALL
BWX Technologies
BWXT
$15.9B
| $28.2M | ﹤0.01% |
163,200
-24,900
| -13% | -$4.67M |
|
1950
Halliburton
HAL
$28.7B
| $28.2M | ﹤0.01% |
998,069
-1,896,265
| -66% | -$50.1M |
|
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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.