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 | |
|---|---|---|---|---|---|---|
101
Micron Technology
MU
$981B
| $871M | 0.13% |
3,052,275
+355,957
| +13% | +$81.7M |
|
102
CALL
Snowflake
SNOW
$116B
| $845M | 0.13% |
3,851,800
+581,300
| +18% | +$142M |
|
103
PUT
VanEck Gold Miners ETF
GDX
$27.5B
| $841M | 0.13% |
9,801,900
+1,361,500
| +16% | +$108M |
|
104
PUT
lululemon athletica
LULU
$14.3B
| $838M | 0.13% |
4,030,800
+300
| +0% | +$54.3K |
|
105
PUT
Seagate
STX
$186B
| $832M | 0.12% |
3,020,800
+773,900
| +34% | +$201M |
|
106
CALL
ASML
ASML
$691B
| $826M | 0.12% |
772,000
-247,200
| -24% | -$258M |
|
|
107
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$48.2B
| $819M | 0.12% |
1,704,700
+647,200
| +61% | +$306M |
|
108
CALL
Caterpillar
CAT
$388B
| $800M | 0.12% |
1,396,500
+292,400
| +26% | +$163M |
|
|
CRWV
109
CALL
CoreWeave
CRWV
$49.3B
| $792M | 0.12% |
11,054,100
+2,271,600
| +26% | +$230M |
|
|
NVO
110
PUT
Novo Nordisk
NVO
$207B
| $783M | 0.12% |
15,387,300
+4,948,900
| +47% | +$253M |
|
111
PUT
First Solar
FSLR
$25.9B
| $765M | 0.11% |
2,929,600
-986,700
| -25% | -$249M |
|
|
112
Eli Lilly
LLY
$1.08T
| $752M | 0.11% |
699,759
-453,059
| -39% | -$433M |
|
113
PUT
Coinbase
COIN
$39.2B
| $744M | 0.11% |
3,288,400
-739,500
| -18% | -$220M |
|
114
CALL
iShares MSCI Brazil ETF
EWZ
$8.6B
| $742M | 0.11% |
23,349,300
-3,390,400
| -13% | -$107M |
|
115
PUT
GE Vernova
GEV
$269B
| $734M | 0.11% |
1,123,700
+87,400
| +8% | +$53.2M |
|
116
PUT
SoFi Technologies
SOFI
$23.2B
| $733M | 0.11% |
28,003,800
+7,318,200
| +35% | +$204M |
|
117
Norfolk Southern
NSC
$75.2B
| $733M | 0.11% |
2,538,641
+565,364
| +29% | +$164M |
|
118
CALL
Lam Research
LRCX
$390B
| $728M | 0.11% |
4,252,900
+1,448,800
| +52% | +$225M |
|
|
119
Lam Research
LRCX
$390B
| $726M | 0.11% |
4,241,466
+1,195,246
| +39% | +$186M |
|
120
Alphabet (Google) Class C
GOOG
$4.19T
| $726M | 0.11% |
2,312,208
+658,504
| +40% | +$189M |
|
121
Merck
MRK
$322B
| $718M | 0.11% |
6,821,331
+5,853,277
| +605% | +$549M |
|
|
122
PUT
Lam Research
LRCX
$390B
| $716M | 0.11% |
4,184,700
+1,265,100
| +43% | +$197M |
|
123
PUT
Adobe
ADBE
$105B
| $714M | 0.11% |
2,039,400
-284,300
| -12% | -$96.7M |
|
|
124
CALL
GE Vernova
GEV
$269B
| $705M | 0.11% |
1,077,950
+97,325
| +10% | +$59.3M |
|
|
125
PUT
Caterpillar
CAT
$388B
| $699M | 0.1% |
1,219,500
+307,100
| +34% | +$171M |
|
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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.