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 | +$9.91B | |
| 2 | +$871M | |
| 3 | +$719M | |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 | +$3B | |
| 2 | +$1.54B | |
| 3 | +$1.42B | |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
SNDK
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.92% |
| 2 | Healthcare | 2.55% |
| 3 | Industrials | 2.24% |
| 4 | Financials | 2.13% |
| 5 | Consumer Discretionary | 1.76% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
PUT
KLA
KLAC
$255B
| $1.31B | 0.15% |
4,355,100
+3,009,100
|
|
||
102
CALL
Applovin
APP
$103B
| $1.29B | 0.15% |
2,496,400
-800,500
|
|
||
103
PUT
Robinhood
HOOD
$82.3B
| $1.25B | 0.14% |
12,432,500
+4,919,800
|
|
||
104
CALL
Palo Alto Networks
PANW
$305B
| $1.23B | 0.14% |
3,601,880
+494,300
|
|
||
105
PUT
Citigroup
C
$232B
| $1.23B | 0.14% |
8,761,000
-248,900
|
|
||
|
EA
106
DELISTED
Electronic Arts
EA
| $1.21B | 0.14% |
5,906,884
+2,996,580
|
|
||
107
CALL
Seagate
STX
$205B
| $1.2B | 0.14% |
1,246,600
+46,900
|
|
||
108
Warner Bros
WBD
$70B
| $1.19B | 0.14% |
44,587,810
+15,207,100
|
|
||
109
CALL
Arm
ARM
$271B
| $1.18B | 0.13% |
3,319,900
+627,700
|
|
||
110
PUT
iShares MSCI South Korea ETF
EWY
$26.6B
| $1.18B | 0.13% |
5,825,600
+3,332,000
|
|
||
111
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.4B
| $1.16B | 0.13% |
2,224,000
+154,500
|
|
||
|
112
PUT
Palo Alto Networks
PANW
$305B
| $1.14B | 0.13% |
3,355,020
+1,274,820
|
|
||
113
Eli Lilly
LLY
$1.09T
| $1.13B | 0.13% |
945,456
+703,742
|
|
||
114
CALL
Snowflake
SNOW
$114B
| $1.12B | 0.13% |
4,410,000
+194,500
|
|
||
115
CALL
Salesforce
CRM
$161B
| $1.11B | 0.13% |
7,073,800
+1,394,900
|
|
||
116
PUT
Strategy Inc
MSTR
$36.8B
| $1.11B | 0.13% |
12,733,300
+3,545,100
|
|
||
117
Broadcom
AVGO
$1.81T
| $1.1B | 0.13% |
2,901,715
-355,679
|
|
||
118
Alphabet (Google) Class A
GOOGL
$4.21T
| $1.07B | 0.12% |
2,990,581
+150,499
|
|
||
|
119
CALL
Strategy Inc
MSTR
$36.8B
| $1.07B | 0.12% |
12,263,900
+1,570,800
|
|
||
120
CALL
Booking.com
BKNG
$156B
| $1.06B | 0.12% |
5,959,200
-4,033,300
|
|
||
121
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$34.4B
| $1.06B | 0.12% |
5,712,300
+4,354,900
|
|
||
122
Blackrock
BLK
$178B
| $1.06B | 0.12% |
1,097,186
+394,079
|
|
||
123
CALL
First Solar
FSLR
$23.6B
| $1.05B | 0.12% |
4,435,400
+520,900
|
|
||
|
CRWV
124
CALL
CoreWeave
CRWV
$51.4B
| $1.05B | 0.12% |
10,501,900
+3,768,600
|
|
||
125
PUT
Lumentum
LITE
$78.3B
| $1.04B | 0.12% |
1,215,300
+256,400
|
|
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Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,447 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin deployed $103B of net new capital in Q2 2026, opening 2,575 new positions and adding to 6,089 existing holdings. Its largest new stake was SpaceX: 5,129,884 shares worth $876M.
By sector, the portfolio is most concentrated in Technology at 3.9% of assets, down from 4.5% a quarter earlier, followed by Healthcare and Industrials.
On the sell side, the largest reduction was Micron Technology, an estimated $3B trimmed.
- Ken Griffin's largest Q2 2026 buy was SpaceX: 5,129,884 shares worth $876M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q2 2026, an estimated $9.91B increase.
- Ken Griffin's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $3B.
- Ken Griffin fully exited iShares 7-10 Year Treasury Bond ETF in Q2 2026, selling an estimated $325M.
- Ken Griffin's ten largest holdings make up 23% of its $875B portfolio in Q2 2026.
- Ken Griffin opened 2,575 new positions and closed 1,872 in Q2 2026.
- Ken Griffin's portfolio value rose 41% quarter-over-quarter to $875B.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.