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 |
iShares Core S&P 500 ETF
IVV
|
+$9.9B |
| 2 |
SpaceX
SPCX
|
+$871M |
| 3 |
Eli Lilly
LLY
|
+$719M |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$3B |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.54B |
| 3 |
TSMC
TSM
|
+$1.42B |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 82.67% |
| 2 | Technology | 3.92% |
| 3 | Healthcare | 2.55% |
| 4 | Industrials | 2.26% |
| 5 | Financials | 2.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
101
PUT
KLA
KLAC
$199B
| $1.31B | 0.15% |
4,355,100
+3,009,100
| +224% | +$597M |
2013 Q2
52 quarters
|
|
102
CALL
Applovin
APP
$131B
| $1.29B | 0.15% |
2,496,400
-800,500
| -24% | -$386M |
2021 Q2
20 quarters
|
|
103
PUT
Robinhood
HOOD
$73.2B
| $1.25B | 0.14% |
12,432,500
+4,919,800
| +65% | +$412M |
2021 Q3
19 quarters
|
|
104
CALL
Palo Alto Networks
PANW
$267B
| $1.23B | 0.14% |
3,601,880
+494,300
| +16% | +$113M |
2013 Q2
52 quarters
|
|
105
PUT
Citigroup
C
$202B
| $1.23B | 0.14% |
8,761,000
-248,900
| -3% | -$32.4M |
2013 Q2
52 quarters
|
|
106
DELISTED
Electronic Arts
EA
| $1.21B | 0.14% |
5,906,884
+2,996,580
| +103% | +$607M |
2013 Q2
52 quarters
|
|
107
CALL
Seagate
STX
$115B
| $1.2B | 0.14% |
1,246,600
+46,900
| +4% | +$35.8M |
2013 Q2
52 quarters
|
|
108
DELISTED
Warner Bros
WBD
| $1.19B | 0.14% |
44,587,810
+15,207,100
| +52% | +$411M |
2024 Q3
7 quarters
|
|
109
CALL
Arm
ARM
$194B
| $1.18B | 0.13% |
3,319,900
+627,700
| +23% | +$167M |
2023 Q3
11 quarters
|
|
110
PUT
iShares MSCI South Korea ETF
EWY
$20.4B
| $1.18B | 0.13% |
5,825,600
+3,332,000
| +134% | +$588M |
2016 Q3
39 quarters
|
|
|
111
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45.9B
| $1.16B | 0.13% |
2,224,000
+154,500
| +7% | +$77.2M |
2014 Q1
49 quarters
|
|
|
112
PUT
Palo Alto Networks
PANW
$267B
| $1.14B | 0.13% |
3,355,020
+1,274,820
| +61% | +$292M |
2013 Q2
52 quarters
|
|
|
113
Eli Lilly
LLY
$1.28T
| $1.13B | 0.13% |
945,456
+703,742
| +291% | +$719M |
2013 Q2
52 quarters
|
|
114
CALL
Snowflake
SNOW
$104B
| $1.12B | 0.13% |
4,410,000
+194,500
| +5% | +$35.8M |
2020 Q3
23 quarters
|
|
115
CALL
Salesforce
CRM
$176B
| $1.11B | 0.13% |
7,073,800
+1,394,900
| +25% | +$245M |
2013 Q2
52 quarters
|
|
116
PUT
Strategy Inc
MSTR
$51.2B
| $1.11B | 0.13% |
12,733,300
+3,545,100
| +39% | +$515M |
2013 Q2
52 quarters
|
|
117
Broadcom
AVGO
$1.58T
| $1.1B | 0.13% |
2,901,715
-355,679
| -11% | -$143M |
2013 Q2
52 quarters
|
|
118
Alphabet (Google) Class A
GOOGL
$3.53T
| $1.07B | 0.12% |
2,990,581
+150,499
| +5% | +$54.2M |
2016 Q3
39 quarters
|
|
|
119
CALL
Strategy Inc
MSTR
$51.2B
| $1.07B | 0.12% |
12,263,900
+1,570,800
| +15% | +$228M |
2020 Q1
25 quarters
|
|
120
CALL
Booking.com
BKNG
$118B
| $1.06B | 0.12% |
5,959,200
-4,033,300
| -40% | -$688M |
2013 Q2
52 quarters
|
|
121
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$30.9B
| $1.06B | 0.12% |
5,712,300
+4,354,900
| +321% | +$757M |
2014 Q1
49 quarters
|
|
122
Blackrock
BLK
$189B
| $1.06B | 0.12% |
1,097,186
+394,079
| +56% | +$408M |
2016 Q3
39 quarters
|
|
123
CALL
First Solar
FSLR
$19.5B
| $1.05B | 0.12% |
4,435,400
+520,900
| +13% | +$122M |
2013 Q2
52 quarters
|
|
124
CALL
CoreWeave
CRWV
$26.9B
| $1.05B | 0.12% |
10,501,900
+3,768,600
| +56% | +$407M |
2025 Q2
4 quarters
|
|
125
PUT
Lumentum
LITE
$53.1B
| $1.04B | 0.12% |
1,215,300
+256,400
| +27% | +$229M |
2015 Q3
43 quarters
|
|
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Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,445 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin's Q2 2026 filing shows 2,573 new, 6,088 increased, 4,803 reduced and 1,873 closed positions. Its largest new stake was SpaceX: 5,129,884 shares worth $876M. The largest sale was Micron Technology, an estimated $3B.
By sector, the portfolio is most concentrated in Miscellaneous at 83% of assets, up from 79% a quarter earlier, followed by Technology and Healthcare.
- 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 $9.9B 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 2,573 new positions and closed 1,873 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.