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 | |
|---|---|---|---|---|---|---|---|
76
CALL
Dell
DELL
$209B
| $1.63B | 0.19% |
3,781,800
+816,700
| +28% | +$236M |
2019 Q1
29 quarters
|
|
77
CALL
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$11B
| $1.61B | 0.18% |
6,021,700
+373,300
| +7% | +$62.8M |
2017 Q2
36 quarters
|
|
|
78
PUT
Direxion Daily Semiconductor Bull 3X ETF
SOXL
$11B
| $1.59B | 0.18% |
5,971,400
-1,213,100
| -17% | -$204M |
2017 Q2
36 quarters
|
|
79
PUT
GE Vernova
GEV
$205B
| $1.56B | 0.18% |
1,328,000
+237,400
| +22% | +$242M |
2024 Q2
8 quarters
|
|
80
CALL
Oracle
ORCL
$362B
| $1.56B | 0.18% |
10,612,500
+1,286,200
| +14% | +$233M |
2013 Q2
52 quarters
|
|
81
CALL
Nebius Group N.V.
NBIS
$35.2B
| $1.55B | 0.18% |
5,598,000
+1,909,700
| +52% | +$378M |
2024 Q4
6 quarters
|
|
82
CALL
Lam Research
LRCX
$251B
| $1.52B | 0.17% |
3,506,300
+395,200
| +13% | +$120M |
2013 Q2
52 quarters
|
|
83
PUT
JPMorgan Chase
JPM
$888B
| $1.51B | 0.17% |
4,624,100
+661,100
| +17% | +$205M |
2013 Q2
52 quarters
|
|
84
PUT
Bloom Energy
BE
$51.2B
| $1.49B | 0.17% |
4,929,200
+1,642,700
| +50% | +$421M |
2018 Q3
31 quarters
|
|
85
PUT
Palantir
PLTR
$386B
| $1.49B | 0.17% |
12,768,900
-1,318,200
| -9% | -$180M |
2020 Q4
22 quarters
|
|
86
CALL
Western Digital
WDC
$98.7B
| $1.48B | 0.17% |
2,323,700
+299,800
| +15% | +$146M |
2013 Q2
52 quarters
|
|
87
CALL
Costco
COST
$467B
| $1.48B | 0.17% |
1,581,700
+168,700
| +12% | +$168M |
2013 Q2
52 quarters
|
|
|
88
PUT
Oracle
ORCL
$362B
| $1.47B | 0.17% |
10,019,700
+1,618,300
| +19% | +$293M |
2013 Q2
52 quarters
|
|
89
CALL
iShares MSCI South Korea ETF
EWY
$20.1B
| $1.46B | 0.17% |
7,208,200
+4,595,600
| +176% | +$811M |
2016 Q3
39 quarters
|
|
|
90
PUT
Costco
COST
$467B
| $1.45B | 0.17% |
1,549,600
+542,300
| +54% | +$540M |
2013 Q2
52 quarters
|
|
91
PUT
Vanguard S&P 500 ETF
VOO
$996B
| $1.44B | 0.17% |
2,102,200
+1,183,700
| +129% | +$789M |
2018 Q2
32 quarters
|
|
|
92
PUT
Nebius Group N.V.
NBIS
$35.2B
| $1.44B | 0.16% |
5,226,100
+3,386,800
| +184% | +$671M |
2024 Q4
6 quarters
|
|
93
CALL
Robinhood
HOOD
$72.9B
| $1.43B | 0.16% |
14,285,700
+2,912,900
| +26% | +$244M |
2021 Q3
19 quarters
|
|
|
94
CALL
SpaceX
SPCX
$1.82T
| $1.42B | 0.16% |
+8,281,900
| New | +$1.41B |
2026 Q2
0 quarters
|
|
95
Microsoft
MSFT
$3.94T
| $1.41B | 0.16% |
3,770,405
+1,132,281
| +43% | +$458M |
2013 Q2
52 quarters
|
|
96
PUT
iShares Expanded Tech-Software Sector ETF
IGV
$13B
| $1.41B | 0.16% |
15,516,200
+11,328,000
| +270% | +$1.01B |
2019 Q1
29 quarters
|
|
97
CALL
Carvana
CVNA
$81.2B
| $1.34B | 0.15% |
20,431,000
-2,111,500
| -9% | -$149M |
2017 Q2
36 quarters
|
|
|
98
CALL
GE Vernova
GEV
$205B
| $1.34B | 0.15% |
1,138,000
+94,600
| +9% | +$96.6M |
2024 Q2
8 quarters
|
|
99
CALL
iShares MSCI Brazil ETF
EWZ
$9.5B
| $1.32B | 0.15% |
38,228,800
-7,371,200
| -16% | -$275M |
2016 Q3
39 quarters
|
|
|
100
CALL
Bloom Energy
BE
$51.2B
| $1.32B | 0.15% |
4,351,800
+553,900
| +15% | +$142M |
2018 Q3
31 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.