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 | |
|---|---|---|---|---|---|---|---|
176
Mastercard
MA
$576B
| $754M | 0.09% |
1,467,770
+342,099
| +30% | +$171M |
2016 Q1
41 quarters
|
|
177
CALL
Vertiv
VRT
$79.5B
| $751M | 0.09% |
2,243,000
-106,800
| -5% | -$33.9M |
2022 Q4
14 quarters
|
|
178
CALL
Reddit
RDDT
$20.4B
| $740M | 0.08% |
4,264,300
-232,200
| -5% | -$37.2M |
2024 Q1
9 quarters
|
|
179
CALL
AST SpaceMobile
ASTS
$11B
| $740M | 0.08% |
8,324,800
+2,305,900
| +38% | +$201M |
2021 Q1
21 quarters
|
|
180
Seagate
STX
$127B
| $729M | 0.08% |
755,495
+644,750
| +582% | +$492M |
2017 Q3
35 quarters
|
|
181
JPMorgan Chase
JPM
$912B
| $725M | 0.08% |
2,214,465
-217,708
| -9% | -$67.6M |
2015 Q3
43 quarters
|
|
182
CALL
KLA
KLAC
$210B
| $717M | 0.08% |
2,377,600
+725,600
| +44% | +$144M |
2013 Q2
52 quarters
|
|
183
CALL
iShares MSCI Emerging Markets ETF
EEM
$28.8B
| $716M | 0.08% |
10,460,600
-11,096,000
| -51% | -$725M |
2016 Q3
39 quarters
|
|
184
PUT
United States Oil Fund
USO
$1.8B
| $715M | 0.08% |
6,721,000
-3,876,400
| -37% | -$508M |
2014 Q1
49 quarters
|
|
185
Oracle
ORCL
$400B
| $697M | 0.08% |
4,756,029
+2,453,191
| +107% | +$445M |
2013 Q2
52 quarters
|
|
186
CALL
Corning
GLW
$104B
| $696M | 0.08% |
2,725,000
+551,600
| +25% | +$100M |
2013 Q2
52 quarters
|
|
|
187
Micron Technology
MU
$918B
| $693M | 0.08% |
600,523
-3,995,849
| -87% | -$3B |
2016 Q2
40 quarters
|
|
|
188
PUT
iShares MSCI Emerging Markets ETF
EEM
$28.8B
| $690M | 0.08% |
10,084,300
-3,592,700
| -26% | -$235M |
2016 Q3
39 quarters
|
|
189
PUT
Applovin
APP
$134B
| $685M | 0.08% |
1,329,400
-303,900
| -19% | -$147M |
2021 Q2
20 quarters
|
|
190
CALL
iShares Semiconductor ETF
SOXX
$44.6B
| $676M | 0.08% |
3,165,000
+2,268,000
| +253% | +$384M |
2017 Q1
37 quarters
|
|
191
PUT
Alibaba
BABA
$253B
| $675M | 0.08% |
7,030,900
+3,167,300
| +82% | +$397M |
2016 Q2
40 quarters
|
|
192
CALL
ProShares UltraPro QQQ
TQQQ
$33.6B
| $669M | 0.08% |
8,257,400
+1,651,700
| +25% | +$115M |
2016 Q3
39 quarters
|
|
193
CALL
iShares Expanded Tech-Software Sector ETF
IGV
$12.8B
| $667M | 0.08% |
7,366,600
+3,107,300
| +73% | +$276M |
2019 Q1
29 quarters
|
|
194
PUT
Mercado Libre
MELI
$76.7B
| $666M | 0.08% |
392,200
+146,400
| +60% | +$250M |
2013 Q2
52 quarters
|
|
195
PUT
Adobe
ADBE
$92.5B
| $656M | 0.08% |
3,202,100
+1,489,700
| +87% | +$353M |
2013 Q2
52 quarters
|
|
196
O'Reilly Automotive
ORLY
$72.6B
| $646M | 0.07% |
7,019,578
+2,168,266
| +45% | +$198M |
2014 Q1
49 quarters
|
|
197
CALL
Vanguard S&P 500 ETF
VOO
$1.05T
| $644M | 0.07% |
937,700
-96,800
| -9% | -$64.5M |
2018 Q2
32 quarters
|
|
198
Coca-Cola
KO
$420B
| $638M | 0.07% |
7,853,486
+1,404,972
| +22% | +$111M |
2017 Q2
36 quarters
|
|
199
PUT
Visa
V
$794B
| $637M | 0.07% |
1,855,300
+290,400
| +19% | +$93.2M |
2013 Q2
52 quarters
|
|
|
200
Netflix
NFLX
$265B
| $631M | 0.07% |
8,842,099
+7,115,724
| +412% | +$627M |
2015 Q4
42 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.