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
|
+$2.72B |
| 2 |
Meta Platforms (Facebook)
META
|
+$660M |
| 3 |
Micron Technology
MU
|
+$605M |
| 4 |
Mastercard
MA
|
+$497M |
| 5 |
Tesla
TSLA
|
+$495M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$1.33B |
| 2 |
Visa
V
|
+$1.26B |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.23B |
| 4 |
Lam Research
LRCX
|
+$699M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$681M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.49% |
| 2 | Healthcare | 2.99% |
| 3 | Financials | 2.85% |
| 4 | Industrials | 2.56% |
| 5 | Consumer Discretionary | 2.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1151
Coca-Cola Europacific Partners
CCEP
$47.5B
| $62.6M | 0.01% |
690,467
+347,441
| +101% | +$33.4M |
|
|
MIAX
1152
Miami International Holdings
MIAX
$4.36B
| $62.6M | 0.01% |
1,607,780
+988,200
| +159% | +$40.7M |
|
1153
TJX Companies
TJX
$170B
| $62.5M | 0.01% |
391,134
-563,886
| -59% | -$87.8M |
|
1154
PUT
Datadog
DDOG
$90.6B
| $62.1M | 0.01% |
526,100
-816,300
| -61% | -$101M |
|
1155
Waters Corp
WAT
$40.6B
| $62.1M | 0.01% |
208,503
+69,018
| +49% | +$23.6M |
|
1156
CALL
Insmed
INSM
$27.6B
| $62.1M | 0.01% |
379,700
-53,200
| -12% | -$8.18M |
|
1157
CALL
Elevance Health
ELV
$86.4B
| $61.9M | 0.01% |
211,500
-243,800
| -54% | -$80.1M |
|
1158
CALL
General Dynamics
GD
$106B
| $61.7M | 0.01% |
179,800
-51,800
| -22% | -$18.4M |
|
1159
Rockwell Automation
ROK
$49.5B
| $61.6M | 0.01% |
171,781
-353,021
| -67% | -$139M |
|
1160
CALL
Hewlett Packard
HPE
$79.2B
| $61.6M | 0.01% |
2,586,900
-1,338,800
| -34% | -$29.7M |
|
1161
CALL
IonQ
IONQ
$18.2B
| $61.5M | 0.01% |
2,132,300
+241,200
| +13% | +$9.26M |
|
1162
Tyson Foods
TSN
$19.8B
| $61.3M | 0.01% |
957,072
-1,414,439
| -60% | -$87.8M |
|
1163
PUT
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$142M
| $61.3M | 0.01% |
1,716,400
+1,313,775
| +326% | +$39M |
|
1164
CALL
Pan American Silver
PAAS
$19.9B
| $61.3M | 0.01% |
1,121,500
-314,490
| -22% | -$18.1M |
|
1165
CALL
Chewy
CHWY
$9.2B
| $61.2M | 0.01% |
2,265,200
+865,800
| +62% | +$24.1M |
|
1166
Integer Holdings
ITGR
$4.25B
| $61M | 0.01% |
693,057
+382,947
| +123% | +$32.6M |
|
1167
CALL
Marriott International
MAR
$91.9B
| $61M | 0.01% |
186,400
-139,100
| -43% | -$45.8M |
|
1168
CALL
Atlassian
TEAM
$42.1B
| $60.9M | 0.01% |
892,400
+440,300
| +97% | +$43.4M |
|
1169
Packaging Corp of America
PKG
$22.9B
| $60.9M | 0.01% |
286,969
+198,798
| +225% | +$44.3M |
|
1170
monday.com
MNDY
$3.99B
| $60.8M | 0.01% |
880,281
+725,155
| +467% | +$69.6M |
|
1171
Onto Innovation
ONTO
$20.6B
| $60.8M | 0.01% |
296,570
+157,804
| +114% | +$32.3M |
|
1172
CALL
Ross Stores
ROST
$78.6B
| $60.7M | 0.01% |
280,000
-54,500
| -16% | -$10.9M |
|
1173
Aecom
ACM
$8.19B
| $60.6M | 0.01% |
714,657
+199,914
| +39% | +$18.9M |
|
1174
CALL
Energy Transfer Partners
ET
$71.5B
| $60.6M | 0.01% |
3,140,600
+1,136,600
| +57% | +$20.8M |
|
|
ABVX
1175
Abivax
ABVX
$10.6B
| $60.6M | 0.01% |
544,338
-19,409
| -3% | -$2.3M |
|
Similar funds
Ken Griffin's Q1 2026 Portfolio in Review
As of Q1 2026, Ken Griffin held 14,860 positions worth $618B, down 7.1% from $666B the previous quarter. Its ten largest holdings account for 22% of the portfolio.
Ken Griffin withdrew a net $19.5B in Q1 2026, closing 2,003 positions and reducing 5,286 holdings. Its most notable exit was CyberArk, an estimated $305M position sold in full.
By sector, the portfolio is most concentrated in Technology at 4.5% of assets, down from 4.9% a quarter earlier, followed by Healthcare and Financials.
Against the trend, Ken Griffin opened a new position in iShares 7-10 Year Treasury Bond ETF worth $327M.
- Ken Griffin's largest Q1 2026 buy was iShares 7-10 Year Treasury Bond ETF: 3,431,225 shares worth $327M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q1 2026, an estimated $2.72B increase.
- Ken Griffin's biggest Q1 2026 reduction was Amazon, cutting an estimated $1.33B.
- Ken Griffin fully exited CyberArk in Q1 2026, selling an estimated $305M.
- Ken Griffin's ten largest holdings make up 22% of its $618B portfolio in Q1 2026.
- Ken Griffin opened 2,347 new positions and closed 2,003 in Q1 2026.
- Ken Griffin's portfolio value fell 7.1% quarter-over-quarter to $618B.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.