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 | |
|---|---|---|---|---|---|---|
4201
CALL
Worthington Enterprises
WOR
$2.82B
| $5.33M | ﹤0.01% |
102,200
+31,400
| +44% | +$1.68M |
|
4202
VanEck Video Gaming and eSports ETF
ESPO
$255M
| $5.32M | ﹤0.01% |
58,828
+50,966
| +648% | +$4.92M |
|
4203
CALL
Viking Holdings
VIK
$44.6B
| $5.32M | ﹤0.01% |
72,400
-98,400
| -58% | -$7.19M |
|
4204
CALL
Deutsche Bank
DB
$71.6B
| $5.32M | ﹤0.01% |
178,600
-135,500
| -43% | -$4.77M |
|
4205
Sunrun
RUN
$2.37B
| $5.32M | ﹤0.01% |
392,214
-1,956,554
| -83% | -$32.6M |
|
4206
CALL
FormFactor
FORM
$10.8B
| $5.32M | ﹤0.01% |
54,800
+6,800
| +14% | +$585K |
|
4207
CALL
Amer Sports
AS
$18.9B
| $5.31M | ﹤0.01% |
161,300
+90,200
| +127% | +$3.3M |
|
|
EMBJ
4208
Embraer S.A. ADS
EMBJ
$13.7B
| $5.3M | ﹤0.01% |
89,326
-272,962
| -75% | -$18.7M |
|
4209
CALL
Beazer Homes USA
BZH
$874M
| $5.3M | ﹤0.01% |
275,400
+81,900
| +42% | +$1.89M |
|
4210
PUT
Consolidated Edison
ED
$40.3B
| $5.3M | ﹤0.01% |
46,800
-70,300
| -60% | -$7.61M |
|
4211
CALL
JFrog
FROG
$11.5B
| $5.29M | ﹤0.01% |
112,800
+17,600
| +18% | +$864K |
|
4212
PUT
Grayscale Bitcoin Trust
GBTC
$9.65B
| $5.29M | ﹤0.01% |
100,300
+2,500
| +3% | +$149K |
|
4213
CALL
First Trust NASDAQ Cybersecurity ETF
CIBR
$15.5B
| $5.29M | ﹤0.01% |
84,400
+42,800
| +103% | +$2.87M |
|
|
CBLL
4214
CeriBell Inc
CBLL
$936M
| $5.28M | ﹤0.01% |
288,114
+95,604
| +50% | +$1.92M |
|
4215
PUT
Travelers Companies
TRV
$76B
| $5.28M | ﹤0.01% |
18,100
-104,700
| -85% | -$30.7M |
|
4216
CALL
iShares MSCI Mexico ETF
EWW
$1.81B
| $5.27M | ﹤0.01% |
70,100
-613,000
| -90% | -$46.3M |
|
4217
CALL
Aurora
AUR
$13.7B
| $5.27M | ﹤0.01% |
1,279,000
+362,700
| +40% | +$1.6M |
|
4218
CALL
Sweetgreen
SG
$700M
| $5.27M | ﹤0.01% |
1,015,200
-771,600
| -43% | -$4.69M |
|
4219
iShares Global Healthcare ETF
IXJ
$4.2B
| $5.27M | ﹤0.01% |
56,307
+7,481
| +15% | +$733K |
|
4220
PUT
Intellia Therapeutics
NTLA
$1.69B
| $5.26M | ﹤0.01% |
410,600
-344,000
| -46% | -$4.38M |
|
|
SLDE
4221
Slide Insurance Holdings
SLDE
$2.52B
| $5.26M | ﹤0.01% |
292,257
-1,771,514
| -86% | -$31M |
|
|
ORLA
4222
CALL
DELISTED
Orla Mining
ORLA
| $5.25M | ﹤0.01% |
325,500
+232,700
| +251% | +$3.86M |
|
4223
Sumitomo Mitsui Financial
SMFG
$167B
| $5.24M | ﹤0.01% |
265,505
-160,186
| -38% | -$3.37M |
|
4224
Aehr Test Systems
AEHR
$4.75B
| $5.24M | ﹤0.01% |
141,291
-79,488
| -36% | -$2.54M |
|
|
STLN
4225
CALL
Starling Oncology
STLN
$643M
| $5.23M | ﹤0.01% |
1,703,000
+1,252,700
| +278% | +$3.84M |
|
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.