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 | |
|---|---|---|---|---|---|---|
1351
WEC Energy
WEC
$35.9B
| $50M | 0.01% |
431,598
-126,197
| -23% | -$14.2M |
|
1352
CALL
Clorox
CLX
$12.9B
| $49.9M | 0.01% |
481,700
+412,700
| +598% | +$46.8M |
|
1353
Shopify
SHOP
$204B
| $49.9M | 0.01% |
420,473
+241,221
| +135% | +$31.7M |
|
1354
CALL
Jabil
JBL
$38.8B
| $49.8M | 0.01% |
187,600
+2,700
| +1% | +$680K |
|
1355
IAMGOLD
IAG
$10.1B
| $49.8M | 0.01% |
2,646,959
-715,035
| -21% | -$14.2M |
|
1356
iShares Core US Aggregate Bond ETF
AGG
$138B
| $49.8M | 0.01% |
501,401
-112,708
| -18% | -$11.3M |
|
1357
Life Time Group Holdings
LTH
$9.9B
| $49.7M | 0.01% |
1,843,390
-2,044
| -0.1% | -$56.5K |
|
1358
Wayfair
W
$13.9B
| $49.6M | 0.01% |
659,072
-169,213
| -20% | -$15.3M |
|
1359
CALL
Cardinal Health
CAH
$53.8B
| $49.6M | 0.01% |
234,500
+53,500
| +30% | +$11.5M |
|
1360
Encompass Health
EHC
$12.2B
| $49.5M | 0.01% |
511,887
+394,416
| +336% | +$40.4M |
|
1361
CALL
Plains All American Pipeline
PAA
$16.5B
| $49.5M | 0.01% |
2,216,700
+164,400
| +8% | +$3.34M |
|
1362
PUT
Hewlett Packard
HPE
$79.2B
| $49.5M | 0.01% |
2,078,200
-185,000
| -8% | -$4.1M |
|
|
ORKA
1363
Oruka Therapeutics
ORKA
$7.16B
| $49.4M | 0.01% |
1,007,537
+281,419
| +39% | +$9.78M |
|
1364
Interactive Brokers
IBKR
$41.4B
| $49.4M | 0.01% |
736,273
+85,739
| +13% | +$6.12M |
|
1365
General Mills
GIS
$20.8B
| $49.3M | 0.01% |
1,325,720
+239,475
| +22% | +$10.4M |
|
1366
Marathon Petroleum
MPC
$100B
| $49.3M | 0.01% |
202,060
-710,192
| -78% | -$143M |
|
1367
First Citizens BancShares
FCNCA
$25.6B
| $49.3M | 0.01% |
+26,155
| New | +$52.5M |
|
1368
CALL
Norwegian Cruise Line
NCLH
$8.98B
| $49.2M | 0.01% |
2,633,600
-482,300
| -15% | -$10.5M |
|
1369
Macerich
MAC
$6.99B
| $49.2M | 0.01% |
2,604,585
-1,820,961
| -41% | -$34.5M |
|
1370
Fastenal
FAST
$58.9B
| $49.2M | 0.01% |
1,060,645
+423,359
| +66% | +$19M |
|
1371
Viper Energy
VNOM
$14.8B
| $49.2M | 0.01% |
1,047,223
+933,302
| +819% | +$40M |
|
1372
Idexx Laboratories
IDXX
$44.7B
| $49.2M | 0.01% |
87,566
+69,723
| +391% | +$44.7M |
|
1373
State Street Energy Select Sector SPDR ETF
XLE
$39.9B
| $49.2M | 0.01% |
803,000
+203,995
| +34% | +$10.9M |
|
1374
Warrior Met Coal
HCC
$4.98B
| $49.2M | 0.01% |
527,923
-238,122
| -31% | -$21.4M |
|
1375
CALL
Rocket Companies
RKT
$42.6B
| $49.1M | 0.01% |
3,445,711
-1,276,050
| -27% | -$23.2M |
|
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.