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 | |
|---|---|---|---|---|---|---|
1526
PUT
Modine Manufacturing
MOD
$10.6B
| $41.4M | 0.01% |
191,200
+112,700
| +144% | +$21.2M |
|
1527
Brookdale Senior Living
BKD
$3B
| $41.4M | 0.01% |
3,024,604
+643,991
| +27% | +$9.02M |
|
1528
American Healthcare REIT
AHR
$10.1B
| $41.4M | 0.01% |
877,170
+678,001
| +340% | +$33.6M |
|
1529
CALL
AerCap
AER
$23.6B
| $41.4M | 0.01% |
301,500
+221,800
| +278% | +$31.7M |
|
1530
Workiva
WK
$3.7B
| $41.3M | 0.01% |
692,255
+296,026
| +75% | +$20.6M |
|
1531
DuPont de Nemours
DD
$19.5B
| $41.1M | 0.01% |
299,447
-113,794
| -28% | -$15.7M |
|
1532
Viking Therapeutics
VKTX
$3.84B
| $41.1M | 0.01% |
1,262,221
-470,200
| -27% | -$15.1M |
|
1533
CALL
Southern Copper
SCCO
$165B
| $41M | 0.01% |
243,571
+168,631
| +225% | +$30.5M |
|
1534
PUT
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$3.89B
| $41M | 0.01% |
1,694,100
-1,484,400
| -47% | -$41.1M |
|
|
ETHA
1535
iShares Ethereum Trust ETF
ETHA
$5.56B
| $41M | 0.01% |
2,588,182
-1,747,089
| -40% | -$31.6M |
|
1536
EXL Service
EXLS
$5.36B
| $40.9M | 0.01% |
1,344,347
+1,128,114
| +522% | +$38.9M |
|
1537
CALL
Roku
ROKU
$22.9B
| $40.9M | 0.01% |
432,300
-600,900
| -58% | -$58.5M |
|
|
FISV
1538
PUT
Fiserv Inc
FISV
$29.5B
| $40.8M | 0.01% |
730,700
-214,000
| -23% | -$13.2M |
|
1539
TeraWulf
WULF
$8.14B
| $40.8M | 0.01% |
2,824,634
-4,797,281
| -63% | -$71.1M |
|
1540
CALL
Best Buy
BBY
$17.5B
| $40.7M | 0.01% |
633,400
-48,400
| -7% | -$3.18M |
|
|
FISV
1541
Fiserv Inc
FISV
$29.5B
| $40.7M | 0.01% |
728,630
-1,065,120
| -59% | -$65.9M |
|
1542
PUT
Norwegian Cruise Line
NCLH
$8.69B
| $40.6M | 0.01% |
2,173,600
+153,300
| +8% | +$3.35M |
|
1543
PUT
Lennar Class A
LEN
$20.5B
| $40.6M | 0.01% |
467,500
+43,300
| +10% | +$4.68M |
|
1544
CALL
Wheaton Precious Metals
WPM
$61.3B
| $40.5M | 0.01% |
309,400
-96,900
| -24% | -$13.5M |
|
1545
CALL
Las Vegas Sands
LVS
$29.6B
| $40.5M | 0.01% |
751,200
-394,700
| -34% | -$22.5M |
|
1546
CALL
L3Harris
LHX
$54.1B
| $40.5M | 0.01% |
117,200
+65,800
| +128% | +$23M |
|
1547
CALL
Estee Lauder
EL
$31.6B
| $40.4M | 0.01% |
563,000
-462,200
| -45% | -$47.2M |
|
1548
Northern Trust
NTRS
$35B
| $40.4M | 0.01% |
289,460
+104,263
| +56% | +$15M |
|
1549
Primoris Services
PRIM
$4.39B
| $40.4M | 0.01% |
282,418
+144,609
| +105% | +$21.2M |
|
1550
CALL
Dollar Tree
DLTR
$24.7B
| $40.4M | 0.01% |
368,700
-690,400
| -65% | -$84.3M |
|
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.