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 | |
|---|---|---|---|---|---|---|
1901
CALL
Toyota
TM
$225B
| $28.2M | ﹤0.01% |
136,900
-17,300
| -11% | -$3.91M |
|
1902
QuantumScape Corp
QS
$3.84B
| $28.2M | ﹤0.01% |
4,419,643
+2,612,560
| +145% | +$21.7M |
|
1903
SentinelOne
S
$7.99B
| $28.2M | ﹤0.01% |
2,188,380
+1,500,644
| +218% | +$20.8M |
|
1904
CALL
AB InBev
BUD
$157B
| $28.2M | ﹤0.01% |
405,900
-526,200
| -56% | -$38M |
|
1905
PUT
Concentrix
CNXC
$1.55B
| $28M | ﹤0.01% |
1,022,700
+990,500
| +3,076% | +$35.2M |
|
1906
PUT
Grab
GRAB
$14.9B
| $28M | ﹤0.01% |
7,641,300
+4,257,900
| +126% | +$18.1M |
|
1907
CALL
Takeda Pharmaceutical
TAK
$56.2B
| $28M | ﹤0.01% |
1,509,500
-65,400
| -4% | -$1.15M |
|
1908
CALL
PPG Industries
PPG
$25.4B
| $27.9M | ﹤0.01% |
261,500
-1,300
| -0.5% | -$147K |
|
1909
PUT
Dick's Sporting Goods
DKS
$18.1B
| $27.9M | ﹤0.01% |
140,900
+2,000
| +1% | +$406K |
|
|
SEI
1910
Solaris Energy Infrastructure
SEI
$4.1B
| $27.9M | ﹤0.01% |
493,484
-671,016
| -58% | -$36.3M |
|
|
MBX
1911
MBX Biosciences
MBX
$3.26B
| $27.8M | ﹤0.01% |
932,833
+122,976
| +15% | +$4.18M |
|
1912
Icon
ICLR
$12.7B
| $27.8M | ﹤0.01% |
251,607
+209,642
| +500% | +$28.6M |
|
1913
Denison Mines
DNN
$2.96B
| $27.8M | ﹤0.01% |
7,881,383
+1,660,978
| +27% | +$6.24M |
|
1914
Universal Display
OLED
$4.11B
| $27.7M | ﹤0.01% |
302,511
+118,315
| +64% | +$13.1M |
|
1915
CALL
Golar LNG
GLNG
$5.33B
| $27.7M | ﹤0.01% |
512,100
+367,500
| +254% | +$16.2M |
|
|
NB
1916
NioCorp Developments
NB
$759M
| $27.7M | ﹤0.01% |
6,204,197
+6,004,890
| +3,013% | +$34.4M |
|
1917
CALL
ATI
ATI
$30.7B
| $27.7M | ﹤0.01% |
190,200
+57,700
| +44% | +$8.03M |
|
1918
Flutter Entertainment
FLUT
$17.3B
| $27.6M | ﹤0.01% |
271,211
+266,327
| +5,453% | +$38.4M |
|
1919
CALL
Casey's General Stores
CASY
$31.7B
| $27.6M | ﹤0.01% |
37,900
+19,300
| +104% | +$12.6M |
|
1920
ManpowerGroup
MAN
$2.74B
| $27.6M | ﹤0.01% |
936,054
-416,621
| -31% | -$12.4M |
|
1921
Crane NXT
CXT
$2.97B
| $27.6M | ﹤0.01% |
679,167
+560,099
| +470% | +$27.2M |
|
1922
PUT
HP
HPQ
$27.8B
| $27.5M | ﹤0.01% |
1,432,400
+341,300
| +31% | +$6.64M |
|
1923
CALL
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$141M
| $27.5M | ﹤0.01% |
770,100
+386,450
| +101% | +$11.5M |
|
1924
AerCap
AER
$23.8B
| $27.5M | ﹤0.01% |
200,185
-52,507
| -21% | -$7.51M |
|
1925
CALL
Sprouts Farmers Market
SFM
$7.73B
| $27.4M | ﹤0.01% |
354,800
+61,400
| +21% | +$4.58M |
|
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.