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 | |
|---|---|---|---|---|---|---|
|
SLNO
5626
PUT
DELISTED
Soleno Therapeutics
SLNO
| $2.45M | ﹤0.01% |
73,100
-124,400
| -63% | -$4.88M |
|
5627
Henry Schein
HSIC
$9.97B
| $2.45M | ﹤0.01% |
33,183
-163,567
| -83% | -$12.6M |
|
|
ASTX
5628
Tradr 2X Long ASTS Daily ETF
ASTX
$415M
| $2.44M | ﹤0.01% |
+67,125
| New | +$3.88M |
|
5629
CALL
Janus Henderson AAA CLO ETF
JAAA
$29.8B
| $2.44M | ﹤0.01% |
48,500
+400
| +0.8% | +$20.2K |
|
|
ALOY
5630
REalloys Inc
ALOY
$910M
| $2.44M | ﹤0.01% |
+250,130
| New | +$3.2M |
|
5631
Tenax Therapeutics
TENX
$71.1M
| $2.44M | ﹤0.01% |
152,516
+22,988
| +18% | +$311K |
|
|
ONC
5632
PUT
BeOne Medicines Ltd
ONC
$40.3B
| $2.44M | ﹤0.01% |
8,200
-6,800
| -45% | -$2.2M |
|
5633
ALPS Smith Core Plus Bond ETF
SMTH
$2.99B
| $2.44M | ﹤0.01% |
94,547
-53,595
| -36% | -$1.4M |
|
5634
CALL
Adeia
ADEA
$3.14B
| $2.43M | ﹤0.01% |
101,300
+61,900
| +157% | +$1.25M |
|
5635
Invesco CurrencyShares Swiss Franc Trust
FXF
$395M
| $2.43M | ﹤0.01% |
+22,030
| New | +$2.49M |
|
5636
Empire State Realty Trust
ESRT
$836M
| $2.43M | ﹤0.01% |
467,665
+206,239
| +79% | +$1.24M |
|
5637
PUT
Dentsply Sirona
XRAY
$2.3B
| $2.43M | ﹤0.01% |
209,600
+36,200
| +21% | +$451K |
|
5638
ONE Gas
OGS
$5.09B
| $2.43M | ﹤0.01% |
28,205
-118,699
| -81% | -$9.84M |
|
5639
CALL
Corebridge Financial
CRBG
$15.2B
| $2.43M | ﹤0.01% |
101,800
+58,600
| +136% | +$1.64M |
|
5640
PUT
Sigma Lithium
SGML
$1.28B
| $2.43M | ﹤0.01% |
196,800
+36,600
| +23% | +$468K |
|
5641
CALL
Pinnacle Financial Partners Inc
PNFP
$16.2B
| $2.43M | ﹤0.01% |
28,188
+9,488
| +51% | +$883K |
|
|
FLY
5642
Firefly Aerospace
FLY
$4.52B
| $2.43M | ﹤0.01% |
85,285
-224,187
| -72% | -$5.46M |
|
|
HDSN
5643
Hudson Technologies
HDSN
$239M
| $2.43M | ﹤0.01% |
412,750
+332,667
| +415% | +$2.28M |
|
5644
CALL
Mineralys Therapeutics
MLYS
$2.32B
| $2.42M | ﹤0.01% |
89,500
+29,900
| +50% | +$877K |
|
|
MCHB
5645
Mechanics Bancorp
MCHB
$3.79B
| $2.42M | ﹤0.01% |
164,362
-281,463
| -63% | -$4.17M |
|
5646
Innovator Nasdaq-100 Managed Floor ETF
QFLR
$531M
| $2.42M | ﹤0.01% |
+72,790
| New | +$2.5M |
|
|
MCW
5647
DELISTED
Mister Car Wash
MCW
| $2.42M | ﹤0.01% |
347,025
+103,251
| +42% | +$663K |
|
|
BSCY
5648
Invesco BulletShares 2034 Corporate Bond ETF
BSCY
$561M
| $2.42M | ﹤0.01% |
116,822
+83,374
| +249% | +$1.75M |
|
5649
CALL
Fortuna Silver Mines
FSM
$3.1B
| $2.42M | ﹤0.01% |
243,500
-209,900
| -46% | -$2.27M |
|
5650
Willdan Group
WLDN
$1.3B
| $2.42M | ﹤0.01% |
31,579
-44,979
| -59% | -$4.76M |
|
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.