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 | |
|---|---|---|---|---|---|---|
2726
Sarepta Therapeutics
SRPT
$1.91B
| $14.2M | ﹤0.01% |
652,169
+533,436
| +449% | +$10.3M |
|
2727
PUT
CleanSpark
CLSK
$3.1B
| $14.2M | ﹤0.01% |
1,666,400
+185,300
| +13% | +$1.98M |
|
|
VISN
2728
CALL
Vistance Networks Inc
VISN
$2.66B
| $14.2M | ﹤0.01% |
778,800
-73,600
| -9% | -$1.34M |
|
2729
PUT
Coca-Cola Consolidated
COKE
$12.6B
| $14.2M | ﹤0.01% |
73,900
+60,000
| +432% | +$10.5M |
|
2730
CALL
Vail Resorts
MTN
$5.28B
| $14.2M | ﹤0.01% |
110,400
+12,900
| +13% | +$1.76M |
|
2731
PUT
Edison International
EIX
$27.5B
| $14.2M | ﹤0.01% |
193,500
-41,000
| -17% | -$2.76M |
|
|
USAR
2732
USA Rare Earth Inc
USAR
$4.89B
| $14.2M | ﹤0.01% |
935,167
+366,370
| +64% | +$7.11M |
|
2733
American Homes 4 Rent
AMH
$12.3B
| $14.1M | ﹤0.01% |
506,799
-119,049
| -19% | -$3.6M |
|
2734
CALL
Murphy USA
MUSA
$10.5B
| $14.1M | ﹤0.01% |
28,600
+19,400
| +211% | +$8.31M |
|
2735
CALL
Mueller Industries
MLI
$14.6B
| $14.1M | ﹤0.01% |
255,000
+231,200
| +971% | +$13.9M |
|
|
LB
2736
LandBridge Co
LB
$2.24B
| $14.1M | ﹤0.01% |
204,233
-20,497
| -9% | -$1.3M |
|
2737
Huazhu Hotels Group
HTHT
$12.9B
| $14.1M | ﹤0.01% |
280,258
-340,460
| -55% | -$17.4M |
|
2738
Hexcel
HXL
$7.87B
| $14.1M | ﹤0.01% |
173,882
-342,623
| -66% | -$28.9M |
|
2739
CALL
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$252M
| $14.1M | ﹤0.01% |
317,800
+96,000
| +43% | +$2.98M |
|
|
TPC
2740
Tutor Perini Cor
TPC
$5.09B
| $14M | ﹤0.01% |
181,429
-6,897
| -4% | -$528K |
|
2741
PUT
Vulcan Materials
VMC
$36.5B
| $14M | ﹤0.01% |
51,400
+42,200
| +459% | +$12.4M |
|
2742
CALL
Viavi Solutions
VIAV
$10.7B
| $14M | ﹤0.01% |
420,300
+23,100
| +6% | +$611K |
|
2743
Sony
SONY
$142B
| $14M | ﹤0.01% |
674,519
-4,185,843
| -86% | -$93.8M |
|
2744
PUT
Bank of Montreal
BMO
$130B
| $13.9M | ﹤0.01% |
103,000
-412,500
| -80% | -$57.3M |
|
2745
PUT
Viking Therapeutics
VKTX
$3.87B
| $13.9M | ﹤0.01% |
428,300
-507,300
| -54% | -$16.3M |
|
2746
CALL
Direxion Daily NVDA Bull 2X ETF
NVDU
$636M
| $13.9M | ﹤0.01% |
144,500
-90,100
| -38% | -$10M |
|
2747
CALL
TechnipFMC
FTI
$30.8B
| $13.9M | ﹤0.01% |
201,500
-7,800
| -4% | -$469K |
|
2748
PUT
CACI
CACI
$14.8B
| $13.9M | ﹤0.01% |
25,600
+14,300
| +127% | +$8.61M |
|
2749
PUT
Builders FirstSource
BLDR
$7.8B
| $13.9M | ﹤0.01% |
168,700
-64,800
| -28% | -$6.92M |
|
|
BOBS
2750
Bobs Discount Furniture
BOBS
$2.47B
| $13.9M | ﹤0.01% |
+1,181,193
| New | +$20.2M |
|
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.