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 | |
|---|---|---|---|---|---|---|
2651
PUT
Roper Technologies
ROP
$39.5B
| $15.1M | ﹤0.01% |
42,600
+16,200
| +61% | +$5.98M |
|
2652
Celcuity
CELC
$4.5B
| $15.1M | ﹤0.01% |
131,906
+84,869
| +180% | +$9.25M |
|
2653
POET Technologies
POET
$1.65B
| $15M | ﹤0.01% |
2,529,834
+1,851,618
| +273% | +$12M |
|
2654
CALL
Sprott Uranium Miners ETF
URNM
$2B
| $15M | ﹤0.01% |
237,800
+34,900
| +17% | +$2.38M |
|
2655
PUT
Direxion Daily FTSE China Bull 3X ETF
YINN
$653M
| $15M | ﹤0.01% |
457,400
-42,600
| -9% | -$1.74M |
|
2656
PUT
ImmunityBio
IBRX
$8.02B
| $15M | ﹤0.01% |
1,954,100
+1,327,900
| +212% | +$9.09M |
|
|
DFAI
2657
Dimensional International Core Equity Market ETF
DFAI
$18B
| $15M | ﹤0.01% |
384,681
+374,238
| +3,584% | +$15M |
|
2658
CALL
Ameriprise Financial
AMP
$50.3B
| $15M | ﹤0.01% |
33,700
-12,200
| -27% | -$5.88M |
|
2659
PUT
Kohl's
KSS
$2.18B
| $15M | ﹤0.01% |
1,160,900
-460,200
| -28% | -$7.76M |
|
2660
Rigetti Computing
RGTI
$6.28B
| $15M | ﹤0.01% |
1,064,828
+517,435
| +95% | +$9.71M |
|
2661
DoubleVerify
DV
$2.04B
| $14.9M | ﹤0.01% |
1,573,582
+99,659
| +7% | +$1.02M |
|
2662
Huntington Ingalls Industries
HII
$12.9B
| $14.9M | ﹤0.01% |
39,288
+30,545
| +349% | +$12.6M |
|
2663
PUT
Trump Media & Technology Group
DJT
$2.3B
| $14.9M | ﹤0.01% |
1,606,200
-1,930,100
| -55% | -$22.2M |
|
|
HTO
2664
CALL
H2O America
HTO
$2.67B
| $14.9M | ﹤0.01% |
253,900
+245,000
| +2,753% | +$13.3M |
|
2665
Perspective Therapeutics
CATX
$365M
| $14.9M | ﹤0.01% |
3,566,504
+3,296,013
| +1,219% | +$13.9M |
|
2666
CALL
Viatris
VTRS
$18.6B
| $14.9M | ﹤0.01% |
1,100,500
+886,500
| +414% | +$12.4M |
|
2667
CALL
ARK Genomic Revolution ETF
ARKG
$1.74B
| $14.9M | ﹤0.01% |
562,500
-248,400
| -31% | -$7.27M |
|
2668
Vertical Aerospace
EVTL
$142M
| $14.8M | ﹤0.01% |
6,714,867
+6,514,620
| +3,253% | +$29.6M |
|
2669
Healthcare Realty
HR
$6.6B
| $14.8M | ﹤0.01% |
871,719
-738,735
| -46% | -$13M |
|
2670
CALL
EnerSys
ENS
$7.34B
| $14.8M | ﹤0.01% |
85,200
+45,700
| +116% | +$7.74M |
|
2671
CALL
Keurig Dr Pepper
KDP
$42.8B
| $14.8M | ﹤0.01% |
561,500
-104,400
| -16% | -$2.93M |
|
2672
Monolithic Power Systems
MPWR
$68.9B
| $14.8M | ﹤0.01% |
13,512
+2,283
| +20% | +$2.49M |
|
2673
Vanguard Total International Bond ETF
BNDX
$82.7B
| $14.8M | ﹤0.01% |
+307,198
| New | +$14.9M |
|
2674
CALL
Domino's
DPZ
$11.5B
| $14.7M | ﹤0.01% |
41,100
-57,200
| -58% | -$22.6M |
|
2675
CALL
NewMarket
NEU
$8.85B
| $14.7M | ﹤0.01% |
23,000
+21,300
| +1,253% | +$13.8M |
|
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.