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 | |
|---|---|---|---|---|---|---|
|
STKE
12676
PUT
Sol Strategies Inc
STKE
$41.1M
| $13.3K | ﹤0.01% |
13,500
-2,500
| -16% | -$3.92K |
|
|
TEAD
12677
PUT
Teads Holding Co
TEAD
$64.4M
| $13.2K | ﹤0.01% |
20,100
+7,900
| +65% | +$5.61K |
|
12678
Rafael Holdings
RFL
$103M
| $13.2K | ﹤0.01% |
10,581
-30,822
| -74% | -$39.1K |
|
12679
PUT
Pulmonx
LUNG
$98.4M
| $13K | ﹤0.01% |
10,100
-8,800
| -47% | -$14.5K |
|
12680
PUT
Wheels Up
UP
$190M
| $12.9K | ﹤0.01% |
1,250
-3,120
| -71% | -$40.7K |
|
12681
Cosmos Holdings
COSM
$12.8M
| $12.8K | ﹤0.01% |
40,306
-82,850
| -67% | -$34.8K |
|
|
PWCM
12682
PowerCompute, Inc. Common Stock
PWCM
$1.42M
| $12.5K | ﹤0.01% |
+2,006
| New | +$19.1K |
|
12683
Nerdy
NRDY
$93.7M
| $12.5K | ﹤0.01% |
15,257
-221,995
| -94% | -$213K |
|
12684
Netcapital
NCPL
$2.58M
| $12.4K | ﹤0.01% |
+38,560
| New | +$22.4K |
|
|
TJGC
12685
TJGC Group Limited Class A Ordinary Shares
TJGC
$37.9M
| $12.2K | ﹤0.01% |
5,726
-11,043
| -66% | -$30.3K |
|
12686
Quantum-Si Incorporated
QSI
$172M
| $12K | ﹤0.01% |
15,546
-2,660,551
| -99% | -$2.76M |
|
12687
Onfolio Holdings
ONFO
$325K
| $12K | ﹤0.01% |
+344
| New | +$10.8K |
|
12688
Yatra Online
YTRA
$56M
| $11.9K | ﹤0.01% |
10,764
-31,028
| -74% | -$43.2K |
|
|
MWYN
12689
Marwynn Holdings
MWYN
$19.9M
| $11.7K | ﹤0.01% |
15,766
-106,670
| -87% | -$88.2K |
|
12690
CALL
Smith Micro Software
SMSI
$17M
| $11.7K | ﹤0.01% |
+3,240
| New | +$9.85K |
|
|
SGMO
12691
PUT
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
| $11.7K | ﹤0.01% |
47,200
-178,700
| -79% | -$71.1K |
|
12692
PUT
Rockwell Medical
RMTI
$29.6M
| $11.6K | ﹤0.01% |
+1,300
| New | +$12.9K |
|
|
WYHG
12693
Wing Yip Food Holdings
WYHG
$68.8M
| $11.3K | ﹤0.01% |
6,558
-6,565
| -50% | -$12.8K |
|
12694
ICZOOM Group
IZM
$3M
| $11.3K | ﹤0.01% |
+15,489
| New | +$16.8K |
|
12695
My Size
MYSZ
$2.28M
| $11.2K | ﹤0.01% |
+2,428
| New | +$13.2K |
|
12696
PUT
Accuray
ARAY
$32.9M
| $11.1K | ﹤0.01% |
28,600
-565,900
| -95% | -$350K |
|
|
CUPR
12697
Cuprina Holdings Cayman Ltd
CUPR
$8.31M
| $10.9K | ﹤0.01% |
+4,660
| New | +$15.2K |
|
12698
Erayak Power Solution Group
RAYA
$2.68M
| $10.8K | ﹤0.01% |
+2,916
| New | +$43.1K |
|
|
ORIO
12699
PUT
Orion Digital Corp
ORIO
$19.8M
| $10.7K | ﹤0.01% |
+11,400
| New | +$12.7K |
|
|
AIB
12700
AIB Data Centers
AIB
$138M
| $10.7K | ﹤0.01% |
+10,322
| New | +$17.4K |
|
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.