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 | |
|---|---|---|---|---|---|---|
|
CWAN
451
DELISTED
Clearwater Analytics
CWAN
| $200M | 0.03% |
8,441,416
+7,298,092
| +638% | +$173M |
|
452
Boeing
BA
$182B
| $199M | 0.03% |
1,001,461
-1,041,422
| -51% | -$237M |
|
453
PUT
KLA
KLAC
$273B
| $198M | 0.03% |
1,346,000
-1,331,000
| -50% | -$195M |
|
454
PUT
Bristol-Myers Squibb
BMY
$132B
| $197M | 0.03% |
3,253,900
-694,300
| -18% | -$40.5M |
|
455
Abbott
ABT
$192B
| $197M | 0.03% |
1,915,846
-164,188
| -8% | -$18.5M |
|
456
DigitalOcean
DOCN
$15.7B
| $196M | 0.03% |
2,288,221
+261,760
| +13% | +$16.5M |
|
457
CALL
Arista Networks
ANET
$258B
| $196M | 0.03% |
1,593,200
-1,308,900
| -45% | -$175M |
|
458
PUT
Super Micro Computer
SMCI
$25.5B
| $195M | 0.03% |
8,553,900
-2,196,400
| -20% | -$65.9M |
|
459
Danaher
DHR
$144B
| $195M | 0.03% |
1,026,347
-501,301
| -33% | -$107M |
|
|
460
Visa
V
$680B
| $194M | 0.03% |
642,304
-3,911,480
| -86% | -$1.26B |
|
461
CALL
Baidu
BIDU
$35.5B
| $194M | 0.03% |
1,741,700
-1,206,100
| -41% | -$164M |
|
|
JHG
462
DELISTED
Janus Henderson
JHG
| $194M | 0.03% |
3,772,619
+3,613,482
| +2,271% | +$179M |
|
463
CALL
Analog Devices
ADI
$186B
| $193M | 0.03% |
606,600
-470,200
| -44% | -$150M |
|
464
CALL
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.69B
| $192M | 0.03% |
1,057,200
+334,900
| +46% | +$50.4M |
|
465
3M
MMM
$94.2B
| $192M | 0.03% |
1,321,071
+708,473
| +116% | +$113M |
|
466
CALL
Capital One
COF
$137B
| $191M | 0.03% |
1,049,531
+30,251
| +3% | +$6.33M |
|
467
CALL
Nu Holdings
NU
$67.4B
| $191M | 0.03% |
13,323,400
-2,057,200
| -13% | -$33.3M |
|
|
NBIS
468
PUT
Nebius Group N.V.
NBIS
$68.6B
| $191M | 0.03% |
1,839,300
-1,174,700
| -39% | -$117M |
|
469
Wyndham Hotels & Resorts
WH
$5.49B
| $191M | 0.03% |
2,346,198
+274,401
| +13% | +$21.5M |
|
|
OKLO
470
CALL
Oklo
OKLO
$8.67B
| $190M | 0.03% |
3,840,000
-497,000
| -11% | -$35.7M |
|
471
CDW
CDW
$17.7B
| $190M | 0.03% |
1,572,738
+557,995
| +55% | +$70.5M |
|
472
Consolidated Edison
ED
$40.1B
| $188M | 0.03% |
1,660,514
+636,770
| +62% | +$69M |
|
473
CALL
TeraWulf
WULF
$8.1B
| $188M | 0.03% |
13,015,600
-290,900
| -2% | -$4.31M |
|
474
PUT
GE Aerospace
GE
$373B
| $187M | 0.03% |
660,100
-814,400
| -55% | -$256M |
|
475
PUT
State Street Utilities Select Sector SPDR ETF
XLU
$22.9B
| $187M | 0.03% |
4,068,800
-1,407,200
| -26% | -$63.1M |
|
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.