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 | |
|---|---|---|---|---|---|---|
351
PUT
Blackstone
BX
$110B
| $255M | 0.04% |
2,221,600
+285,700
| +15% | +$37.2M |
|
352
PUT
Iris Energy
IREN
$14.2B
| $255M | 0.04% |
7,448,400
-2,981,300
| -29% | -$135M |
|
353
PUT
Shopify
SHOP
$196B
| $255M | 0.04% |
2,149,700
-181,300
| -8% | -$23.8M |
|
354
BioMarin Pharmaceuticals
BMRN
$13.5B
| $255M | 0.04% |
4,512,634
+3,147,943
| +231% | +$184M |
|
355
Capital One
COF
$134B
| $255M | 0.04% |
1,396,245
+861,806
| +161% | +$180M |
|
356
CALL
AT&T
T
$168B
| $254M | 0.04% |
8,769,300
+3,620,800
| +70% | +$96.7M |
|
357
CALL
Pfizer
PFE
$152B
| $252M | 0.04% |
8,992,100
-1,021,600
| -10% | -$27.2M |
|
358
Cencora
COR
$63.7B
| $251M | 0.04% |
797,827
+745,272
| +1,418% | +$260M |
|
359
Entergy
ETR
$49.7B
| $251M | 0.04% |
2,230,579
+465,209
| +26% | +$46.8M |
|
360
PUT
Coca-Cola
KO
$372B
| $250M | 0.04% |
3,291,200
+332,800
| +11% | +$25.2M |
|
361
Gaming and Leisure Properties
GLPI
$12.4B
| $248M | 0.04% |
5,589,327
-1,392,413
| -20% | -$64.5M |
|
362
Cintas
CTAS
$82.1B
| $248M | 0.04% |
1,465,168
+815,211
| +125% | +$156M |
|
363
CALL
Texas Instruments
TXN
$257B
| $247M | 0.04% |
1,274,600
-2,101,400
| -62% | -$425M |
|
364
CALL
Super Micro Computer
SMCI
$20.4B
| $247M | 0.04% |
10,838,500
+458,500
| +4% | +$13.8M |
|
365
PUT
Corning
GLW
$137B
| $246M | 0.04% |
1,807,100
+119,800
| +7% | +$14.4M |
|
366
PUT
Delta Air Lines
DAL
$59.5B
| $245M | 0.04% |
3,692,700
-241,300
| -6% | -$16.2M |
|
367
CALL
Shell
SHEL
$250B
| $244M | 0.04% |
2,625,800
+196,800
| +8% | +$15.9M |
|
|
BMNR
368
BitMine Immersion Technologies
BMNR
$10.9B
| $244M | 0.04% |
12,331,509
+5,923,450
| +92% | +$140M |
|
369
CALL
KLA
KLAC
$262B
| $243M | 0.04% |
1,652,000
+246,000
| +17% | +$36M |
|
370
Hubbell
HUBB
$27.5B
| $243M | 0.04% |
495,392
+483,550
| +4,083% | +$238M |
|
371
Twilio
TWLO
$39.3B
| $243M | 0.04% |
1,930,352
-10,305
| -0.5% | -$1.27M |
|
|
SCHW
372
Charles Schwab
SCHW
$186B
| $239M | 0.04% |
2,547,748
-2,183,360
| -46% | -$214M |
|
373
Dell
DELL
$285B
| $239M | 0.04% |
1,458,564
-396,437
| -21% | -$52.8M |
|
374
STMicroelectronics
STM
$49.1B
| $239M | 0.04% |
6,909,118
+5,413,407
| +362% | +$169M |
|
375
Dominion Energy
D
$59.9B
| $239M | 0.04% |
3,859,121
+3,660,775
| +1,846% | +$226M |
|
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.