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 | |
|---|---|---|---|---|---|---|
776
CALL
Credo Technology Group
CRDO
$50.7B
| $104M | 0.02% |
1,106,800
+152,100
| +16% | +$18.5M |
|
777
CALL
Rio Tinto
RIO
$160B
| $104M | 0.02% |
1,112,100
+237,800
| +27% | +$21.7M |
|
778
State Street
STT
$52.2B
| $104M | 0.02% |
818,512
+337,843
| +70% | +$43.2M |
|
|
TMHC
779
DELISTED
Taylor Morrison
TMHC
| $103M | 0.02% |
1,775,187
+1,291,179
| +267% | +$80.7M |
|
780
PUT
MongoDB
MDB
$37.5B
| $103M | 0.02% |
421,700
-709,800
| -63% | -$237M |
|
781
Coeur Mining
CDE
$18.9B
| $103M | 0.02% |
5,488,530
+3,348,649
| +156% | +$72.9M |
|
782
CALL
United Therapeutics
UTHR
$21.5B
| $103M | 0.02% |
173,400
+104,900
| +153% | +$52.2M |
|
783
Liberty Media Series C
FWONK
$26B
| $103M | 0.02% |
1,206,591
-57,728
| -5% | -$5.05M |
|
784
PUT
Philip Morris
PM
$294B
| $103M | 0.02% |
620,000
-91,500
| -13% | -$15.9M |
|
785
iShares 20+ Year Treasury Bond ETF
TLT
$40.8B
| $102M | 0.02% |
+1,182,018
| New | +$104M |
|
786
Ferguson
FERG
$47.7B
| $102M | 0.02% |
439,269
+420,568
| +2,249% | +$102M |
|
|
AXON
787
PUT
Axon Enterprise
AXON
$49.8B
| $102M | 0.02% |
240,800
+49,000
| +26% | +$25.5M |
|
|
CRWV
788
CoreWeave
CRWV
$59.5B
| $102M | 0.02% |
1,319,157
+517,056
| +64% | +$44.9M |
|
789
CALL
Johnson Controls International
JCI
$92.2B
| $102M | 0.02% |
778,800
+173,300
| +29% | +$22.4M |
|
790
Dutch Bros
BROS
$9B
| $102M | 0.02% |
2,006,953
+1,383,495
| +222% | +$75.7M |
|
791
Devon Energy
DVN
$48.8B
| $102M | 0.02% |
2,018,174
-831,510
| -29% | -$35.7M |
|
|
BMNR
792
PUT
BitMine Immersion Technologies
BMNR
$10.9B
| $101M | 0.02% |
5,131,000
-1,480,800
| -22% | -$34.9M |
|
793
PUT
iShares MSCI USA Momentum Factor ETF
MTUM
$26.2B
| $101M | 0.02% |
422,700
+328,600
| +349% | +$82.6M |
|
794
Nokia
NOK
$59.3B
| $101M | 0.02% |
12,597,252
-3,340,406
| -21% | -$24.5M |
|
795
PennyMac Financial
PFSI
$4.16B
| $101M | 0.02% |
1,158,148
+732,864
| +172% | +$78.8M |
|
796
CALL
Boston Scientific
BSX
$75.1B
| $101M | 0.02% |
1,611,900
+951,300
| +144% | +$76.1M |
|
797
PUT
Ciena
CIEN
$63.9B
| $101M | 0.02% |
260,400
-12,400
| -5% | -$3.79M |
|
798
H&R Block
HRB
$6.79B
| $101M | 0.02% |
3,183,175
+1,584,227
| +99% | +$55.2M |
|
799
Hyatt Hotels
H
$16.8B
| $101M | 0.02% |
700,632
-331,693
| -32% | -$52.6M |
|
|
NVO
800
Novo Nordisk
NVO
$202B
| $101M | 0.02% |
2,736,525
-4,674,398
| -63% | -$221M |
|
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.