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 | |
|---|---|---|---|---|---|---|
1701
PUT
SolarEdge
SEDG
$1.98B
| $34.4M | 0.01% |
673,200
-268,700
| -29% | -$10.1M |
|
1702
PUT
Medtronic
MDT
$116B
| $34.4M | 0.01% |
396,500
-493,400
| -55% | -$47.3M |
|
1703
UiPath
PATH
$8.64B
| $34.3M | 0.01% |
3,090,411
+886,342
| +40% | +$11.3M |
|
1704
PUT
Abbott
ABT
$193B
| $34.1M | 0.01% |
332,600
-316,800
| -49% | -$35.8M |
|
1705
PUT
Semtech
SMTC
$12.4B
| $34.1M | 0.01% |
444,000
+268,400
| +153% | +$22.1M |
|
1706
CALL
Blue Owl Capital
OWL
$19.7B
| $34.1M | 0.01% |
3,730,700
+2,321,200
| +165% | +$28.1M |
|
1707
PUT
Domino's
DPZ
$11.6B
| $34M | 0.01% |
94,900
+8,300
| +10% | +$3.28M |
|
1708
CALL
abrdn Physical Silver Shares ETF
SIVR
$4.47B
| $34M | 0.01% |
475,100
+243,900
| +105% | +$19.5M |
|
1709
Crown Holdings
CCK
$13.1B
| $34M | 0.01% |
338,966
-474,741
| -58% | -$50.7M |
|
1710
CALL
eBay
EBAY
$46.5B
| $33.9M | 0.01% |
372,400
-316,900
| -46% | -$28.5M |
|
1711
CALL
Dave Inc
DAVE
$4.26B
| $33.9M | 0.01% |
194,700
-11,500
| -6% | -$2.23M |
|
1712
Mirion Technologies
MIR
$3.88B
| $33.9M | 0.01% |
1,823,252
+202,459
| +12% | +$4.57M |
|
1713
PUT
Duke Energy
DUK
$97.1B
| $33.9M | 0.01% |
258,600
-67,500
| -21% | -$8.44M |
|
1714
Rivian
RIVN
$22.9B
| $33.9M | 0.01% |
2,249,760
+1,247,088
| +124% | +$19.9M |
|
1715
iShares National Muni Bond ETF
MUB
$45.9B
| $33.7M | 0.01% |
+317,700
| New | +$34.2M |
|
1716
PUT
Generac Holdings
GNRC
$12.8B
| $33.7M | 0.01% |
172,600
-71,700
| -29% | -$13.8M |
|
1717
PUT
Peabody Energy
BTU
$2.94B
| $33.7M | 0.01% |
1,022,400
-1,505,200
| -60% | -$52.6M |
|
|
QXO
1718
QXO Inc
QXO
$16.1B
| $33.7M | 0.01% |
1,734,239
+1,632,444
| +1,604% | +$37.3M |
|
1719
PUT
IonQ
IONQ
$18.2B
| $33.6M | 0.01% |
1,166,500
-569,500
| -33% | -$21.9M |
|
|
GLXY
1720
Galaxy Digital Inc
GLXY
$4.07B
| $33.6M | 0.01% |
1,821,930
+412,798
| +29% | +$9.81M |
|
1721
Concentrix
CNXC
$1.52B
| $33.6M | 0.01% |
1,226,979
+1,124,167
| +1,093% | +$39.9M |
|
1722
Comfort Systems
FIX
$60.8B
| $33.5M | 0.01% |
24,295
+15,156
| +166% | +$19.2M |
|
1723
CALL
Calumet Specialty Products
CLMT
$4.29B
| $33.5M | 0.01% |
932,200
-225,200
| -19% | -$5.83M |
|
1724
Fortis
FTS
$28.7B
| $33.4M | 0.01% |
598,381
+252,189
| +73% | +$13.9M |
|
1725
CALL
Hershey
HSY
$37.4B
| $33.4M | 0.01% |
160,500
-126,500
| -44% | -$26.7M |
|
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.