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 | |
|---|---|---|---|---|---|---|
2251
CALL
C3.ai
AI
$1.54B
| $21.1M | ﹤0.01% |
2,501,100
-288,300
| -10% | -$3.09M |
|
|
GRMN
2252
CALL
Garmin
GRMN
$59.8B
| $21M | ﹤0.01% |
90,700
+21,500
| +31% | +$4.81M |
|
2253
Dollar General
DG
$27.2B
| $21M | ﹤0.01% |
177,143
-439,652
| -71% | -$62.7M |
|
2254
Host Hotels & Resorts
HST
$15.7B
| $21M | ﹤0.01% |
1,097,274
-3,283,587
| -75% | -$62.7M |
|
|
YSS
2255
York Space Systems
YSS
$1.41B
| $21M | ﹤0.01% |
+947,893
| New | +$23M |
|
2256
CALL
Carlyle Group
CG
$17.6B
| $21M | ﹤0.01% |
433,600
+131,800
| +44% | +$7.27M |
|
2257
Calix
CALX
$2.49B
| $21M | ﹤0.01% |
428,198
+382,357
| +834% | +$20.1M |
|
2258
Agios Pharmaceuticals
AGIO
$2B
| $21M | ﹤0.01% |
619,613
-729,355
| -54% | -$20.7M |
|
2259
CALL
CarMax
KMX
$8.5B
| $20.9M | ﹤0.01% |
503,700
-152,900
| -23% | -$6.69M |
|
2260
Assurant
AIZ
$13.9B
| $20.9M | ﹤0.01% |
96,059
+75,577
| +369% | +$17.2M |
|
2261
Champion Homes
SKY
$5.13B
| $20.9M | ﹤0.01% |
281,302
-115,646
| -29% | -$9.96M |
|
2262
Sharplink Inc
SBET
$1.36B
| $20.9M | ﹤0.01% |
3,241,034
+730,751
| +29% | +$5.91M |
|
|
AUGO
2263
Aura Minerals Inc
AUGO
$6.37B
| $20.9M | ﹤0.01% |
256,150
-115,629
| -31% | -$8.1M |
|
2264
PUT
VanEck Uranium + Nuclear Energy ETF
NLR
$4.18B
| $20.9M | ﹤0.01% |
156,600
+113,400
| +263% | +$16.2M |
|
2265
CALL
DexCom
DXCM
$33.9B
| $20.9M | ﹤0.01% |
332,100
-631,300
| -66% | -$44M |
|
|
SPLS
2266
PIMCO US Stocks PLUS Active Bond ETF
SPLS
$46.1M
| $20.8M | ﹤0.01% |
+442,917
| New | +$21.7M |
|
2267
Nurix Therapeutics
NRIX
$2.81B
| $20.8M | ﹤0.01% |
1,343,700
+190,770
| +17% | +$3.16M |
|
2268
PUT
ProShares Ultra Bloomberg Crude Oil
UCO
$430M
| $20.8M | ﹤0.01% |
529,800
+397,800
| +301% | +$11M |
|
2269
B2Gold
BTG
$6.79B
| $20.8M | ﹤0.01% |
4,593,970
+1,151,341
| +33% | +$5.78M |
|
2270
Alliant Energy
LNT
$18.3B
| $20.8M | ﹤0.01% |
289,946
-362,695
| -56% | -$25M |
|
2271
CALL
NRG Energy
NRG
$26.5B
| $20.8M | ﹤0.01% |
142,200
-227,400
| -62% | -$35.8M |
|
2272
CALL
SiTime
SITM
$21.4B
| $20.8M | ﹤0.01% |
60,100
-7,700
| -11% | -$2.83M |
|
2273
Ardelyx
ARDX
$1.05B
| $20.8M | ﹤0.01% |
3,464,774
+2,137,321
| +161% | +$14.1M |
|
|
WRD
2274
WeRide Inc
WRD
$1.92B
| $20.7M | ﹤0.01% |
2,563,268
+389,894
| +18% | +$3.02M |
|
2275
CALL
iShares National Muni Bond ETF
MUB
$45.8B
| $20.7M | ﹤0.01% |
195,300
+148,000
| +313% | +$15.9M |
|
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.