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 | |
|---|---|---|---|---|---|---|
5126
ThredUp
TDUP
$416M
| $3.16M | ﹤0.01% |
963,215
+294,495
| +44% | +$1.37M |
|
5127
PUT
ASP Isotopes
ASPI
$539M
| $3.16M | ﹤0.01% |
714,500
+82,000
| +13% | +$485K |
|
|
GRMN
5128
PUT
Garmin
GRMN
$60.2B
| $3.16M | ﹤0.01% |
13,600
-9,500
| -41% | -$2.13M |
|
|
BSCZ
5129
Invesco BulletShares 2035 Corporate Bond ETF
BSCZ
$278M
| $3.16M | ﹤0.01% |
+153,760
| New | +$3.19M |
|
5130
Herbalife
HLF
$1.28B
| $3.15M | ﹤0.01% |
214,320
-111,984
| -34% | -$1.83M |
|
5131
CALL
East-West Bancorp
EWBC
$18.6B
| $3.15M | ﹤0.01% |
29,500
+13,300
| +82% | +$1.5M |
|
5132
CALL
AMN Healthcare
AMN
$1.34B
| $3.15M | ﹤0.01% |
171,700
+148,400
| +637% | +$2.82M |
|
|
DX
5133
CALL
Dynex Capital
DX
$3.23B
| $3.15M | ﹤0.01% |
246,500
+234,000
| +1,872% | +$3.22M |
|
5134
Franklin International Core Dividend Tilt Index ETF
DIVI
$2.78B
| $3.14M | ﹤0.01% |
+78,948
| New | +$3.22M |
|
5135
PUT
NewMarket
NEU
$8.72B
| $3.14M | ﹤0.01% |
4,900
+3,000
| +158% | +$1.95M |
|
5136
Hafnia
HAFN
$3.8B
| $3.14M | ﹤0.01% |
412,894
+230,228
| +126% | +$1.53M |
|
5137
JPMorgan Diversified Return Emerging Markets Equity ETF
JPEM
$390M
| $3.14M | ﹤0.01% |
+50,492
| New | +$3.22M |
|
5138
PUT
Inspire Medical Systems
INSP
$1.68B
| $3.14M | ﹤0.01% |
60,800
+25,500
| +72% | +$1.79M |
|
5139
PUT
Teucrium Wheat Fund
WEAT
$297M
| $3.14M | ﹤0.01% |
133,020
+121,840
| +1,090% | +$2.62M |
|
5140
Direxion Daily TSLA Bear 1X ETF
TSLS
$73.8M
| $3.13M | ﹤0.01% |
+51,993
| New | +$2.87M |
|
|
WAY
5141
Waystar Holding Corp
WAY
$4.81B
| $3.13M | ﹤0.01% |
129,975
+35,081
| +37% | +$931K |
|
5142
First Trust Multi Cap Value AlphaDEX Fund
FAB
$178M
| $3.13M | ﹤0.01% |
33,139
+24,609
| +288% | +$2.33M |
|
|
FERA
5143
Fifth Era Acquisition Corp I
FERA
$327M
| $3.13M | ﹤0.01% |
303,880
-199,983
| -40% | -$2.06M |
|
5144
iRadimed
IRMD
$1.11B
| $3.13M | ﹤0.01% |
32,504
-23,254
| -42% | -$2.33M |
|
5145
Orion Group Holdings
ORN
$392M
| $3.13M | ﹤0.01% |
286,828
+111,238
| +63% | +$1.33M |
|
5146
Banco Bilbao Vizcaya Argentaria
BBVA
$158B
| $3.12M | ﹤0.01% |
144,260
+126,311
| +704% | +$2.92M |
|
|
SLDE
5147
CALL
Slide Insurance Holdings
SLDE
$2.52B
| $3.12M | ﹤0.01% |
173,500
+28,600
| +20% | +$501K |
|
5148
PUT
BlackSky Technology
BKSY
$1.27B
| $3.12M | ﹤0.01% |
124,000
-121,200
| -49% | -$2.9M |
|
5149
PUT
Hertz
HTZ
$838M
| $3.12M | ﹤0.01% |
676,600
-3,445,200
| -84% | -$16.7M |
|
5150
First Interstate BancSystem
FIBK
$3.7B
| $3.12M | ﹤0.01% |
93,374
-107,441
| -54% | -$3.84M |
|
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.