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 | |
|---|---|---|---|---|---|---|
6426
PUT
Apogee Therapeutics
APGE
$10.2B
| $1.68M | ﹤0.01% |
20,000
+4,200
| +27% | +$305K |
|
|
MMK
6427
State Street Prime Money Market ETF
MMK
$28M
| $1.68M | ﹤0.01% |
+16,777
| New | +$1.68M |
|
6428
PUT
Pampa Energía
PAM
$4.28B
| $1.68M | ﹤0.01% |
19,000
+2,200
| +13% | +$183K |
|
6429
CALL
Ingles Markets
IMKTA
$1.65B
| $1.68M | ﹤0.01% |
18,700
-1,600
| -8% | -$130K |
|
|
SFIX
6430
PUT
Stitch Fix
SFIX
$499M
| $1.68M | ﹤0.01% |
506,600
+289,100
| +133% | +$1.18M |
|
6431
CALL
Axos Financial
AX
$5.68B
| $1.68M | ﹤0.01% |
19,700
-19,900
| -50% | -$1.81M |
|
6432
CALL
State Street SPDR Dow Jones REIT ETF
RWR
$1.85B
| $1.68M | ﹤0.01% |
+16,600
| New | +$1.71M |
|
6433
PUT
CytomX Therapeutics
CTMX
$752M
| $1.68M | ﹤0.01% |
356,400
+305,200
| +596% | +$1.55M |
|
6434
CALL
Mercury Insurance
MCY
$5.86B
| $1.67M | ﹤0.01% |
19,000
+10,200
| +116% | +$912K |
|
6435
West Bancorporation
WTBA
$496M
| $1.67M | ﹤0.01% |
70,370
+20,496
| +41% | +$489K |
|
6436
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.11B
| $1.67M | ﹤0.01% |
+57,346
| New | +$1.68M |
|
6437
MillerKnoll
MLKN
$1.62B
| $1.67M | ﹤0.01% |
115,719
-337,786
| -74% | -$6.64M |
|
6438
CALL
Intrepid Potash
IPI
$496M
| $1.67M | ﹤0.01% |
39,100
-1,200
| -3% | -$43.1K |
|
6439
Pacer American Energy Infrastructure ETF
USAI
$133M
| $1.67M | ﹤0.01% |
35,545
+23,356
| +192% | +$1.01M |
|
6440
First Bank
FRBA
$464M
| $1.67M | ﹤0.01% |
104,346
+46,545
| +81% | +$762K |
|
6441
CALL
Element Solutions
ESI
$9.17B
| $1.67M | ﹤0.01% |
+48,900
| New | +$1.53M |
|
|
XZO
6442
Exzeo Group
XZO
$1.48B
| $1.67M | ﹤0.01% |
113,748
-326,252
| -74% | -$5.79M |
|
6443
iShares US Regional Banks ETF
IAT
$682M
| $1.67M | ﹤0.01% |
30,984
-2,491
| -7% | -$141K |
|
6444
CALL
NOV
NOV
$7.49B
| $1.67M | ﹤0.01% |
88,600
-25,100
| -22% | -$471K |
|
|
EPRX
6445
Eupraxia Pharmaceuticals
EPRX
$438M
| $1.67M | ﹤0.01% |
+230,176
| New | +$1.85M |
|
6446
Clearway Energy Class C
CWEN
$7.08B
| $1.67M | ﹤0.01% |
42,407
-277,855
| -87% | -$10.4M |
|
6447
CALL
Leonardo DRS
DRS
$11.9B
| $1.67M | ﹤0.01% |
37,400
-65,400
| -64% | -$2.76M |
|
6448
BlackRock Intermediate Muni Income Bond ETF
INMU
$547M
| $1.66M | ﹤0.01% |
+69,634
| New | +$1.69M |
|
6449
CALL
Sprott Copper Miners ETF
COPP
$292M
| $1.66M | ﹤0.01% |
+46,600
| New | +$1.81M |
|
6450
CALL
ARK Autonomous Technology & Robotics ETF
ARKQ
$2.07B
| $1.66M | ﹤0.01% |
14,800
+2,700
| +22% | +$332K |
|
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.