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 | |
|---|---|---|---|---|---|---|
11451
PUT
Gran Tierra Energy
GTE
$336M
| $183K | ﹤0.01% |
+20,400
| New | +$129K |
|
|
TIC
11452
PUT
TIC Solutions Inc
TIC
$2.19B
| $183K | ﹤0.01% |
27,800
-5,745
| -17% | -$54K |
|
|
RMI
11453
RiverNorth Opportunistic Municipal Income Fund
RMI
$101M
| $183K | ﹤0.01% |
+12,129
| New | +$183K |
|
|
NIU
11454
Niu Technologies
NIU
$166M
| $183K | ﹤0.01% |
+63,170
| New | +$210K |
|
11455
CALL
Microvision
MVIS
$89.7M
| $183K | ﹤0.01% |
18,980
-2,840
| -13% | -$32.5K |
|
11456
Weibo
WB
$1.88B
| $182K | ﹤0.01% |
+20,853
| New | +$209K |
|
11457
PUT
Hagerty
HGTY
$1.32B
| $182K | ﹤0.01% |
17,300
-5,100
| -23% | -$59.5K |
|
11458
PUT
Seanergy Maritime Holdings
SHIP
$360M
| $182K | ﹤0.01% |
+14,100
| New | +$165K |
|
|
BCIC
11459
CALL
BCP Investment Corp
BCIC
$94.9M
| $182K | ﹤0.01% |
24,200
+300
| +1% | +$3.25K |
|
11460
PUT
Anavex Life Sciences
AVXL
$303M
| $182K | ﹤0.01% |
59,200
-162,900
| -73% | -$706K |
|
11461
PUT
Mitsubishi UFJ Financial
MUFG
$260B
| $182K | ﹤0.01% |
10,700
-13,400
| -56% | -$238K |
|
11462
PUT
Cushman & Wakefield Ltd
CWK
$3.37B
| $181K | ﹤0.01% |
+14,800
| New | +$212K |
|
|
SY
11463
PUT
So-Young International
SY
$221M
| $181K | ﹤0.01% |
66,400
-24,400
| -27% | -$73K |
|
11464
PUT
TaskUs
TASK
$667M
| $181K | ﹤0.01% |
27,000
-8,000
| -23% | -$84.6K |
|
|
PAMT
11465
PAMT Corp
PAMT
$285M
| $181K | ﹤0.01% |
21,383
+3,328
| +18% | +$35.5K |
|
11466
PUT
Xponential Fitness
XPOF
$206M
| $181K | ﹤0.01% |
30,000
-5,100
| -15% | -$36.9K |
|
11467
CALL
Geospace Technologies
GEOS
$66.5M
| $181K | ﹤0.01% |
14,800
-19,000
| -56% | -$265K |
|
11468
GameSquare
GAME
$39M
| $180K | ﹤0.01% |
667,001
-145,422
| -18% | -$50.2K |
|
11469
PUT
American Well
AMWL
$220M
| $180K | ﹤0.01% |
+34,200
| New | +$176K |
|
11470
PUT
Elicio Therapeutics
ELTX
$82.7M
| $180K | ﹤0.01% |
16,800
-1,600
| -9% | -$15.4K |
|
11471
PUT
Stem
STEM
$55.9M
| $179K | ﹤0.01% |
20,300
-3,200
| -14% | -$43K |
|
|
EEA
11472
European Equity Fund
EEA
$76.8M
| $179K | ﹤0.01% |
18,135
-6,214
| -26% | -$65.8K |
|
11473
PUT
Goldgroup Mining Inc.
GORO
$211M
| $179K | ﹤0.01% |
149,400
+91,500
| +158% | +$124K |
|
11474
IMGP Berkshire Dividend Growth ETF
BDVG
$20.2M
| $179K | ﹤0.01% |
13,684
-5,865
| -30% | -$77.9K |
|
11475
PUT
Embecta
EMBC
$290M
| $179K | ﹤0.01% |
20,200
+9,000
| +80% | +$93.8K |
|
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.