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 | |
|---|---|---|---|---|---|---|
12626
Cognition Therapeutics
CGTX
$98.9M
| $19.7K | ﹤0.01% |
25,905
-135,296
| -84% | -$157K |
|
|
LPRO
12627
CALL
DELISTED
Open Lending Corp
LPRO
| $19.6K | ﹤0.01% |
15,700
-4,300
| -22% | -$6.8K |
|
|
SOPA
12628
DELISTED
Society Pass
SOPA
| $19.5K | ﹤0.01% |
+45,231
| New | +$63.3K |
|
|
NCNA
12629
NuCana
NCNA
$6.16M
| $19.5K | ﹤0.01% |
+13,855
| New | +$33.4K |
|
12630
PUT
Standard BioTools
LAB
$312M
| $19.5K | ﹤0.01% |
+21,200
| New | +$25.7K |
|
|
BULG
12631
PUT
Leverage Shares 2X Long BULL Daily ETF
BULG
$7.02M
| $19.4K | ﹤0.01% |
935
+115
| +14% | +$5K |
|
|
OPENW
12632
Opendoor Technologies Inc Series K Warrants
OPENW
$6.98M
| $19.2K | ﹤0.01% |
31,650
-114,014
| -78% | -$102K |
|
12633
Grove Collaborative
GROV
$44.4M
| $19K | ﹤0.01% |
+14,822
| New | +$20.2K |
|
12634
GrowGeneration
GRWG
$105M
| $19K | ﹤0.01% |
17,228
-258,440
| -94% | -$322K |
|
12635
Fathom Holdings
FTHM
$23.1M
| $18.8K | ﹤0.01% |
35,477
-60,042
| -63% | -$60.1K |
|
|
YQ
12636
17 Education & Technology Group
YQ
$24.1M
| $18.8K | ﹤0.01% |
+10,436
| New | +$32.7K |
|
|
TOPP
12637
Toppoint Holdings
TOPP
$6.2M
| $18.6K | ﹤0.01% |
+26,368
| New | +$21.3K |
|
12638
SenesTech
SNES
$6.86M
| $18.6K | ﹤0.01% |
11,319
-67,020
| -86% | -$135K |
|
|
STEX
12639
Streamex Corp
STEX
$87.3M
| $18.3K | ﹤0.01% |
+16,196
| New | +$41.2K |
|
12640
PUT
SkinHealth Systems
SKIN
$84.2M
| $18.2K | ﹤0.01% |
20,500
-10,000
| -33% | -$12.3K |
|
|
PLG
12641
CALL
Platinum Group Metals
PLG
$189M
| $18.2K | ﹤0.01% |
10,300
-138,300
| -93% | -$335K |
|
|
QNME
12642
Quanome Technologies, Inc. Common Stock
QNME
$19.3M
| $18.2K | ﹤0.01% |
26,049
+3,261
| +14% | +$2.59K |
|
12643
Westwater Resources
WWR
$75.2M
| $18.2K | ﹤0.01% |
27,759
-301,363
| -92% | -$271K |
|
|
OGI
12644
Organigram Holdings
OGI
$177M
| $18.1K | ﹤0.01% |
13,487
-485,265
| -97% | -$721K |
|
|
AIFU
12645
AIFU Inc
AIFU
$218M
| $17.8K | ﹤0.01% |
+641
| New | +$26K |
|
|
SACH
12646
CALL
Sachem Capital Corp
SACH
$38.4M
| $17.7K | ﹤0.01% |
17,500
-8,700
| -33% | -$8.95K |
|
12647
CALL
Rockwell Medical
RMTI
$29.6M
| $17.5K | ﹤0.01% |
1,960
-2,420
| -55% | -$24.1K |
|
12648
Moving iMage Technologies
MITQ
$5.44M
| $17.4K | ﹤0.01% |
+33,657
| New | +$21.8K |
|
|
MAPS
12649
DELISTED
WM TECHNOLOGY INC A
MAPS
| $17.4K | ﹤0.01% |
26,418
-395,973
| -94% | -$291K |
|
12650
CALL
Dolphin Entertainment
DLPN
$14.8M
| $17.3K | ﹤0.01% |
11,800
-10,300
| -47% | -$16.5K |
|
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.