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 | |
|---|---|---|---|---|---|---|
|
COIA
12126
ProShares Ultra COIN
COIA
$1.3M
| $80.3K | ﹤0.01% |
+7,398
| New | +$121K |
|
|
ODYS
12127
Odysight.ai Inc
ODYS
$68.3M
| $80.1K | ﹤0.01% |
+11,524
| New | +$62.3K |
|
|
YRD
12128
CALL
Yiren Digital
YRD
$105M
| $80K | ﹤0.01% |
+46,500
| New | +$165K |
|
|
XNET
12129
CALL
Xunlei
XNET
$328M
| $79.5K | ﹤0.01% |
14,300
-83,700
| -85% | -$532K |
|
12130
Talphera
TLPH
$62.8M
| $79.3K | ﹤0.01% |
106,151
+29,706
| +39% | +$26.9K |
|
12131
Reading International Class A
RDI
$33.2M
| $79.1K | ﹤0.01% |
69,966
-62,938
| -47% | -$68.5K |
|
12132
MMTec
MTC
$299M
| $79K | ﹤0.01% |
+16,739
| New | +$70.5K |
|
12133
PUT
Verastem
VSTM
$604M
| $79K | ﹤0.01% |
14,900
-18,900
| -56% | -$117K |
|
|
LAWR
12134
Robot Consulting Co
LAWR
| $78.8K | ﹤0.01% |
28,027
| – | – |
|
12135
CALL
NeuroOne Medical Technologies
NMTC
$15.9M
| $78.8K | ﹤0.01% |
16,917
-416
| -2% | -$2K |
|
|
SFIX
12136
Stitch Fix
SFIX
$487M
| $78.8K | ﹤0.01% |
23,809
+830
| +4% | +$3.39K |
|
|
BZAI
12137
PUT
Blaize Holdings
BZAI
$166M
| $78.8K | ﹤0.01% |
43,300
-26,900
| -38% | -$39.7K |
|
|
AERT
12138
Aeries Technology
AERT
$39.7M
| $78.8K | ﹤0.01% |
31,472
+21,589
| +218% | +$74.6K |
|
|
NEUP
12139
Neuphoria Therapeutics
NEUP
$20.7M
| $78.7K | ﹤0.01% |
+19,331
| New | +$81.7K |
|
|
XCH
12140
XCHG Ltd
XCH
$23.6M
| $78.7K | ﹤0.01% |
67,237
+25,602
| +61% | +$29.4K |
|
12141
Quetta Acquisition Corp Right
QETAR
| $78.4K | ﹤0.01% |
52,994
-2,439
| -4% | -$3.18K |
|
|
WAVE
12142
Eco Wave Power Global
WAVE
$44.2M
| $78.3K | ﹤0.01% |
+12,596
| New | +$69.5K |
|
12143
TriSalus Life Sciences Warrant
TLSIW
$32.6M
| $78.2K | ﹤0.01% |
65,190
-13,093
| -17% | -$17.6K |
|
|
THM
12144
International Tower Hill Mines
THM
$696M
| $78.2K | ﹤0.01% |
+33,991
| New | +$86.6K |
|
12145
PUT
Allogene Therapeutics
ALLO
$683M
| $78.1K | ﹤0.01% |
32,000
+13,200
| +70% | +$26.5K |
|
12146
CALL
Dynagas LNG Partners
DLNG
$138M
| $77.9K | ﹤0.01% |
18,200
-8,700
| -32% | -$34.4K |
|
12147
CALL
Savara
SVRA
$1.08B
| $77.5K | ﹤0.01% |
14,200
-15,300
| -52% | -$85.2K |
|
|
MARO
12148
PUT
YieldMax MARA Option Income Strategy ETF
MARO
$41.8M
| $77.4K | ﹤0.01% |
+14,500
| New | +$95.4K |
|
|
MCW
12149
PUT
DELISTED
Mister Car Wash
MCW
| $77.4K | ﹤0.01% |
11,100
-84,200
| -88% | -$541K |
|
12150
Invesco Municipal Income Opportunities Trust
OIA
$292M
| $77.2K | ﹤0.01% |
+12,581
| New | +$77.8K |
|
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.