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 | |
|---|---|---|---|---|---|---|
11801
Invesco Mortgage Capital
IVR
$802M
| $123K | ﹤0.01% |
15,250
-115,854
| -88% | -$989K |
|
|
SVAQU
11802
Silicon Valley Acquisition Corp Units
SVAQU
| $123K | ﹤0.01% |
12,293
-8,848
| -42% | -$88.5K |
|
11803
CALL
Geron
GERN
$1.05B
| $122K | ﹤0.01% |
82,200
-222,200
| -73% | -$338K |
|
11804
CALL
Xponential Fitness
XPOF
$204M
| $122K | ﹤0.01% |
20,300
-55,700
| -73% | -$403K |
|
|
LAND
11805
Gladstone Land Corp
LAND
$354M
| $122K | ﹤0.01% |
+11,972
| New | +$129K |
|
11806
CALL
Tenaya Therapeutics
TNYA
$168M
| $122K | ﹤0.01% |
176,000
+82,500
| +88% | +$60.9K |
|
11807
CALL
eGain
EGAN
$203M
| $122K | ﹤0.01% |
15,400
-25,100
| -62% | -$242K |
|
11808
CALL
Vestis
VSTS
$1.83B
| $121K | ﹤0.01% |
15,400
-75,900
| -83% | -$554K |
|
11809
PUT
IHS Holding
IHS
$2.81B
| $121K | ﹤0.01% |
14,700
-13,600
| -48% | -$109K |
|
11810
PUT
Abeona Therapeutics
ABEO
$422M
| $121K | ﹤0.01% |
27,000
-57,000
| -68% | -$285K |
|
11811
PUT
Arvinas
ARVN
$588M
| $121K | ﹤0.01% |
11,400
-21,600
| -65% | -$268K |
|
|
NXDR
11812
PUT
Nextdoor Holdings
NXDR
$1.03B
| $121K | ﹤0.01% |
86,300
-40,800
| -32% | -$70.9K |
|
11813
CALL
Solana Company
HSDT
$102M
| $121K | ﹤0.01% |
69,800
-16,600
| -19% | -$40.3K |
|
11814
SCYNEXIS
SCYX
$48.1M
| $120K | ﹤0.01% |
16,354
+3,362
| +26% | +$20.8K |
|
|
FWDI
11815
PUT
Forward Industries Inc
FWDI
$316M
| $120K | ﹤0.01% |
27,000
-6,000
| -18% | -$34.3K |
|
11816
CALL
RF Industries
RFIL
$139M
| $120K | ﹤0.01% |
11,600
-12,400
| -52% | -$126K |
|
11817
CALL
FreightCar America
RAIL
$252M
| $120K | ﹤0.01% |
+15,000
| New | +$170K |
|
|
NVX
11818
CALL
NOVONIX
NVX
$112M
| $119K | ﹤0.01% |
173,000
-32,000
| -16% | -$31.1K |
|
11819
CALL
GrafTech
EAF
$206M
| $119K | ﹤0.01% |
17,510
-22,760
| -57% | -$241K |
|
11820
PUT
ARS Pharmaceuticals
SPRY
$591M
| $118K | ﹤0.01% |
14,700
-54,900
| -79% | -$526K |
|
11821
SoundThinking
SSTI
$105M
| $118K | ﹤0.01% |
17,827
-60,886
| -77% | -$445K |
|
11822
Kaixin Holdings
KXIN
$8.43M
| $118K | ﹤0.01% |
+21,689
| New | +$1.13M |
|
11823
PUT
EverCommerce
EVCM
$1.75B
| $118K | ﹤0.01% |
+10,300
| New | +$117K |
|
11824
Elutia
ELUT
$35.4M
| $118K | ﹤0.01% |
112,105
-41,948
| -27% | -$41.9K |
|
|
REE
11825
DELISTED
REE Automotive
REE
| $118K | ﹤0.01% |
196,297
+12,031
| +7% | +$7.58K |
|
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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.