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 | |
|---|---|---|---|---|---|---|
3051
CALL
Ingersoll Rand
IR
$32.3B
| $11.3M | ﹤0.01% |
141,400
+27,100
| +24% | +$2.39M |
|
3052
PUT
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
| $11.3M | ﹤0.01% |
+213,600
| New | +$11.7M |
|
3053
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.41B
| $11.3M | ﹤0.01% |
307,605
+226,644
| +280% | +$8.07M |
|
3054
Galicia Financial Group
GGAL
$6.97B
| $11.3M | ﹤0.01% |
+241,955
| New | +$11.8M |
|
|
JCAP
3055
Jefferson Capital
JCAP
$1.38B
| $11.3M | ﹤0.01% |
587,498
+328,171
| +127% | +$6.94M |
|
3056
CALL
Crocs
CROX
$6.32B
| $11.2M | ﹤0.01% |
135,300
-228,600
| -63% | -$19.6M |
|
3057
PUT
SharkNinja
SN
$26.1B
| $11.2M | ﹤0.01% |
106,000
+6,500
| +7% | +$761K |
|
3058
RBC Bearings
RBC
$17.7B
| $11.2M | ﹤0.01% |
+20,661
| New | +$11M |
|
3059
Bausch + Lomb
BLCO
$6.09B
| $11.2M | ﹤0.01% |
705,221
-206,108
| -23% | -$3.5M |
|
3060
PUT
Steel Dynamics
STLD
$36.7B
| $11.2M | ﹤0.01% |
62,200
-73,800
| -54% | -$13.4M |
|
|
OXLC
3061
Oxford Lane Capital
OXLC
$938M
| $11.2M | ﹤0.01% |
1,143,980
+958,148
| +516% | +$10.6M |
|
3062
PUT
Williams-Sonoma
WSM
$28.4B
| $11.2M | ﹤0.01% |
61,300
-36,700
| -37% | -$7.33M |
|
3063
Mobileye
MBLY
$7.58B
| $11.2M | ﹤0.01% |
1,626,831
+961,624
| +145% | +$8.71M |
|
3064
AppFolio
APPF
$7.23B
| $11.2M | ﹤0.01% |
70,779
-288,136
| -80% | -$54.6M |
|
3065
D-Wave Quantum Inc
QBTS
$7.88B
| $11.2M | ﹤0.01% |
774,073
+248,294
| +47% | +$5.25M |
|
3066
Ryanair
RYAAY
$30.5B
| $11.2M | ﹤0.01% |
193,058
+178,452
| +1,222% | +$11.8M |
|
3067
PUT
Freshpet
FRPT
$3.5B
| $11.2M | ﹤0.01% |
189,200
-46,000
| -20% | -$3.23M |
|
3068
First Commonwealth Financial
FCF
$2.18B
| $11.1M | ﹤0.01% |
634,208
+78,602
| +14% | +$1.38M |
|
3069
CALL
ACM Research
ACMR
$5.6B
| $11.1M | ﹤0.01% |
283,000
-16,800
| -6% | -$892K |
|
|
PR
3070
CALL
Permian Resources
PR
$18B
| $11.1M | ﹤0.01% |
522,100
+38,300
| +8% | +$661K |
|
3071
CALL
Madison Square Garden
MSGS
$9.8B
| $11.1M | ﹤0.01% |
34,600
+8,600
| +33% | +$2.56M |
|
3072
PUT
Navitas Semiconductor
NVTS
$3.77B
| $11.1M | ﹤0.01% |
1,264,900
-565,400
| -31% | -$5.21M |
|
3073
American Century Quality Diversified International ETF
QINT
$696M
| $11.1M | ﹤0.01% |
169,192
+50,218
| +42% | +$3.36M |
|
3074
BCE
BCE
$21.9B
| $11.1M | ﹤0.01% |
438,580
+154,763
| +55% | +$3.92M |
|
|
TTAN
3075
CALL
ServiceTitan Inc
TTAN
$8.62B
| $11.1M | ﹤0.01% |
174,200
-1,300
| -0.7% | -$100K |
|
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.