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 | |
|---|---|---|---|---|---|---|
|
DFTX
2026
Definium Therapeutics
DFTX
$5.67B
| $25.2M | ﹤0.01% |
1,333,442
+1,123,498
| +535% | +$19.1M |
|
2027
CALL
US Global Jets ETF
JETS
$823M
| $25.2M | ﹤0.01% |
1,022,800
+828,000
| +425% | +$22.9M |
|
|
USAR
2028
PUT
USA Rare Earth Inc
USAR
$4.82B
| $25.1M | ﹤0.01% |
1,661,200
+480,900
| +41% | +$9.33M |
|
2029
PUT
Vanguard FTSE Emerging Markets ETF
VWO
$125B
| $25.1M | ﹤0.01% |
465,100
+438,300
| +1,635% | +$24.6M |
|
2030
PUT
Direxion Daily GOOGL Bull 2X ETF
GGLL
$951M
| $25.1M | ﹤0.01% |
321,500
+177,500
| +123% | +$17.1M |
|
2031
PUT
Fabrinet
FN
$20.4B
| $25M | ﹤0.01% |
48,000
+22,300
| +87% | +$11.3M |
|
2032
First Trust Core Investment Grade ETF
FTCB
$2.58B
| $25M | ﹤0.01% |
1,192,163
+1,088,702
| +1,052% | +$23.1M |
|
2033
CALL
Rubrik
RBRK
$21.3B
| $25M | ﹤0.01% |
510,100
-1,406,100
| -73% | -$80.7M |
|
2034
CALL
Warrior Met Coal
HCC
$5.18B
| $24.9M | ﹤0.01% |
267,800
+98,100
| +58% | +$8.83M |
|
2035
Jones Lang LaSalle
JLL
$17B
| $24.9M | ﹤0.01% |
81,878
-147,922
| -64% | -$47.8M |
|
2036
PUT
Oscar Health
OSCR
$10.1B
| $24.9M | ﹤0.01% |
2,171,800
-645,700
| -23% | -$9.1M |
|
2037
PUT
Autodesk
ADSK
$53.4B
| $24.9M | ﹤0.01% |
104,000
-48,400
| -32% | -$12.2M |
|
2038
Moderna
MRNA
$25.3B
| $24.9M | ﹤0.01% |
489,770
-89,360
| -15% | -$4.17M |
|
2039
Alkami Technology
ALKT
$2.18B
| $24.9M | ﹤0.01% |
1,586,080
+1,398,732
| +747% | +$25.8M |
|
2040
PUT
AstraZeneca
AZN
$242B
| $24.8M | ﹤0.01% |
125,950
+16,050
| +15% | +$3.09M |
|
2041
PUT
TKO Group
TKO
$14.7B
| $24.8M | ﹤0.01% |
123,100
+14,600
| +13% | +$2.99M |
|
2042
ZIM Integrated Shipping Services
ZIM
$3.39B
| $24.8M | ﹤0.01% |
941,298
+135,876
| +17% | +$3.38M |
|
2043
PUT
Crocs
CROX
$6.3B
| $24.8M | ﹤0.01% |
298,700
-137,500
| -32% | -$11.8M |
|
2044
PUT
Celsius Holdings
CELH
$7.2B
| $24.7M | ﹤0.01% |
697,200
-1,131,300
| -62% | -$53.6M |
|
2045
ARK Innovation ETF
ARKK
$6.42B
| $24.7M | ﹤0.01% |
365,915
-225,010
| -38% | -$16.7M |
|
2046
CALL
Trane Technologies
TT
$106B
| $24.7M | ﹤0.01% |
59,300
+13,800
| +30% | +$5.86M |
|
|
2047
CALL
Oscar Health
OSCR
$10.1B
| $24.7M | ﹤0.01% |
2,154,200
-292,400
| -12% | -$4.12M |
|
2048
CALL
Illinois Tool Works
ITW
$82.7B
| $24.7M | ﹤0.01% |
94,900
+72,600
| +326% | +$19.8M |
|
2049
CALL
Fastly Inc
FSLY
$4.81B
| $24.7M | ﹤0.01% |
849,300
+650,300
| +327% | +$10.7M |
|
2050
CALL
Sterling Infrastructure
STRL
$17.5B
| $24.7M | ﹤0.01% |
60,600
-3,000
| -5% | -$1.17M |
|
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.