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 | |
|---|---|---|---|---|---|---|
6701
PUT
Brookfield Renewable
BEP
$10.3B
| $1.48M | ﹤0.01% |
45,200
-14,100
| -24% | -$425K |
|
6702
PUT
Globe Life
GL
$13.8B
| $1.48M | ﹤0.01% |
10,600
-8,100
| -43% | -$1.14M |
|
6703
BondBloxx Bloomberg Ten Year Target Duration US Treasury ETF
XTEN
$1.04B
| $1.48M | ﹤0.01% |
+32,167
| New | +$1.49M |
|
6704
PUT
iShares Russell 2000 Growth ETF
IWO
$15B
| $1.47M | ﹤0.01% |
4,700
-2,600
| -36% | -$865K |
|
6705
CALL
Idaho Strategic Resources
IDR
$549M
| $1.47M | ﹤0.01% |
45,900
-27,000
| -37% | -$1.05M |
|
6706
PUT
Aaon
AAON
$7.03B
| $1.47M | ﹤0.01% |
17,800
-12,500
| -41% | -$1.14M |
|
6707
PUT
PureCycle Technologies
PCT
$1.44B
| $1.47M | ﹤0.01% |
283,700
-795,200
| -74% | -$6.62M |
|
6708
PUT
Roundhill Generative AI & Technology ETF
CHAT
$1.94B
| $1.47M | ﹤0.01% |
23,800
+3,300
| +16% | +$207K |
|
6709
PUT
Ball Corp
BALL
$16.4B
| $1.47M | ﹤0.01% |
24,900
-102,600
| -80% | -$6.24M |
|
|
PENG
6710
CALL
Penguin Solutions Inc
PENG
$3.01B
| $1.47M | ﹤0.01% |
83,600
-176,000
| -68% | -$3.35M |
|
6711
PUT
PACS Group
PACS
$7.2B
| $1.47M | ﹤0.01% |
45,800
-56,800
| -55% | -$2.09M |
|
6712
PUT
Vornado Realty Trust
VNO
$7.33B
| $1.47M | ﹤0.01% |
56,600
+10,800
| +24% | +$320K |
|
6713
PUT
Morningstar
MORN
$7.41B
| $1.47M | ﹤0.01% |
8,700
+5,100
| +142% | +$947K |
|
6714
PUT
Denison Mines
DNN
$2.98B
| $1.47M | ﹤0.01% |
416,400
-551,500
| -57% | -$2.07M |
|
|
RNA
6715
Atrium Therapeutics
RNA
$208M
| $1.47M | ﹤0.01% |
+109,936
| New | +$1.54M |
|
6716
PUT
iShares 1-3 Year Treasury Bond ETF
SHY
$25.5B
| $1.47M | ﹤0.01% |
17,800
+9,900
| +125% | +$820K |
|
6717
Alta Equipment Group
ALTG
$254M
| $1.47M | ﹤0.01% |
273,675
+146,330
| +115% | +$929K |
|
6718
National Presto Industries
NPK
$998M
| $1.47M | ﹤0.01% |
10,714
-16,311
| -60% | -$2.09M |
|
|
SKYA
6719
SkyAI Inc
SKYA
$48.1M
| $1.47M | ﹤0.01% |
+873,957
| New | +$1.68M |
|
6720
Matthews Emerging Markets Sustainable Future Active ETF
EMSF
$47.5M
| $1.47M | ﹤0.01% |
47,256
+32,648
| +223% | +$1.04M |
|
6721
CALL
MYR Group
MYRG
$5.18B
| $1.47M | ﹤0.01% |
5,200
-3,400
| -40% | -$884K |
|
|
6722
PUT
MYR Group
MYRG
$5.18B
| $1.47M | ﹤0.01% |
5,200
+3,400
| +189% | +$884K |
|
6723
CALL
SS&C Technologies
SSNC
$18.8B
| $1.47M | ﹤0.01% |
21,700
+18,100
| +503% | +$1.39M |
|
6724
CALL
Gates Industrial Corporation Ltd.
GTES
$7.05B
| $1.47M | ﹤0.01% |
64,800
+26,300
| +68% | +$640K |
|
6725
CALL
iShares S&P 100 ETF
OEF
$20.4B
| $1.46M | ﹤0.01% |
4,600
+2,000
| +77% | +$670K |
|
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.