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 | |
|---|---|---|---|---|---|---|
11676
CALL
Fossil Group
FOSL
$311M
| $144K | ﹤0.01% |
33,300
-19,800
| -37% | -$79.9K |
|
11677
Valhi
VHI
$463M
| $143K | ﹤0.01% |
10,031
-8,443
| -46% | -$119K |
|
11678
CALL
LiveOne
LVO
$52M
| $143K | ﹤0.01% |
+28,100
| New | +$136K |
|
11679
CALL
Hain Celestial
HAIN
$52.3M
| $143K | ﹤0.01% |
204,500
-3,900
| -2% | -$3.62K |
|
11680
PUT
Kelly Services Class A
KELYA
$529M
| $142K | ﹤0.01% |
+16,100
| New | +$154K |
|
|
COYY
11681
GraniteShares YieldBOOST COIN ETF
COYY
$18.4M
| $142K | ﹤0.01% |
5,544
+2,185
| +65% | +$73K |
|
|
OTLY
11682
PUT
Oatly Group
OTLY
$418M
| $142K | ﹤0.01% |
14,000
-23,905
| -63% | -$265K |
|
11683
PUT
MiMedx Group
MDXG
$625M
| $142K | ﹤0.01% |
35,900
+12,000
| +50% | +$60.4K |
|
|
PTRN
11684
CALL
Pattern Group Inc
PTRN
$3.9B
| $142K | ﹤0.01% |
11,400
-4,000
| -26% | -$49.2K |
|
11685
Nuveen Massachusetts Quality Municipal Income Fund
NMT
$130M
| $142K | ﹤0.01% |
+11,507
| New | +$136K |
|
|
WRN
11686
Western Copper and Gold
WRN
$546M
| $142K | ﹤0.01% |
+55,969
| New | +$175K |
|
|
IONL
11687
CALL
GraniteShares 2x Long IONQ Daily ETF
IONL
$82.6M
| $141K | ﹤0.01% |
13,100
-7,500
| -36% | -$171K |
|
|
FOXX
11688
Foxx Development Holdings
FOXX
$18.2M
| $141K | ﹤0.01% |
+29,650
| New | +$133K |
|
11689
PUT
Humacyte
HUMA
$173M
| $141K | ﹤0.01% |
232,100
+98,200
| +73% | +$102K |
|
11690
LGL Group
LGL
$92.7M
| $141K | ﹤0.01% |
+20,257
| New | +$140K |
|
11691
CALL
Allot
ALLT
$393M
| $141K | ﹤0.01% |
21,100
+3,000
| +17% | +$26.4K |
|
|
CLLS
11692
Cellectis
CLLS
$296M
| $140K | ﹤0.01% |
44,315
-51,112
| -54% | -$196K |
|
|
BZAI
11693
Blaize Holdings
BZAI
$162M
| $140K | ﹤0.01% |
76,983
-433,888
| -85% | -$640K |
|
|
ZEPP
11694
PUT
Zepp Health
ZEPP
$75.2M
| $140K | ﹤0.01% |
11,700
-14,800
| -56% | -$303K |
|
11695
CALL
Nerdy
NRDY
$96M
| $139K | ﹤0.01% |
170,600
+23,500
| +16% | +$22.5K |
|
|
NSLR
11696
PUT
Neostellar Capital Corp
NSLR
$286M
| $139K | ﹤0.01% |
13,000
-2,300
| -15% | -$22K |
|
11697
PUT
Data I/O
DAIO
$31.4M
| $139K | ﹤0.01% |
+55,000
| New | +$160K |
|
11698
KraneShares Hang Seng TECH Index ETF
KTEC
$57.8M
| $139K | ﹤0.01% |
10,138
-21,734
| -68% | -$330K |
|
11699
PUT
Holley
HLLY
$376M
| $139K | ﹤0.01% |
+45,300
| New | +$172K |
|
|
PROF
11700
PUT
Profound Medical
PROF
$254M
| $139K | ﹤0.01% |
+21,400
| New | +$148K |
|
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.