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
|
+$9.91B |
| 2 |
SPCX
SpaceX
SPCX
|
+$871M |
| 3 |
Eli Lilly
LLY
|
+$719M |
| 4 |
Amazon
AMZN
|
+$698M |
| 5 |
Netflix
NFLX
|
+$627M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$3B |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.54B |
| 3 |
TSMC
TSM
|
+$1.42B |
| 4 |
NVIDIA
NVDA
|
+$1.41B |
| 5 |
SNDK
Sandisk
SNDK
|
+$771M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.92% |
| 2 | Healthcare | 2.55% |
| 3 | Industrials | 2.24% |
| 4 | Financials | 2.13% |
| 5 | Consumer Discretionary | 1.76% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2676
PUT
Sunrun
RUN
$2.45B
| $18.2M | ﹤0.01% |
1,356,600
+356,200
| +36% | +$4.81M |
|
2677
Cohu
COHU
$2.81B
| $18.1M | ﹤0.01% |
245,544
+37,992
| +18% | +$1.9M |
|
2678
Lexeo Therapeutics
LXEO
$397M
| $18.1M | ﹤0.01% |
3,898,570
+63,571
| +2% | +$344K |
|
2679
Cipher Digital
CIFR
$7.41B
| $18.1M | ﹤0.01% |
740,224
+82,052
| +12% | +$1.73M |
|
2680
CALL
Bilibili
BILI
$7.3B
| $18.1M | ﹤0.01% |
1,063,900
+265,300
| +33% | +$5.37M |
|
2681
Vipshop
VIPS
$6.81B
| $18.1M | ﹤0.01% |
1,366,112
+1,074,696
| +369% | +$15.4M |
|
2682
PUT
Core & Main
CNM
$8.61B
| $18.1M | ﹤0.01% |
375,400
+349,000
| +1,322% | +$17.2M |
|
2683
CALL
Innodata
INOD
$2.09B
| $18.1M | ﹤0.01% |
239,300
+88,400
| +59% | +$6.49M |
|
2684
Boot Barn
BOOT
$4.95B
| $18.1M | ﹤0.01% |
110,009
-497,942
| -82% | -$80.8M |
|
2685
Carlisle Companies
CSL
$14.7B
| $18M | ﹤0.01% |
49,659
+9,173
| +23% | +$3.21M |
|
2686
CALL
Matador Resources
MTDR
$6.64B
| $18M | ﹤0.01% |
361,800
-50,500
| -12% | -$2.87M |
|
2687
Diamondback Energy
FANG
$56.7B
| $18M | ﹤0.01% |
102,425
-71,668
| -41% | -$13.9M |
|
2688
Construction Partners
ROAD
$6.9B
| $18M | ﹤0.01% |
151,556
+27,085
| +22% | +$3.21M |
|
2689
Immunocore
IMCR
$1.74B
| $18M | ﹤0.01% |
566,761
+336,362
| +146% | +$9.95M |
|
2690
Becton Dickinson
BDX
$50B
| $18M | ﹤0.01% |
118,843
-710,658
| -86% | -$106M |
|
2691
RLJ Lodging Trust
RLJ
$1.67B
| $18M | ﹤0.01% |
1,515,542
+484,713
| +47% | +$4.53M |
|
2692
PJT Partners
PJT
$4.46B
| $18M | ﹤0.01% |
118,935
-11,567
| -9% | -$1.78M |
|
2693
CALL
Sanmina
SANM
$11.3B
| $17.9M | ﹤0.01% |
70,800
-1,700
| -2% | -$373K |
|
2694
Patterson-UTI
PTEN
$4.34B
| $17.9M | ﹤0.01% |
1,949,857
+1,317,927
| +209% | +$14.7M |
|
2695
CALL
NetEase
NTES
$80.1B
| $17.9M | ﹤0.01% |
139,500
+83,800
| +150% | +$9.89M |
|
2696
Arcosa
ACA
$7.14B
| $17.9M | ﹤0.01% |
123,033
+81,742
| +198% | +$10.2M |
|
2697
CALL
GitLab
GTLB
$7.2B
| $17.9M | ﹤0.01% |
585,400
+102,200
| +21% | +$2.59M |
|
2698
Bio-Rad Laboratories Class A
BIO
$9.53B
| $17.9M | ﹤0.01% |
60,819
-87,850
| -59% | -$24.9M |
|
|
2699
PUT
Becton Dickinson
BDX
$50B
| $17.8M | ﹤0.01% |
117,900
+54,800
| +87% | +$8.2M |
|
2700
PUT
Xcel Energy
XEL
$49.5B
| $17.8M | ﹤0.01% |
222,000
+200,000
| +909% | +$16M |
|
Similar funds
Ken Griffin's Q2 2026 Portfolio in Review
As of Q2 2026, Ken Griffin held 15,447 positions worth $875B, up 41% from $618B the previous quarter. Its ten largest holdings account for 23% of the portfolio.
Ken Griffin deployed $103B of net new capital in Q2 2026, opening 2,575 new positions and adding to 6,089 existing holdings. Its largest new stake was SpaceX: 5,129,884 shares worth $876M.
By sector, the portfolio is most concentrated in Technology at 3.9% of assets, down from 4.5% a quarter earlier, followed by Healthcare and Industrials.
On the sell side, the largest reduction was Micron Technology, an estimated $3B trimmed.
- Ken Griffin's largest Q2 2026 buy was SpaceX: 5,129,884 shares worth $876M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q2 2026, an estimated $9.91B increase.
- Ken Griffin's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $3B.
- Ken Griffin fully exited iShares 7-10 Year Treasury Bond ETF in Q2 2026, selling an estimated $325M.
- Ken Griffin's ten largest holdings make up 23% of its $875B portfolio in Q2 2026.
- Ken Griffin opened 2,575 new positions and closed 1,872 in Q2 2026.
- Ken Griffin's portfolio value rose 41% quarter-over-quarter to $875B.
Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.