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 | |
|---|---|---|---|---|---|---|
2776
CALL
Procure Space ETF
UFO
$634M
| $16.8M | ﹤0.01% |
331,100
+193,400
| +140% | +$10.4M |
|
2777
PUT
Calumet Specialty Products
CLMT
$4.19B
| $16.8M | ﹤0.01% |
465,600
+201,500
| +76% | +$6.77M |
|
2778
Caesars Entertainment
CZR
$6.06B
| $16.8M | ﹤0.01% |
555,423
-2,094,211
| -79% | -$59M |
|
2779
CALL
Murphy USA
MUSA
$10.5B
| $16.8M | ﹤0.01% |
31,100
+2,500
| +9% | +$1.36M |
|
2780
Graphic Packaging
GPK
$3.38B
| $16.7M | ﹤0.01% |
1,583,537
-3,887,600
| -71% | -$39.7M |
|
2781
CALL
Conagra Brands
CAG
$7.5B
| $16.7M | ﹤0.01% |
1,243,400
+384,000
| +45% | +$5.36M |
|
2782
Wolverine World Wide
WWW
$1.73B
| $16.7M | ﹤0.01% |
1,012,410
-84,102
| -8% | -$1.42M |
|
2783
Mid-America Apartment Communities
MAA
$15.5B
| $16.7M | ﹤0.01% |
120,218
-189,437
| -61% | -$24.7M |
|
2784
CALL
Antero Resources
AR
$11.5B
| $16.7M | ﹤0.01% |
474,900
-256,900
| -35% | -$9.46M |
|
2785
UBS Group
UBS
$176B
| $16.7M | ﹤0.01% |
336,523
-340,539
| -50% | -$15.5M |
|
2786
CALL
YPF Sociedad Anonima ADS
YPF
$19.6B
| $16.7M | ﹤0.01% |
366,700
-254,700
| -41% | -$11.9M |
|
2787
Pembina Pipeline
PBA
$28.7B
| $16.7M | ﹤0.01% |
360,062
-143,300
| -28% | -$6.63M |
|
2788
PUT
Archer Daniels Midland
ADM
$38.8B
| $16.6M | ﹤0.01% |
217,800
+33,700
| +18% | +$2.57M |
|
2789
Brookdale Senior Living
BKD
$3.02B
| $16.6M | ﹤0.01% |
1,034,020
-1,990,584
| -66% | -$27.1M |
|
2790
CALL
Harrow
HROW
$1.5B
| $16.6M | ﹤0.01% |
391,400
+211,400
| +117% | +$7.86M |
|
2791
PUT
Direxion Daily S&P 500 Bear 3x ETF
SPXS
$329M
| $16.6M | ﹤0.01% |
627,500
+423,800
| +208% | +$12.5M |
|
2792
MACOM Technology Solutions
MTSI
$24.2B
| $16.6M | ﹤0.01% |
43,699
-546,871
| -93% | -$181M |
|
2793
CALL
Martin Marietta Materials
MLM
$32.9B
| $16.6M | ﹤0.01% |
28,800
+500
| +2% | +$297K |
|
2794
Alliant Energy
LNT
$18.3B
| $16.6M | ﹤0.01% |
217,500
-72,446
| -25% | -$5.28M |
|
|
EA
2795
PUT
DELISTED
Electronic Arts
EA
| $16.6M | ﹤0.01% |
80,900
+47,100
| +139% | +$9.54M |
|
2796
CALL
Guidewire Software
GWRE
$14.6B
| $16.6M | ﹤0.01% |
134,800
+53,000
| +65% | +$7.07M |
|
2797
CALL
Axcelis
ACLS
$4.33B
| $16.6M | ﹤0.01% |
87,500
+43,700
| +100% | +$6.48M |
|
2798
CALL
Aon
AON
$75.5B
| $16.5M | ﹤0.01% |
49,800
+5,600
| +13% | +$1.81M |
|
2799
PUT
HF Sinclair
DINO
$16.7B
| $16.5M | ﹤0.01% |
237,100
+6,600
| +3% | +$439K |
|
2800
CALL
Roper Technologies
ROP
$39.5B
| $16.5M | ﹤0.01% |
48,800
-16,800
| -26% | -$5.73M |
|
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.