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 | |
|---|---|---|---|---|---|---|
3501
CALL
Huntington Ingalls Industries
HII
$12.9B
| $10.2M | ﹤0.01% |
36,400
-203,000
| -85% | -$67.8M |
|
3502
PUT
BorgWarner
BWA
$14B
| $10.2M | ﹤0.01% |
153,000
+70,500
| +85% | +$4.47M |
|
3503
CALL
-1x Short VIX Futures ETF
SVIX
$173M
| $10.1M | ﹤0.01% |
426,700
+172,800
| +68% | +$3.49M |
|
|
PBOG
3504
Portfolio Building Block Integrated Oil and Gas and Exploration and Production Index ETF
PBOG
$456M
| $10.1M | ﹤0.01% |
345,081
+130,012
| +60% | +$4.24M |
|
3505
Warby Parker
WRBY
$3.2B
| $10.1M | ﹤0.01% |
334,234
-229,213
| -41% | -$5.67M |
|
3506
PUT
Rexford Industrial Realty
REXR
$8.08B
| $10.1M | ﹤0.01% |
302,700
+274,900
| +989% | +$9.61M |
|
3507
Intuitive Machines
LUNR
$3.05B
| $10.1M | ﹤0.01% |
473,836
-3,172,303
| -87% | -$89.1M |
|
3508
PUT
Alamos Gold
AGI
$14B
| $10.1M | ﹤0.01% |
334,000
+99,200
| +42% | +$4.02M |
|
3509
CALL
BILL Holdings
BILL
$4.96B
| $10.1M | ﹤0.01% |
280,100
+47,900
| +21% | +$1.76M |
|
3510
Ares Management
ARES
$32.5B
| $10.1M | ﹤0.01% |
90,970
-1,989,437
| -96% | -$239M |
|
|
UCTT
3511
PUT
Ultra Clean Holdings
UCTT
$3.85B
| $10.1M | ﹤0.01% |
71,000
+49,900
| +236% | +$4.39M |
|
3512
PUT
The GEO Group
GEO
$4.11B
| $10.1M | ﹤0.01% |
342,000
+116,200
| +51% | +$2.63M |
|
3513
CALL
State Street SPDR Portfolio S&P 500 Growth ETF
SPYG
$55.3B
| $10.1M | ﹤0.01% |
84,900
-20,800
| -20% | -$2.38M |
|
3514
Vir Biotechnology
VIR
$1.56B
| $10.1M | ﹤0.01% |
991,337
-1,107,139
| -53% | -$10.5M |
|
3515
Atour Lifestyle Holdings
ATAT
$4.65B
| $10.1M | ﹤0.01% |
317,663
+116,749
| +58% | +$4.18M |
|
3516
PUT
Icon
ICLR
$12.6B
| $10.1M | ﹤0.01% |
58,100
+46,000
| +380% | +$5.86M |
|
3517
PUT
Martin Marietta Materials
MLM
$32.9B
| $10.1M | ﹤0.01% |
17,500
+9,700
| +124% | +$5.75M |
|
3518
CALL
First Trust NASDAQ Cybersecurity ETF
CIBR
$15.6B
| $10.1M | ﹤0.01% |
112,100
+27,700
| +33% | +$2.13M |
|
3519
Golar LNG
GLNG
$5.36B
| $10.1M | ﹤0.01% |
201,866
-724,608
| -78% | -$38.3M |
|
3520
CALL
Xometry
XMTR
$5.52B
| $10.1M | ﹤0.01% |
104,200
+76,700
| +279% | +$5.48M |
|
3521
CALL
Boyd Gaming
BYD
$6.11B
| $10.1M | ﹤0.01% |
113,800
+24,900
| +28% | +$2.12M |
|
3522
PUT
Roper Technologies
ROP
$39.5B
| $10.1M | ﹤0.01% |
29,700
-12,900
| -30% | -$4.4M |
|
3523
CALL
AmpliTech
AMPG
$120M
| $10M | ﹤0.01% |
1,443,100
+1,224,200
| +559% | +$5.12M |
|
3524
ProShares UltraPro Dow 30
UDOW
$924M
| $10M | ﹤0.01% |
143,065
+49,602
| +53% | +$3.07M |
|
3525
CALL
KeyCorp
KEY
$25B
| $10M | ﹤0.01% |
434,600
-4,900
| -1% | -$107K |
|
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.