IMC Chicago Portfolio holdings
IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$568M |
| 2 |
Amazon
AMZN
|
+$341M |
| 3 |
iShares MSCI South Korea ETF
EWY
|
+$278M |
| 4 |
Apple
AAPL
|
+$239M |
| 5 |
TSMC
TSM
|
+$215M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$316M |
| 2 |
Tesla
TSLA
|
+$253M |
| 3 |
Micron Technology
MU
|
+$178M |
| 4 |
iShares Bitcoin Trust
IBIT
|
+$176M |
| 5 |
SNDK
Sandisk
SNDK
|
+$159M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.94% |
| 2 | Technology | 0.92% |
| 3 | Consumer Discretionary | 0.31% |
| 4 | Financials | 0.17% |
| 5 | Communication Services | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
CALL
Boeing
BA
$167B
| $640M | 0.15% |
2,958,200
-386,800
| -12% | -$86.1M |
|
102
PUT
Qualcomm
QCOM
$180B
| $632M | 0.15% |
3,421,800
+2,382,900
| +229% | +$446M |
|
|
SPCX
103
PUT
SpaceX
SPCX
$1.97T
| $629M | 0.15% |
+3,682,300
| New | +$626M |
|
104
PUT
Corning
GLW
$132B
| $629M | 0.15% |
2,462,200
+1,345,100
| +120% | +$245M |
|
|
105
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45.8B
| $628M | 0.15% |
1,202,720
+1,137,901
| +1,756% | +$568M |
|
|
106
CALL
Corning
GLW
$132B
| $603M | 0.14% |
2,361,200
+1,003,000
| +74% | +$182M |
|
107
CALL
Lumentum
LITE
$78.1B
| $600M | 0.14% |
699,600
-57,900
| -8% | -$51.6M |
|
|
108
Micron Technology
MU
$1.13T
| $570M | 0.14% |
493,782
-237,436
| -32% | -$178M |
|
109
CALL
Astera Labs
ALAB
$55.2B
| $568M | 0.14% |
1,175,900
+549,000
| +88% | +$146M |
|
|
UWC
110
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $559M | 0.13% |
6,704,600
-579,700
| -8% | -$48.3M |
|
|
111
CALL
iShares Bitcoin Trust
IBIT
$61.5B
| $555M | 0.13% |
16,671,100
+2,175,200
| +15% | +$88.5M |
|
112
CALL
Booking.com
BKNG
$146B
| $551M | 0.13% |
3,093,400
-804,100
| -21% | -$137M |
|
|
113
TSMC
TSM
$2.21T
| $549M | 0.13% |
1,149,192
+528,748
| +85% | +$215M |
|
114
CALL
Coinbase
COIN
$49.2B
| $549M | 0.13% |
3,753,500
-750,100
| -17% | -$135M |
|
115
CALL
IBM
IBM
$221B
| $538M | 0.13% |
1,914,200
+1,140,900
| +148% | +$287M |
|
116
CALL
iShares MSCI Australia ETF
EWA
$1.35B
| $537M | 0.13% |
6,844,100
+1,774,900
| +35% | +$51.5M |
|
117
PUT
Coherent
COHR
$55.3B
| $532M | 0.13% |
1,348,400
+740,600
| +122% | +$262M |
|
118
PUT
Robinhood
HOOD
$111B
| $529M | 0.13% |
5,271,800
+1,370,600
| +35% | +$115M |
|
119
PUT
United States Oil Fund
USO
$1.94B
| $515M | 0.12% |
4,842,500
+1,313,200
| +37% | +$172M |
|
120
PUT
Applovin
APP
$106B
| $512M | 0.12% |
993,000
-92,100
| -8% | -$44.4M |
|
121
CALL
KLA
KLAC
$243B
| $508M | 0.12% |
1,684,500
+580,500
| +53% | +$115M |
|
122
CALL
ServiceNow
NOW
$146B
| $502M | 0.12% |
5,060,000
+2,029,500
| +67% | +$201M |
|
123
CALL
Home Depot
HD
$319B
| $502M | 0.12% |
1,422,800
+673,400
| +90% | +$219M |
|
124
CALL
Salesforce
CRM
$214B
| $499M | 0.12% |
3,183,000
+445,600
| +16% | +$78.4M |
|
125
CALL
First Solar
FSLR
$22B
| $496M | 0.12% |
2,102,500
+232,700
| +12% | +$54.6M |
|
Similar funds
IMC Chicago's Q2 2026 Portfolio in Review
As of Q2 2026, IMC Chicago held 6,955 positions worth $419B, up 50% from $278B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
IMC Chicago's Q2 2026 filing shows 1,282 new, 3,251 increased, 1,751 reduced and 653 closed positions. Its largest new stake was Microsoft: 303,034 shares worth $113M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $316M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- IMC Chicago's largest Q2 2026 buy was Microsoft: 303,034 shares worth $113M.
- IMC Chicago added most to State Street SPDR Dow Jones Industrial Average ETF Trust in Q2 2026, an estimated $568M increase.
- IMC Chicago's biggest Q2 2026 reduction was Tesla, cutting an estimated $253M.
- IMC Chicago fully exited State Street SPDR S&P 500 ETF Trust in Q2 2026, selling an estimated $316M.
- IMC Chicago's ten largest holdings make up 34% of its $419B portfolio in Q2 2026.
- IMC Chicago opened 1,282 new positions and closed 653 in Q2 2026.
- IMC Chicago's portfolio value rose 50% quarter-over-quarter to $419B.
Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.