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 | |
|---|---|---|---|---|---|---|
|
QXO
1151
PUT
QXO Inc
QXO
$13.9B
| $17.5M | ﹤0.01% |
1,011,000
+600,100
| +146% | +$11.2M |
|
1152
CALL
Darling Ingredients
DAR
$10.3B
| $17.4M | ﹤0.01% |
319,300
+10,000
| +3% | +$597K |
|
1153
Advance Auto Parts
AAP
$2.67B
| $17.4M | ﹤0.01% |
279,990
+158,397
| +130% | +$8.99M |
|
1154
PUT
Shake Shack
SHAK
$2.8B
| $17.4M | ﹤0.01% |
310,600
+232,900
| +300% | +$17.5M |
|
1155
ProShares UltraPro Short QQQ
SQQQ
$1.92B
| $17.4M | ﹤0.01% |
478,711
-330,383
| -41% | -$15.9M |
|
1156
CALL
Globalstar
GSAT
$10.7B
| $17.4M | ﹤0.01% |
213,700
+43,200
| +25% | +$3.48M |
|
1157
CALL
Southern Copper
SCCO
$168B
| $17.3M | ﹤0.01% |
100,694
+1,446
| +1% | +$260K |
|
1158
PUT
Antero Resources
AR
$12.1B
| $17.2M | ﹤0.01% |
490,400
+130,300
| +36% | +$4.8M |
|
1159
PUT
ClearShares Piton Intermediate Fixed Income ETF
PIFI
$97.5M
| $17.2M | ﹤0.01% |
466,000
+161,400
| +53% | +$15.2M |
|
1160
CALL
Edwards Lifesciences
EW
$51.8B
| $17.2M | ﹤0.01% |
190,300
+102,100
| +116% | +$8.55M |
|
1161
PUT
ACM Research
ACMR
$5.18B
| $17.2M | ﹤0.01% |
135,500
+46,300
| +52% | +$3.27M |
|
1162
PUT
Ecolab
ECL
$78.3B
| $17.2M | ﹤0.01% |
61,700
+45,200
| +274% | +$11.9M |
|
1163
CALL
Alamos Gold
AGI
$15.5B
| $17.2M | ﹤0.01% |
565,700
+154,800
| +38% | +$6.27M |
|
1164
CALL
NIO
NIO
$9.52B
| $17.2M | ﹤0.01% |
3,391,200
-1,049,800
| -24% | -$6.12M |
|
1165
CALL
Elastic
ESTC
$9.64B
| $17.2M | ﹤0.01% |
300,800
+13,700
| +5% | +$735K |
|
1166
PUT
Elbit Systems
ESLT
$33B
| $17.1M | ﹤0.01% |
22,500
-1,500
| -6% | -$1.25M |
|
1167
CALL
Madrigal Pharmaceuticals
MDGL
$12.5B
| $17M | ﹤0.01% |
31,700
+14,500
| +84% | +$7.43M |
|
1168
Dell
DELL
$339B
| $17M | ﹤0.01% |
39,390
-12,792
| -25% | -$3.7M |
|
1169
CALL
AerCap
AER
$22.9B
| $17M | ﹤0.01% |
116,500
+6,300
| +6% | +$895K |
|
1170
CALL
ATI
ATI
$28.7B
| $17M | ﹤0.01% |
86,100
+20,500
| +31% | +$3.48M |
|
1171
PUT
Vulcan Materials
VMC
$34B
| $17M | ﹤0.01% |
57,500
+21,500
| +60% | +$6.16M |
|
1172
CALL
Coeur Mining
CDE
$21.8B
| $16.9M | ﹤0.01% |
1,037,900
-112,100
| -10% | -$2.04M |
|
|
1173
PUT
Coeur Mining
CDE
$21.8B
| $16.9M | ﹤0.01% |
1,037,200
+227,200
| +28% | +$4.14M |
|
1174
CALL
Cleveland-Cliffs
CLF
$7.13B
| $16.9M | ﹤0.01% |
1,800,700
+219,200
| +14% | +$2.41M |
|
1175
CALL
TE Connectivity
TEL
$60.4B
| $16.9M | ﹤0.01% |
83,800
+12,500
| +18% | +$2.66M |
|
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.