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 | |
|---|---|---|---|---|---|---|
2151
CALL
Ameriprise Financial
AMP
$49.5B
| $4.73M | ﹤0.01% |
10,300
+5,600
| +119% | +$2.57M |
|
2152
Alpha and Omega Semiconductor
AOSL
$763M
| $4.72M | ﹤0.01% |
+99,791
| New | +$4.01M |
|
2153
PUT
United States Natural Gas Fund
UNG
$554M
| $4.68M | ﹤0.01% |
399,000
-107,900
| -21% | -$1.21M |
|
2154
CALL
Regions Financial
RF
$25.9B
| $4.67M | ﹤0.01% |
154,800
-60,600
| -28% | -$1.7M |
|
2155
CALL
Saia
SAIA
$9.52B
| $4.67M | ﹤0.01% |
11,100
-600
| -5% | -$264K |
|
2156
CALL
Par Pacific Holdings
PARR
$4.07B
| $4.67M | ﹤0.01% |
83,300
-1,100
| -1% | -$65.5K |
|
2157
PUT
Lightpath Technologies
LPTH
$607M
| $4.67M | ﹤0.01% |
285,400
+197,600
| +225% | +$2.76M |
|
|
CNR
2158
CALL
Core Natural Resources Inc
CNR
$4.94B
| $4.66M | ﹤0.01% |
58,200
-28,500
| -33% | -$2.53M |
|
2159
CALL
FMC
FMC
$1.62B
| $4.65M | ﹤0.01% |
404,500
-56,900
| -12% | -$794K |
|
|
AMRZ
2160
CALL
Amrize Ltd
AMRZ
$24B
| $4.64M | ﹤0.01% |
87,100
+25,000
| +40% | +$1.35M |
|
|
GRAL
2161
CALL
GRAIL Inc
GRAL
$3.59B
| $4.64M | ﹤0.01% |
68,000
-15,600
| -19% | -$919K |
|
2162
Honeywell
HON
$66.4B
| $4.64M | ﹤0.01% |
20,717
-5,141
| -20% | -$1.15M |
|
2163
PUT
Sarepta Therapeutics
SRPT
$2.38B
| $4.63M | ﹤0.01% |
257,900
-23,400
| -8% | -$443K |
|
|
SGI
2164
PUT
Somnigroup International
SGI
$14.7B
| $4.63M | ﹤0.01% |
59,100
+50,600
| +595% | +$3.71M |
|
2165
PUT
Sanmina
SANM
$10.6B
| $4.63M | ﹤0.01% |
18,300
+9,400
| +106% | +$2.06M |
|
2166
CALL
Ball Corp
BALL
$16.6B
| $4.63M | ﹤0.01% |
74,200
+16,100
| +28% | +$947K |
|
2167
CALL
Herbalife
HLF
$1.3B
| $4.63M | ﹤0.01% |
352,000
-11,300
| -3% | -$156K |
|
2168
PUT
Fastenal
FAST
$56.9B
| $4.62M | ﹤0.01% |
96,200
-71,900
| -43% | -$3.26M |
|
2169
PUT
Huntington Ingalls Industries
HII
$11.3B
| $4.62M | ﹤0.01% |
16,500
-11,000
| -40% | -$3.68M |
|
2170
PUT
QuantumScape Corp
QS
$3.37B
| $4.61M | ﹤0.01% |
610,400
+108,500
| +22% | +$814K |
|
2171
CALL
Northern Oil and Gas
NOG
$2.76B
| $4.6M | ﹤0.01% |
253,700
+80,600
| +47% | +$1.91M |
|
|
MIAX
2172
CALL
Miami International Holdings
MIAX
$4.21B
| $4.6M | ﹤0.01% |
123,900
+106,500
| +612% | +$4.76M |
|
2173
Alpha Metallurgical Resources
AMR
$2.86B
| $4.6M | ﹤0.01% |
27,901
+23,155
| +488% | +$4.41M |
|
2174
CALL
CBRE Group
CBRE
$42.8B
| $4.59M | ﹤0.01% |
34,100
-9,300
| -21% | -$1.28M |
|
2175
PUT
Celanese
CE
$4.9B
| $4.59M | ﹤0.01% |
99,700
+5,800
| +6% | +$336K |
|
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.