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 | |
|---|---|---|---|---|---|---|
1726
PUT
ProShares UltraShort S&P500
SDS
$385M
| $7.87M | ﹤0.01% |
138,400
-3,000
| -2% | -$183K |
|
1727
Constellation Brands
STZ
$21.9B
| $7.87M | ﹤0.01% |
56,587
+36,830
| +186% | +$5.47M |
|
1728
iShares Gold Trust
IAU
$65.8B
| $7.87M | ﹤0.01% |
104,170
+76,310
| +274% | +$6.48M |
|
1729
PUT
Entegris
ENTG
$21.2B
| $7.86M | ﹤0.01% |
43,700
+11,200
| +34% | +$1.62M |
|
1730
ProShares UltraShort Bloomberg Crude Oil
SCO
$678M
| $7.85M | ﹤0.01% |
224,065
+212,289
| +1,803% | +$6.12M |
|
1731
CALL
GSK
GSK
$100B
| $7.84M | ﹤0.01% |
149,600
-41,800
| -22% | -$2.21M |
|
1732
CALL
The GEO Group
GEO
$4.18B
| $7.84M | ﹤0.01% |
265,300
-155,800
| -37% | -$3.53M |
|
1733
CALL
Vail Resorts
MTN
$4.81B
| $7.83M | ﹤0.01% |
57,500
+12,800
| +29% | +$1.67M |
|
1734
PUT
Vale
VALE
$65B
| $7.81M | ﹤0.01% |
519,100
-3,100
| -0.6% | -$50.5K |
|
1735
CALL
Peloton Interactive
PTON
$2.37B
| $7.8M | ﹤0.01% |
1,320,500
+388,500
| +42% | +$2.1M |
|
1736
Energy Transfer Partners
ET
$74B
| $7.8M | ﹤0.01% |
408,157
+208,163
| +104% | +$4.03M |
|
1737
ProShares UltraPro Short S&P 500
SPXU
$390M
| $7.8M | ﹤0.01% |
210,294
-105,924
| -33% | -$4.38M |
|
1738
PUT
Lattice Semiconductor
LSCC
$16.5B
| $7.79M | ﹤0.01% |
50,900
+42,300
| +492% | +$5.46M |
|
1739
PUT
Factset
FDS
$10.7B
| $7.78M | ﹤0.01% |
33,800
-12,700
| -27% | -$2.92M |
|
1740
Dycom Industries
DY
$9.06B
| $7.77M | ﹤0.01% |
+15,377
| New | +$6.72M |
|
1741
PUT
ProShares VIX Short-Term Futures ETF
VIXY
$209M
| $7.76M | ﹤0.01% |
+282,700
| New | +$7.41M |
|
1742
PUT
SK Telecom
SKM
$14.9B
| $7.73M | ﹤0.01% |
240,400
+152,500
| +173% | +$5.64M |
|
1743
PUT
IQVIA
IQV
$44.1B
| $7.73M | ﹤0.01% |
40,000
+29,700
| +288% | +$5.18M |
|
1744
PUT
CRH
CRH
$62.7B
| $7.73M | ﹤0.01% |
72,200
-47,700
| -40% | -$5.25M |
|
1745
QuantumScape Corp
QS
$3.37B
| $7.72M | ﹤0.01% |
1,021,456
+350,296
| +52% | +$2.63M |
|
1746
CALL
Raymond James Financial
RJF
$34.3B
| $7.69M | ﹤0.01% |
50,600
+24,100
| +91% | +$3.66M |
|
1747
AerCap
AER
$22.9B
| $7.69M | ﹤0.01% |
52,737
-8,783
| -14% | -$1.25M |
|
1748
Franco-Nevada
FNV
$51.3B
| $7.68M | ﹤0.01% |
+36,825
| New | +$8.58M |
|
1749
PUT
Century Aluminum
CENX
$4.63B
| $7.67M | ﹤0.01% |
166,700
+56,800
| +52% | +$3.42M |
|
1750
CALL
Sempra
SRE
$55B
| $7.66M | ﹤0.01% |
82,600
+35,100
| +74% | +$3.26M |
|
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.