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 | |
|---|---|---|---|---|---|---|
1301
State Street Communication Services Select Sector SPDR ETF
XLC
$22.4B
| $14.2M | ﹤0.01% |
+132,937
| New | +$15.1M |
|
1302
PUT
Travelers Companies
TRV
$77B
| $14.2M | ﹤0.01% |
43,100
+19,800
| +85% | +$6M |
|
1303
CALL
Restaurant Brands International
QSR
$28B
| $14.2M | ﹤0.01% |
196,100
+143,600
| +274% | +$10.9M |
|
1304
CALL
Wendy's
WEN
$1.53B
| $14.1M | ﹤0.01% |
1,700,200
+938,400
| +123% | +$6.71M |
|
1305
PUT
Pultegroup
PHM
$23.7B
| $14M | ﹤0.01% |
102,000
-3,100
| -3% | -$376K |
|
1306
PUT
Monster Beverage
MNST
$85.8B
| $13.9M | ﹤0.01% |
289,200
+85,800
| +42% | +$3.61M |
|
1307
PUT
Darden Restaurants
DRI
$24.6B
| $13.9M | ﹤0.01% |
67,300
+11,700
| +21% | +$2.34M |
|
1308
PUT
CRISPR Therapeutics
CRSP
$5.39B
| $13.8M | ﹤0.01% |
253,800
+1,900
| +0.8% | +$100K |
|
1309
CALL
HSBC
HSBC
$367B
| $13.8M | ﹤0.01% |
144,800
-25,700
| -15% | -$2.35M |
|
1310
PUT
O'Reilly Automotive
ORLY
$71.1B
| $13.7M | ﹤0.01% |
149,100
+82,400
| +124% | +$7.52M |
|
1311
CALL
Joby Aviation
JOBY
$6.67B
| $13.7M | ﹤0.01% |
1,534,800
+532,900
| +53% | +$5.15M |
|
1312
CALL
Sprott Uranium Miners ETF
URNM
$2.16B
| $13.6M | ﹤0.01% |
268,700
-10,300
| -4% | -$637K |
|
1313
PUT
Cognizant
CTSH
$28.1B
| $13.6M | ﹤0.01% |
351,000
+241,900
| +222% | +$12.7M |
|
1314
PUT
Cardinal Health
CAH
$57.5B
| $13.5M | ﹤0.01% |
57,000
-2,700
| -5% | -$561K |
|
1315
CALL
Cintas
CTAS
$80.2B
| $13.5M | ﹤0.01% |
79,300
-11,900
| -13% | -$2.06M |
|
1316
Wayfair
W
$13.6B
| $13.5M | ﹤0.01% |
145,868
+121,731
| +504% | +$8.97M |
|
1317
CALL
Paycom
PAYC
$10.4B
| $13.5M | ﹤0.01% |
107,100
-2,000
| -2% | -$261K |
|
1318
Monolithic Power Systems
MPWR
$60.1B
| $13.5M | ﹤0.01% |
9,733
+6,602
| +211% | +$9.91M |
|
1319
CALL
Copa Holdings
CPA
$5.4B
| $13.4M | ﹤0.01% |
86,400
+65,300
| +309% | +$8.5M |
|
1320
CALL
Trip.com Group
TCOM
$25.8B
| $13.4M | ﹤0.01% |
337,300
+29,900
| +10% | +$1.48M |
|
1321
CALL
United States Natural Gas Fund
UNG
$554M
| $13.4M | ﹤0.01% |
1,144,800
+191,200
| +20% | +$2.14M |
|
1322
Applied Digital
APLD
$7.5B
| $13.4M | ﹤0.01% |
359,607
+291,010
| +424% | +$11.2M |
|
1323
PUT
Revolution Medicines
RVMD
$45B
| $13.4M | ﹤0.01% |
71,600
-34,000
| -32% | -$4.97M |
|
1324
Enphase Energy
ENPH
$4.81B
| $13.4M | ﹤0.01% |
272,009
+185,108
| +213% | +$8.43M |
|
|
PSKY
1325
PUT
Paramount Skydance Corp
PSKY
$12.2B
| $13.4M | ﹤0.01% |
1,356,500
+721,500
| +114% | +$7.59M |
|
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.