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 | |
|---|---|---|---|---|---|---|
|
B
2326
Barrick Mining
B
$73.7B
| $4.05M | ﹤0.01% |
110,228
-19,822
| -15% | -$813K |
|
2327
DHT Holdings
DHT
$3.36B
| $4.05M | ﹤0.01% |
+244,891
| New | +$4.37M |
|
2328
PUT
UL Solutions
ULS
$14.9B
| $4.04M | ﹤0.01% |
39,700
+32,100
| +422% | +$3.04M |
|
2329
Churchill Downs
CHDN
$6.07B
| $4.04M | ﹤0.01% |
45,090
+24,107
| +115% | +$2.16M |
|
2330
PUT
Dover
DOV
$26B
| $4.04M | ﹤0.01% |
18,000
-2,700
| -13% | -$588K |
|
|
SERV
2331
CALL
Serve Robotics
SERV
$429M
| $4.03M | ﹤0.01% |
612,000
+269,100
| +78% | +$2.25M |
|
2332
PUT
Principal Financial Group
PFG
$25B
| $4.01M | ﹤0.01% |
37,200
+10,000
| +37% | +$1.02M |
|
2333
CALL
WEX
WEX
$6.61B
| $4.01M | ﹤0.01% |
28,400
+26,100
| +1,135% | +$3.87M |
|
2334
CALL
Aramark
ARMK
$15B
| $4.01M | ﹤0.01% |
70,400
+40,000
| +132% | +$1.97M |
|
2335
lululemon athletica
LULU
$11.1B
| $4.01M | ﹤0.01% |
35,082
-51,006
| -59% | -$6.81M |
|
2336
CALL
Everest Group
EG
$14.6B
| $4M | ﹤0.01% |
11,200
+5,600
| +100% | +$1.92M |
|
2337
State Street Technology Select Sector SPDR ETF
XLK
$122B
| $3.99M | ﹤0.01% |
20,937
-1,980
| -9% | -$338K |
|
2338
CALL
West Pharmaceutical
WST
$23.9B
| $3.98M | ﹤0.01% |
11,100
+2,900
| +35% | +$887K |
|
2339
Marathon Digital Holdings
MARA
$4.37B
| $3.98M | ﹤0.01% |
286,832
-821,934
| -74% | -$10.3M |
|
|
USAR
2340
USA Rare Earth Inc
USAR
$4.31B
| $3.98M | ﹤0.01% |
+184,431
| New | +$4.2M |
|
2341
CALL
Helmerich & Payne
HP
$4.43B
| $3.98M | ﹤0.01% |
121,500
+8,200
| +7% | +$307K |
|
2342
CALL
SPX Corp
SPXC
$9.84B
| $3.97M | ﹤0.01% |
16,200
+3,900
| +32% | +$853K |
|
|
BLD
2343
CALL
DELISTED
TopBuild
BLD
| $3.97M | ﹤0.01% |
11,200
+9,300
| +489% | +$3.83M |
|
2344
PUT
Assured Guaranty
AGO
$3.33B
| $3.97M | ﹤0.01% |
49,500
+42,600
| +617% | +$3.36M |
|
2345
PUT
Chemours
CC
$2.3B
| $3.96M | ﹤0.01% |
193,200
+68,000
| +54% | +$1.56M |
|
2346
PUT
Zions Bancorporation
ZION
$10.1B
| $3.96M | ﹤0.01% |
57,200
-41,400
| -42% | -$2.61M |
|
2347
ProShares UltraPro Dow 30
UDOW
$872M
| $3.96M | ﹤0.01% |
56,454
+5,402
| +11% | +$335K |
|
|
EMBJ
2348
PUT
Embraer S.A. ADS
EMBJ
$13.1B
| $3.96M | ﹤0.01% |
62,000
-9,300
| -13% | -$571K |
|
2349
PUT
US Foods
USFD
$22.5B
| $3.95M | ﹤0.01% |
38,600
+19,500
| +102% | +$1.74M |
|
2350
CALL
Broadridge
BR
$19.7B
| $3.94M | ﹤0.01% |
28,800
+22,000
| +324% | +$3.32M |
|
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.