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 | |
|---|---|---|---|---|---|---|
2926
CALL
Sun Communities
SUI
$14.5B
| $2.22M | ﹤0.01% |
18,500
+5,100
| +38% | +$638K |
|
2927
B2Gold
BTG
$7.41B
| $2.22M | ﹤0.01% |
593,052
-125,176
| -17% | -$574K |
|
2928
CALL
Sigma Lithium
SGML
$1.39B
| $2.22M | ﹤0.01% |
175,200
-340,400
| -66% | -$5.72M |
|
|
BAND
2929
PUT
Bandwidth Inc
BAND
$1.41B
| $2.22M | ﹤0.01% |
+35,000
| New | +$1.57M |
|
2930
PUT
Olin
OLN
$1.98B
| $2.21M | ﹤0.01% |
111,600
+12,700
| +13% | +$332K |
|
2931
CALL
Coca-Cola Europacific Partners
CCEP
$46.7B
| $2.21M | ﹤0.01% |
22,100
-200
| -0.9% | -$19.1K |
|
2932
CALL
Comstock Resources
CRK
$4.48B
| $2.21M | ﹤0.01% |
148,200
-93,800
| -39% | -$1.43M |
|
2933
GE HealthCare
GEHC
$31.1B
| $2.21M | ﹤0.01% |
34,536
+5,172
| +18% | +$340K |
|
2934
MKS Inc
MKSI
$17.6B
| $2.21M | ﹤0.01% |
4,960
+2,703
| +120% | +$846K |
|
2935
PUT
United States Gasoline Fund
UGA
$153M
| $2.2M | ﹤0.01% |
21,400
+9,200
| +75% | +$997K |
|
2936
Strive Inc
ASST
$2.53B
| $2.2M | ﹤0.01% |
201,830
+186,729
| +1,237% | +$2.76M |
|
2937
Fluence Energy
FLNC
$1.48B
| $2.2M | ﹤0.01% |
110,420
+67,469
| +157% | +$1.25M |
|
2938
CALL
PagSeguro Digital
PAGS
$2.68B
| $2.19M | ﹤0.01% |
242,400
+104,400
| +76% | +$1.01M |
|
2939
Chewy
CHWY
$9.69B
| $2.19M | ﹤0.01% |
+111,594
| New | +$2.53M |
|
2940
NetEase
NTES
$76.4B
| $2.19M | ﹤0.01% |
17,100
+8,136
| +91% | +$960K |
|
2941
PUT
Antero Midstream
AM
$10.7B
| $2.18M | ﹤0.01% |
96,000
+22,400
| +30% | +$486K |
|
2942
CALL
Bit Digital
BTBT
$591M
| $2.18M | ﹤0.01% |
1,212,400
+321,400
| +36% | +$566K |
|
|
VMRK
2943
PUT
Vivmark Residential
VMRK
$50.6B
| $2.18M | ﹤0.01% |
32,100
-22,900
| -42% | -$1.48M |
|
2944
CALL
Xcel Energy
XEL
$47.3B
| $2.18M | ﹤0.01% |
27,100
-7,900
| -23% | -$631K |
|
2945
CALL
Varonis Systems
VRNS
$5.29B
| $2.17M | ﹤0.01% |
51,800
+12,900
| +33% | +$378K |
|
2946
CALL
ICU Medical
ICUI
$4.19B
| $2.17M | ﹤0.01% |
14,800
+11,700
| +377% | +$1.53M |
|
2947
CALL
Jack in the Box
JACK
$310M
| $2.17M | ﹤0.01% |
137,200
+69,400
| +102% | +$856K |
|
2948
Stagwell
STGW
$2.14B
| $2.17M | ﹤0.01% |
291,412
+251,762
| +635% | +$1.67M |
|
2949
CALL
Extra Space Storage
EXR
$29.4B
| $2.16M | ﹤0.01% |
14,900
+2,900
| +24% | +$415K |
|
2950
PUT
Labcorp
LH
$26.5B
| $2.16M | ﹤0.01% |
7,700
+4,500
| +141% | +$1.18M |
|
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.