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 | |
|---|---|---|---|---|---|---|
3826
CALL
TAL Education Group
TAL
$6.88B
| $1.03M | ﹤0.01% |
107,600
-78,100
| -42% | -$820K |
|
3827
PUT
SPX Corp
SPXC
$9.84B
| $1.03M | ﹤0.01% |
4,200
-2,900
| -41% | -$634K |
|
|
ECG
3828
CALL
Everus Construction Group
ECG
$5.99B
| $1.03M | ﹤0.01% |
6,200
-400
| -6% | -$58.6K |
|
3829
CALL
Richtech Robotics
RR
$394M
| $1.03M | ﹤0.01% |
487,300
-28,100
| -5% | -$68.2K |
|
3830
PUT
Progress Software
PRGS
$1.81B
| $1.03M | ﹤0.01% |
+30,600
| New | +$906K |
|
3831
CALL
Ezcorp Inc
EZPW
$2.05B
| $1.03M | ﹤0.01% |
29,700
+14,700
| +98% | +$464K |
|
3832
CALL
CMS Energy
CMS
$21.5B
| $1.03M | ﹤0.01% |
13,400
+7,400
| +123% | +$555K |
|
3833
CALL
Euronet Worldwide
EEFT
$2.76B
| $1.02M | ﹤0.01% |
14,000
+5,100
| +57% | +$356K |
|
3834
PUT
iShares 0-5 Year Investment Grade Corporate Bond ETF
SLQD
$2.4B
| $1.02M | ﹤0.01% |
13,500
+7,900
| +141% | +$398K |
|
3835
CALL
NiSource
NI
$19.8B
| $1.02M | ﹤0.01% |
21,500
+6,300
| +41% | +$298K |
|
|
AAOX
3836
Tradr 2X Long AAOI Daily ETF
AAOX
$170M
| $1.02M | ﹤0.01% |
32,330
+6,435
| +25% | +$330K |
|
3837
CALL
Tenaris
TS
$28.5B
| $1.02M | ﹤0.01% |
18,400
+12,800
| +229% | +$777K |
|
3838
PUT
Jack in the Box
JACK
$310M
| $1.02M | ﹤0.01% |
64,500
+20,700
| +47% | +$255K |
|
3839
CALL
Credit Acceptance
CACC
$6.28B
| $1.02M | ﹤0.01% |
1,600
-1,400
| -47% | -$749K |
|
3840
PUT
Triple Flag Precious Metals
TFPM
$6.99B
| $1.02M | ﹤0.01% |
33,900
+3,200
| +10% | +$103K |
|
3841
PUT
Coursera
COUR
$1.53B
| $1.02M | ﹤0.01% |
180,100
+91,400
| +103% | +$519K |
|
3842
CALL
Genuine Parts
GPC
$19B
| $1.01M | ﹤0.01% |
8,600
-33,000
| -79% | -$3.44M |
|
3843
CALL
Bentley Systems
BSY
$10.2B
| $1.01M | ﹤0.01% |
33,900
-17,400
| -34% | -$566K |
|
3844
PennyMac Financial
PFSI
$3.81B
| $1.01M | ﹤0.01% |
11,626
-41,045
| -78% | -$3.57M |
|
3845
CALL
Appian
APPN
$2.75B
| $1.01M | ﹤0.01% |
44,200
-80,100
| -64% | -$1.78M |
|
3846
PUT
Installed Building Products
IBP
$6.34B
| $1.01M | ﹤0.01% |
4,400
+3,200
| +267% | +$777K |
|
3847
CALL
Daktronics
DAKT
$931M
| $1.01M | ﹤0.01% |
51,700
-2,700
| -5% | -$53.5K |
|
3848
PUT
Idaho Strategic Resources
IDR
$498M
| $1.01M | ﹤0.01% |
30,800
+13,900
| +82% | +$540K |
|
3849
CALL
Porch Group
PRCH
$2.04B
| $1.01M | ﹤0.01% |
67,000
+51,500
| +332% | +$507K |
|
3850
CALL
NovoCure
NVCR
$2.09B
| $1.01M | ﹤0.01% |
66,500
+33,400
| +101% | +$505K |
|
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.