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 | |
|---|---|---|---|---|---|---|
5726
PUT
Graphic Packaging
GPK
$3.09B
| $183K | ﹤0.01% |
17,300
+4,700
| +37% | +$47.9K |
|
5727
PUT
Liberty Global Class C
LBTYK
$3.56B
| $183K | ﹤0.01% |
+16,600
| New | +$192K |
|
5728
PUT
AdaptHealth
AHCO
$866M
| $182K | ﹤0.01% |
17,500
-86,200
| -83% | -$962K |
|
5729
CALL
PagerDuty
PD
$1.07B
| $181K | ﹤0.01% |
18,800
+6,000
| +47% | +$45.4K |
|
5730
PUT
Flywire
FLYW
$2.26B
| $181K | ﹤0.01% |
10,300
-59,400
| -85% | -$878K |
|
|
FINV
5731
FinVolution Group
FINV
$800M
| $180K | ﹤0.01% |
37,682
+848
| +2% | +$4.19K |
|
5732
PUT
iQIYI
IQ
$849M
| $180K | ﹤0.01% |
172,800
-70,600
| -29% | -$82.1K |
|
5733
PUT
Inter&Co
INTR
$2.5B
| $179K | ﹤0.01% |
+33,000
| New | +$222K |
|
5734
CALL
Quantum-Si Incorporated
QSI
$168M
| $179K | ﹤0.01% |
202,200
-2,500
| -1% | -$2.38K |
|
|
DHY
5735
UBS Asset Management High Yield Credit Fund
DHY
$233M
| $179K | ﹤0.01% |
+100,441
| New | +$179K |
|
|
MNTN
5736
CALL
MNTN Inc
MNTN
$969M
| $178K | ﹤0.01% |
19,400
-16,400
| -46% | -$149K |
|
5737
iShares MSCI Indonesia ETF
EIDO
$507M
| $178K | ﹤0.01% |
+15,758
| New | +$220K |
|
5738
PUT
Valens Semiconductor
VLN
$185M
| $178K | ﹤0.01% |
78,800
+22,300
| +39% | +$50K |
|
5739
CALL
Stem
STEM
$53.6M
| $178K | ﹤0.01% |
22,800
+7,800
| +52% | +$72.3K |
|
5740
PUT
Zevra Therapeutics
ZVRA
$736M
| $178K | ﹤0.01% |
+12,400
| New | +$138K |
|
|
CAN
5741
CALL
Canaan Creative
CAN
$268M
| $177K | ﹤0.01% |
616,700
-207,600
| -25% | -$90.2K |
|
|
GOOS
5742
PUT
Canada Goose Holdings
GOOS
$795M
| $177K | ﹤0.01% |
18,600
-41,900
| -69% | -$442K |
|
|
ACB
5743
PUT
Aurora Cannabis
ACB
$250M
| $177K | ﹤0.01% |
63,300
+300
| +0.5% | +$1K |
|
5744
PUT
Aquestive Therapeutics
AQST
$670M
| $176K | ﹤0.01% |
42,400
+20,700
| +95% | +$87.1K |
|
5745
PUT
Vaalco Energy
EGY
$631M
| $176K | ﹤0.01% |
34,700
-22,800
| -40% | -$131K |
|
|
TONX
5746
PUT
TON Strategy Co
TONX
$183M
| $176K | ﹤0.01% |
+69,000
| New | +$204K |
|
|
DHC
5747
PUT
Diversified Healthcare Trust
DHC
$1.82B
| $176K | ﹤0.01% |
18,900
-2,100
| -10% | -$17.2K |
|
5748
PUT
Columbus McKinnon
CMCO
$544M
| $176K | ﹤0.01% |
11,600
-9,000
| -44% | -$134K |
|
5749
CALL
Costamare
CMRE
$1.88B
| $174K | ﹤0.01% |
12,400
-300
| -2% | -$4.92K |
|
5750
PUT
Designer Brands
DBI
$267M
| $174K | ﹤0.01% |
+29,800
| New | +$210K |
|
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.