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 | |
|---|---|---|---|---|---|---|
5601
PUT
Bausch Health
BHC
$2.45B
| $214K | ﹤0.01% |
43,400
-6,900
| -14% | -$37K |
|
5602
CALL
GoodRx Holdings
GDRX
$1.19B
| $214K | ﹤0.01% |
74,200
+11,100
| +18% | +$28.2K |
|
|
VLRS
5603
CALL
Controladora Vuela Compania de Aviacion
VLRS
$787M
| $214K | ﹤0.01% |
+22,800
| New | +$176K |
|
5604
PUT
PagSeguro Digital
PAGS
$2.68B
| $214K | ﹤0.01% |
23,600
-37,400
| -61% | -$362K |
|
5605
CALL
Mission Produce
AVO
$1.12B
| $213K | ﹤0.01% |
+18,100
| New | +$229K |
|
5606
CALL
Enovis
ENOV
$1.07B
| $213K | ﹤0.01% |
10,300
-2,400
| -19% | -$56.6K |
|
5607
PUT
Vanguard Total Bond Market
BND
$160B
| $213K | ﹤0.01% |
2,900
+100
| +4% | +$7.34K |
|
5608
Nuveen Real Asset Income & Growth Fund
JRI
$439M
| $213K | ﹤0.01% |
+16,409
| New | +$211K |
|
5609
PUT
Reinsurance Group of America
RGA
$16.5B
| $213K | ﹤0.01% |
+1,000
| New | +$209K |
|
5610
ACV Auctions
ACVA
$1.19B
| $212K | ﹤0.01% |
+29,503
| New | +$167K |
|
5611
PUT
Prospect Capital
PSEC
$1.14B
| $212K | ﹤0.01% |
91,800
-19,100
| -17% | -$47K |
|
5612
CALL
Core Laboratories
CLB
$575M
| $212K | ﹤0.01% |
+18,200
| New | +$260K |
|
5613
GeoPark
GPRK
$750M
| $212K | ﹤0.01% |
23,279
-5,132
| -18% | -$50K |
|
5614
PUT
Clearwater Paper
CLW
$337M
| $212K | ﹤0.01% |
+13,500
| New | +$203K |
|
5615
Park Aerospace
PKE
$680M
| $212K | ﹤0.01% |
+5,543
| New | +$184K |
|
5616
CALL
Ocugen
OCGN
$461M
| $211K | ﹤0.01% |
138,100
-9,500
| -6% | -$14.4K |
|
5617
CALL
News Corp Class A
NWSA
$16.3B
| $211K | ﹤0.01% |
+8,500
| New | +$220K |
|
|
MPT
5618
Medical Properties Trust
MPT
$2.39B
| $211K | ﹤0.01% |
+45,682
| New | +$226K |
|
5619
CALL
Verra Mobility
VRRM
$619M
| $211K | ﹤0.01% |
49,600
+14,400
| +41% | +$152K |
|
|
FINV
5620
PUT
FinVolution Group
FINV
$800M
| $211K | ﹤0.01% |
44,000
+500
| +1% | +$2.47K |
|
5621
PUT
Tecnoglass Holdings
TGLS
$1.81B
| $211K | ﹤0.01% |
4,500
-4,600
| -51% | -$199K |
|
5622
CALL
Deluxe
DLX
$1.11B
| $210K | ﹤0.01% |
+8,800
| New | +$229K |
|
|
SFIX
5623
PUT
Stitch Fix
SFIX
$407M
| $210K | ﹤0.01% |
51,100
+18,000
| +54% | +$65.5K |
|
5624
PUT
SouthState Bank Corp
SSB
$10.5B
| $210K | ﹤0.01% |
2,100
-2,400
| -53% | -$231K |
|
5625
UWM Holdings
UWMC
$2.36B
| $209K | ﹤0.01% |
91,434
+10,288
| +13% | +$32K |
|
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.