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 |
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 | Held Since | |
|---|---|---|---|---|---|---|---|
3601
Globant
GLOB
$1.94B
| $1.23M | ﹤0.01% |
+42,519
| New | +$1.7M |
2026 Q2
0 quarters
|
|
3602
CALL
ARK Autonomous Technology & Robotics ETF
ARKQ
$1.77B
| $1.23M | ﹤0.01% |
9,300
-3,400
| -27% | -$442K |
2025 Q4
2 quarters
|
|
3603
Newell Brands
NWL
$2.28B
| $1.23M | ﹤0.01% |
200,068
-51,939
| -21% | -$220K |
2024 Q1
9 quarters
|
|
3604
PUT
Universal Technical Institute
UTI
$1.2B
| $1.23M | ﹤0.01% |
28,700
+15,800
| +122% | +$607K |
2025 Q4
2 quarters
|
|
3605
CALL
Heartflow Inc
HTFL
$4.93B
| $1.23M | ﹤0.01% |
+41,800
| New | +$1.26M |
2026 Q2
0 quarters
|
|
3606
CALL
BeOne Medicines Ltd
ONC
$42.7B
| $1.23M | ﹤0.01% |
4,300
-1,800
| -30% | -$530K |
2026 Q1
1 quarter
|
|
3607
PUT
Babcock & Wilcox
BW
$618M
| $1.23M | ﹤0.01% |
86,900
+2,200
| +3% | +$37.3K |
2026 Q1
1 quarter
|
|
3608
PUT
Anterix
ATEX
$1.47B
| $1.22M | ﹤0.01% |
11,900
-12,600
| -51% | -$739K |
2025 Q4
2 quarters
|
|
|
ORLA
3609
CALL
DELISTED
Orla Mining
ORLA
| $1.22M | ﹤0.01% |
125,000
+15,300
| +14% | +$204K |
2025 Q3
3 quarters
|
|
3610
PUT
FedEx Freight
FDXF
$16.5B
| $1.22M | ﹤0.01% |
+8,100
| New | +$1.33M |
2026 Q2
0 quarters
|
|
3611
PUT
Voya Financial
VOYA
$8.68B
| $1.22M | ﹤0.01% |
13,500
+2,400
| +22% | +$195K |
2026 Q1
1 quarter
|
|
3612
CALL
Zevra Therapeutics
ZVRA
$583M
| $1.22M | ﹤0.01% |
+85,200
| New | +$947K |
2026 Q2
0 quarters
|
|
3613
BWX Technologies
BWXT
$11.7B
| $1.22M | ﹤0.01% |
+6,275
| New | +$1.31M |
2026 Q2
0 quarters
|
|
3614
Universal Display
OLED
$4B
| $1.22M | ﹤0.01% |
14,103
+11,701
| +487% | +$1.08M |
2026 Q1
1 quarter
|
|
3615
CALL
Pinnacle Financial Partners Inc
PNFP
$15.2B
| $1.22M | ﹤0.01% |
12,100
+2,500
| +26% | +$240K |
2026 Q1
1 quarter
|
|
3616
Tradr 2X Long ALAB Daily ETF
LABX
$42.2M
| $1.22M | ﹤0.01% |
+33,114
| New | +$462K |
2026 Q2
0 quarters
|
|
3617
Booz Allen Hamilton
BAH
$9.33B
| $1.21M | ﹤0.01% |
+20,026
| New | +$1.53M |
2026 Q2
0 quarters
|
|
3618
Americas Gold and Silver
USAS
$1.04B
| $1.21M | ﹤0.01% |
257,262
+112,532
| +78% | +$649K |
2026 Q1
1 quarter
|
|
3619
PUT
AbCellera Biologics
ABCL
$3.83B
| $1.21M | ﹤0.01% |
154,400
+10,000
| +7% | +$48.9K |
2025 Q3
3 quarters
|
|
3620
ProShares Ultra Russell2000
UWM
$211M
| $1.21M | ﹤0.01% |
+17,970
| New | +$1.07M |
2026 Q2
0 quarters
|
|
3621
CALL
Global Ship Lease
GSL
$1.51B
| $1.21M | ﹤0.01% |
32,100
+2,400
| +8% | +$93.6K |
2025 Q3
3 quarters
|
|
3622
DELISTED
Taylor Morrison
TMHC
| $1.21M | ﹤0.01% |
+16,805
| New | +$1.07M |
2026 Q2
0 quarters
|
|
3623
PUT
Life Time Group Holdings
LTH
$9.37B
| $1.2M | ﹤0.01% |
+29,500
| New | +$936K |
2026 Q2
0 quarters
|
|
3624
PUT
Mueller Industries
MLI
$11.8B
| $1.2M | ﹤0.01% |
19,600
+3,600
| +23% | +$236K |
2026 Q1
1 quarter
|
|
3625
Novanta
NOVT
$5.32B
| $1.2M | ﹤0.01% |
+7,417
| New | +$1.07M |
2026 Q2
0 quarters
|
|
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.