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 | |
|---|---|---|---|---|---|---|---|
6101
The Honest Company
HNST
$515M
| $65.9K | ﹤0.01% |
18,006
-19,304
| -52% | -$65.1K |
2026 Q1
1 quarter
|
|
6102
KRONOS Worldwide
KRO
$900M
| $65.5K | ﹤0.01% |
10,344
-3
| -0% | -$21 |
2026 Q1
1 quarter
|
|
6103
PUT
Starfighters Space Inc
FJET
$41M
| $65.4K | ﹤0.01% |
+12,300
| New | +$73.6K |
2026 Q2
0 quarters
|
|
6104
PUT
Vista Gold
VGZ
$385M
| $64.7K | ﹤0.01% |
33,900
+14,100
| +71% | +$30.7K |
2026 Q1
1 quarter
|
|
6105
Gevo
GEVO
$287M
| $64.7K | ﹤0.01% |
43,111
+24,117
| +127% | +$42.5K |
2026 Q1
1 quarter
|
|
6106
PUT
Runway Growth Finance
RWAY
$271M
| $64K | ﹤0.01% |
+11,400
| New | +$72.2K |
2026 Q2
0 quarters
|
|
|
6107
Runway Growth Finance
RWAY
$271M
| $63.7K | ﹤0.01% |
+11,354
| New | +$71.9K |
2026 Q2
0 quarters
|
|
6108
Alto Ingredients
ALTO
$280M
| $63.2K | ﹤0.01% |
+11,091
| New | +$56.6K |
2026 Q2
0 quarters
|
|
6109
PUT
SEALSQ Corp
LAES
$349M
| $63K | ﹤0.01% |
20,000
-18,400
| -48% | -$54.9K |
2026 Q1
1 quarter
|
|
6110
PUT
Microvision
MVIS
$36.1M
| $62.8K | ﹤0.01% |
12,813
+3,506
| +38% | +$28.9K |
2026 Q1
1 quarter
|
|
6111
Nextdoor Holdings, Inc. Class A Common Stock
NXDR
$940M
| $62.6K | ﹤0.01% |
27,581
-18,639
| -40% | -$34.8K |
2025 Q4
2 quarters
|
|
6112
Defi Technologies
DEFT
$157M
| $62.6K | ﹤0.01% |
121,742
+52,100
| +75% | +$35.3K |
2026 Q1
1 quarter
|
|
6113
PUT
NeoVolta
NEOV
$127M
| $62.4K | ﹤0.01% |
+19,800
| New | +$50.2K |
2026 Q2
0 quarters
|
|
6114
FTAI Infrastructure
FIP
$300M
| $61.4K | ﹤0.01% |
+13,234
| New | +$65.9K |
2026 Q2
0 quarters
|
|
6115
PUT
Lantronix
LTRX
$270M
| $60.6K | ﹤0.01% |
+10,300
| New | +$66K |
2026 Q2
0 quarters
|
|
6116
CALL
Gray Television
GTN
$472M
| $59.9K | ﹤0.01% |
15,100
+700
| +5% | +$3.22K |
2026 Q1
1 quarter
|
|
6117
Platinum Group Metals
PLG
$136M
| $58.3K | ﹤0.01% |
43,184
-38,755
| -47% | -$64.9K |
2026 Q1
1 quarter
|
|
6118
PUT
Gaotu Techedu
GOTU
$597M
| $58.3K | ﹤0.01% |
35,100
+9,200
| +36% | +$16.7K |
2023 Q4
10 quarters
|
|
6119
PUT
CuriosityStream
CURI
$169M
| $57.2K | ﹤0.01% |
21,500
+9,100
| +73% | +$26.9K |
2026 Q1
1 quarter
|
|
6120
CALL
Mobilicom Ltd
MOB
$40.5M
| $56.9K | ﹤0.01% |
+11,100
| New | +$65K |
2026 Q2
0 quarters
|
|
6121
PUT
Gold Royalty Corp
GROY
$656M
| $56.9K | ﹤0.01% |
20,600
-56,500
| -73% | -$186K |
2025 Q4
2 quarters
|
|
6122
PUT
Microbot Medical
MBOT
$65.4M
| $56.6K | ﹤0.01% |
29,000
-12,400
| -30% | -$25.3K |
2026 Q1
1 quarter
|
|
6123
Aquestive Therapeutics
AQST
$502M
| $56.5K | ﹤0.01% |
+13,584
| New | +$57.2K |
2026 Q2
0 quarters
|
|
6124
PUT
Children's Place
PLCE
$23.3M
| $56.4K | ﹤0.01% |
18,500
-41,300
| -69% | -$140K |
2025 Q2
4 quarters
|
|
6125
PUT
Streamex Corp
STEX
$51.2M
| $56.3K | ﹤0.01% |
66,200
+28,900
| +77% | +$29.9K |
2026 Q1
1 quarter
|
|
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.