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 | |
|---|---|---|---|---|---|---|---|
5976
PUT
Vuzix
VUZI
$174M
| $101K | ﹤0.01% |
+34,700
| New | +$109K |
2026 Q2
0 quarters
|
|
5977
PUT
Montana Technologies Corp
AIRJ
$216M
| $100K | ﹤0.01% |
+18,100
| New | +$70.1K |
2026 Q2
0 quarters
|
|
5978
CALL
Comstock
LODE
$130M
| $100K | ﹤0.01% |
24,100
+5,300
| +28% | +$19.3K |
2026 Q1
1 quarter
|
|
5979
CALL
Global Net Lease
GNL
$1.67B
| $99.2K | ﹤0.01% |
+11,100
| New | +$104K |
2026 Q2
0 quarters
|
|
5980
Defiance Daily Target 2x Short RGTI ETF
RGTZ
$120M
| $99.1K | ﹤0.01% |
5,335
+3,494
| +190% | +$181K |
2026 Q1
1 quarter
|
|
5981
CALL
SunCoke Energy
SXC
$850M
| $99K | ﹤0.01% |
+12,300
| New | +$95K |
2026 Q2
0 quarters
|
|
5982
MNTN Inc
MNTN
$724M
| $98.7K | ﹤0.01% |
+10,731
| New | +$97.7K |
2026 Q2
0 quarters
|
|
5983
PUT
VinFast Auto
VFS
$7.18B
| $98.6K | ﹤0.01% |
31,600
-34,600
| -52% | -$130K |
2026 Q1
1 quarter
|
|
5984
CALL
Merlin Inc
MRLN
$88.7M
| $98.4K | ﹤0.01% |
+17,300
| New | +$146K |
2026 Q2
0 quarters
|
|
5985
CALL
Avino Silver & Gold Mines
ASM
$788M
| $98.3K | ﹤0.01% |
+15,500
| New | +$105K |
2026 Q2
0 quarters
|
|
5986
CALL
Fossil Group
FOSL
$390M
| $97.7K | ﹤0.01% |
23,600
-44,100
| -65% | -$198K |
2025 Q4
2 quarters
|
|
5987
Melco Resorts & Entertainment
MLCO
$1.42B
| $97.2K | ﹤0.01% |
+18,451
| New | +$103K |
2026 Q2
0 quarters
|
|
5988
CALL
Virco
VIRC
$99.2M
| $97K | ﹤0.01% |
+15,800
| New | +$95.8K |
2026 Q2
0 quarters
|
|
5989
PUT
Veritone
VERI
$57.9M
| $96.4K | ﹤0.01% |
70,400
-4,200
| -6% | -$8.02K |
2025 Q4
2 quarters
|
|
5990
Paysafe
PSFE
$300M
| $96.4K | ﹤0.01% |
12,903
-4,351
| -25% | -$34K |
2026 Q1
1 quarter
|
|
5991
A2Z Smart Technologies
AZ
$247M
| $95.9K | ﹤0.01% |
16,484
-7,507
| -31% | -$51.2K |
2026 Q1
1 quarter
|
|
5992
PUT
Nano X Imaging
NNOX
$29.3M
| $95.9K | ﹤0.01% |
82,700
+10,600
| +15% | +$19.9K |
2026 Q1
1 quarter
|
|
5993
PUT
Vertical Aerospace
EVTL
$64.9M
| $95.9K | ﹤0.01% |
55,100
+37,000
| +204% | +$88.9K |
2026 Q1
1 quarter
|
|
5994
CALL
Organigram Holdings
OGI
$134M
| $95.5K | ﹤0.01% |
93,600
-71,500
| -43% | -$87.3K |
2026 Q1
1 quarter
|
|
5995
CALL
Gevo
GEVO
$287M
| $95.2K | ﹤0.01% |
63,500
-8,300
| -12% | -$14.6K |
2026 Q1
1 quarter
|
|
5996
Inogen
INGN
$188M
| $95.2K | ﹤0.01% |
+14,763
| New | +$97.7K |
2026 Q2
0 quarters
|
|
5997
Defiance Daily Target 2x Short RKLB ETF
RKLZ
$28.6M
| $94.2K | ﹤0.01% |
+7,476
| New | +$305K |
2026 Q2
0 quarters
|
|
|
5998
Nano X Imaging
NNOX
$29.3M
| $94K | ﹤0.01% |
81,052
+14,851
| +22% | +$27.9K |
2026 Q1
1 quarter
|
|
5999
PUT
CPS Technologies
CPSH
$68.1M
| $93.8K | ﹤0.01% |
+17,000
| New | +$100K |
2026 Q2
0 quarters
|
|
6000
Algonquin Power & Utilities
AQN
$4.17B
| $93.4K | ﹤0.01% |
15,941
-3,574
| -18% | -$21.7K |
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.