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 | |
|---|---|---|---|---|---|---|---|
6076
PUT
New Pacific Metals
NEWP
$1.06B
| $70.4K | ﹤0.01% |
17,500
-3,100
| -15% | -$15.2K |
2026 Q1
1 quarter
|
|
6077
CALL
Redwood Trust
RWT
$399M
| $70.2K | ﹤0.01% |
+14,800
| New | +$80.4K |
2026 Q2
0 quarters
|
|
6078
CALL
Pangaea Logistics
PANL
$520M
| $69.6K | ﹤0.01% |
10,700
-16,000
| -60% | -$121K |
2026 Q1
1 quarter
|
|
6079
CALL
Huya Inc
HUYA
$509M
| $69.5K | ﹤0.01% |
30,200
+2,100
| +7% | +$5.95K |
2026 Q1
1 quarter
|
|
6080
CALL
DELISTED
LivePerson
LPSN
| $69.4K | ﹤0.01% |
36,500
+2,300
| +7% | +$5.53K |
2026 Q1
1 quarter
|
|
6081
PUT
Platinum Group Metals
PLG
$136M
| $69.3K | ﹤0.01% |
51,300
-47,800
| -48% | -$80K |
2026 Q1
1 quarter
|
|
6082
NET Power
NPWR
$80.5M
| $69.2K | ﹤0.01% |
+41,449
| New | +$75.1K |
2026 Q2
0 quarters
|
|
6083
Aemetis
AMTX
$93.8M
| $69.2K | ﹤0.01% |
+42,206
| New | +$103K |
2026 Q2
0 quarters
|
|
6084
Resources Connection
RGP
$93.3M
| $68.8K | ﹤0.01% |
16,194
-1,982
| -11% | -$8.33K |
2026 Q1
1 quarter
|
|
6085
Unisys
UIS
$184M
| $68.8K | ﹤0.01% |
+18,803
| New | +$59K |
2026 Q2
0 quarters
|
|
6086
PUT
AudioEye
AEYE
$102M
| $68.6K | ﹤0.01% |
+11,800
| New | +$82.1K |
2026 Q2
0 quarters
|
|
6087
Veritone
VERI
$57.9M
| $68.4K | ﹤0.01% |
49,936
+13,822
| +38% | +$26.4K |
2025 Q4
2 quarters
|
|
6088
PUT
Dingdong
DDL
$429M
| $68.3K | ﹤0.01% |
35,400
+9,400
| +36% | +$23.3K |
2026 Q1
1 quarter
|
|
6089
PUT
Canopy Growth
CGC
$286M
| $68.1K | ﹤0.01% |
71,700
-87,600
| -55% | -$93K |
2025 Q2
4 quarters
|
|
6090
CALL
Proficient Auto Logistics
PAL
$76M
| $68.1K | ﹤0.01% |
10,000
-10,300
| -51% | -$68.9K |
2026 Q1
1 quarter
|
|
6091
PUT
Chegg
CHGG
$78M
| $67.6K | ﹤0.01% |
66,900
+18,300
| +38% | +$20.1K |
2026 Q1
1 quarter
|
|
6092
Sabre
SABR
$613M
| $67.4K | ﹤0.01% |
32,245
-16,853
| -34% | -$29.5K |
2026 Q1
1 quarter
|
|
6093
Vuzix
VUZI
$174M
| $67.4K | ﹤0.01% |
23,235
+11,418
| +97% | +$36K |
2026 Q1
1 quarter
|
|
6094
PUT
Defi Technologies
DEFT
$157M
| $67.4K | ﹤0.01% |
131,000
+35,200
| +37% | +$23.9K |
2026 Q1
1 quarter
|
|
|
6095
New Pacific Metals
NEWP
$1.06B
| $67.3K | ﹤0.01% |
16,746
-1,700
| -9% | -$8.35K |
2026 Q1
1 quarter
|
|
6096
PUT
CCC Intelligent Solutions
CCC
$4.52B
| $67.1K | ﹤0.01% |
+13,000
| New | +$64.3K |
2026 Q2
0 quarters
|
|
6097
CALL
Grid Dynamics Holdings
GDYN
$702M
| $67K | ﹤0.01% |
+11,800
| New | +$73K |
2026 Q2
0 quarters
|
|
6098
CALL
Conduent
CNDT
$278M
| $67K | ﹤0.01% |
45,900
+32,600
| +245% | +$50.6K |
2026 Q1
1 quarter
|
|
6099
CALL
Xunlei
XNET
$245M
| $66K | ﹤0.01% |
11,800
-7,800
| -40% | -$45K |
2026 Q1
1 quarter
|
|
6100
CALL
Baozun
BZUN
$207M
| $65.9K | ﹤0.01% |
23,300
-13,800
| -37% | -$37.2K |
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.