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 | |
|---|---|---|---|---|---|---|
6026
CALL
Vera Bradley
VRA
$95.3M
| $85.2K | ﹤0.01% |
21,900
+5,600
| +34% | +$20.7K |
|
6027
PUT
Arhaus
ARHS
$1.24B
| $85K | ﹤0.01% |
+10,100
| New | +$70.1K |
|
6028
Vaalco Energy
EGY
$631M
| $84.9K | ﹤0.01% |
+16,707
| New | +$96.3K |
|
|
KDK
6029
PUT
Kodiak AI
KDK
$766M
| $84.8K | ﹤0.01% |
16,700
-8,700
| -34% | -$65.1K |
|
|
FWDI
6030
PUT
Forward Industries Inc
FWDI
$466M
| $84.4K | ﹤0.01% |
+20,000
| New | +$89.2K |
|
6031
PUT
Aemetis
AMTX
$132M
| $84.3K | ﹤0.01% |
51,400
+16,800
| +49% | +$41.1K |
|
6032
CALL
FerroAtlántica
GSM
$873M
| $84.3K | ﹤0.01% |
26,500
-9,300
| -26% | -$38.5K |
|
6033
PUT
Marqeta
MQ
$1.73B
| $83.6K | ﹤0.01% |
5,150
-875
| -15% | -$14.2K |
|
6034
PUT
Pulmonx
LUNG
$94.9M
| $83.6K | ﹤0.01% |
+64,300
| New | +$88.6K |
|
|
BZUN
6035
PUT
Baozun
BZUN
$167M
| $83.5K | ﹤0.01% |
29,500
+3,900
| +15% | +$10.5K |
|
6036
CALL
Exagen
XGN
$184M
| $83.2K | ﹤0.01% |
+17,900
| New | +$67.4K |
|
|
STEX
6037
CALL
Streamex Corp
STEX
$83.3M
| $82.6K | ﹤0.01% |
97,200
+83,000
| +585% | +$85.9K |
|
6038
PUT
Sprinklr
CXM
$1.37B
| $82.6K | ﹤0.01% |
+16,000
| New | +$85K |
|
|
AGEN
6039
CALL
Agenus
AGEN
$371M
| $82.3K | ﹤0.01% |
26,900
+3,500
| +15% | +$12.5K |
|
|
GLO
6040
Clough Global Opportunities Fund
GLO
$242M
| $82.2K | ﹤0.01% |
+13,436
| New | +$79.1K |
|
6041
PUT
Comtech Telecommunications
CMTL
$46.7M
| $81.9K | ﹤0.01% |
39,000
+14,400
| +59% | +$55.4K |
|
6042
Acacia Research
ACTG
$443M
| $81.8K | ﹤0.01% |
17,544
-4,076
| -19% | -$19.6K |
|
6043
CALL
1-800-Flowers.com
FLWS
$239M
| $81.4K | ﹤0.01% |
23,400
+300
| +1% | +$1.18K |
|
|
OPTU
6044
Optimum Communications Inc
OPTU
$401M
| $80.9K | ﹤0.01% |
+55,803
| New | +$69.4K |
|
6045
Tilray
TLRY
$619M
| $80.8K | ﹤0.01% |
+18,004
| New | +$103K |
|
6046
Full House Resorts
FLL
$75.9M
| $80.4K | ﹤0.01% |
+28,824
| New | +$76.2K |
|
6047
PUT
Byrna Technologies
BYRN
$86.1M
| $79.2K | ﹤0.01% |
+11,800
| New | +$72.5K |
|
6048
CALL
Gran Tierra Energy
GTE
$357M
| $78.8K | ﹤0.01% |
12,600
-12,900
| -51% | -$105K |
|
6049
PUT
The Honest Company
HNST
$638M
| $77.6K | ﹤0.01% |
21,200
-40,900
| -66% | -$138K |
|
6050
PUT
BuzzFeed
BZFD
$90.8M
| $77.4K | ﹤0.01% |
53,000
+41,200
| +349% | +$47.4K |
|
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.