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 | |
|---|---|---|---|---|---|---|
2701
PUT
CDW
CDW
$19.1B
| $2.78M | ﹤0.01% |
19,800
+7,900
| +66% | +$992K |
|
2702
CALL
Herc Holdings
HRI
$4.71B
| $2.78M | ﹤0.01% |
19,400
+10,000
| +106% | +$1.29M |
|
2703
CALL
NOV
NOV
$7.63B
| $2.78M | ﹤0.01% |
149,600
-19,000
| -11% | -$379K |
|
2704
CALL
Biohaven
BHVN
$2.37B
| $2.77M | ﹤0.01% |
186,200
+87,400
| +88% | +$941K |
|
2705
PUT
Scotiabank
BNS
$114B
| $2.77M | ﹤0.01% |
31,900
+1,300
| +4% | +$102K |
|
2706
Zebra Technologies
ZBRA
$17.2B
| $2.77M | ﹤0.01% |
+10,515
| New | +$2.47M |
|
2707
CALL
CEVA Inc
CEVA
$759M
| $2.76M | ﹤0.01% |
+58,600
| New | +$2.07M |
|
|
P
2708
Everpure Inc
P
$33.1B
| $2.76M | ﹤0.01% |
35,007
+9,391
| +37% | +$688K |
|
2709
CALL
A10 Networks
ATEN
$1.79B
| $2.76M | ﹤0.01% |
73,800
+65,000
| +739% | +$1.89M |
|
|
Q
2710
Qnity Electronics Inc
Q
$25.2B
| $2.75M | ﹤0.01% |
16,859
-22,871
| -58% | -$3.37M |
|
2711
PUT
Enpro
NPO
$6.29B
| $2.75M | ﹤0.01% |
+7,300
| New | +$2.27M |
|
2712
SiTime
SITM
$18.4B
| $2.75M | ﹤0.01% |
+3,687
| New | +$2.32M |
|
2713
CALL
Power Integrations
POWI
$2.82B
| $2.75M | ﹤0.01% |
32,800
+21,200
| +183% | +$1.53M |
|
2714
State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF
SPYX
$2.86B
| $2.74M | ﹤0.01% |
44,848
+11,825
| +36% | +$702K |
|
2715
PUT
Navios Maritime Partners
NMM
$2.62B
| $2.74M | ﹤0.01% |
39,100
+4,700
| +14% | +$336K |
|
2716
CALL
ARK Web x.0 ETF
ARKW
$1.86B
| $2.74M | ﹤0.01% |
18,900
+1,700
| +10% | +$238K |
|
2717
PUT
Impinj
PI
$5.27B
| $2.74M | ﹤0.01% |
19,100
-100
| -0.5% | -$13K |
|
2718
CALL
ProShares UltraShort S&P500
SDS
$385M
| $2.74M | ﹤0.01% |
48,100
-11,900
| -20% | -$727K |
|
2719
PUT
Ares Capital
ARCC
$14.4B
| $2.74M | ﹤0.01% |
147,600
-40,100
| -21% | -$749K |
|
2720
PUT
CoreCivic
CXW
$3.43B
| $2.73M | ﹤0.01% |
89,700
+57,800
| +181% | +$1.31M |
|
2721
BioNTech
BNTX
$26.1B
| $2.72M | ﹤0.01% |
29,282
+1,711
| +6% | +$161K |
|
|
TGB
2722
CALL
Trekor Metals
TGB
$3.09B
| $2.72M | ﹤0.01% |
395,300
+111,100
| +39% | +$794K |
|
2723
Papa John's
PZZA
$747M
| $2.72M | ﹤0.01% |
+73,949
| New | +$2.55M |
|
|
TE
2724
T1 Energy
TE
$1.35B
| $2.72M | ﹤0.01% |
286,805
+224,291
| +359% | +$1.59M |
|
2725
Compass
COMP
$8.54B
| $2.72M | ﹤0.01% |
220,357
+192,913
| +703% | +$1.61M |
|
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.