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 | |
|---|---|---|---|---|---|---|
3751
CALL
Procept Biorobotics
PRCT
$1.3B
| $1.09M | ﹤0.01% |
48,400
+9,400
| +24% | +$235K |
|
3752
PUT
3D Systems Corp
DDD
$575M
| $1.09M | ﹤0.01% |
361,200
+118,200
| +49% | +$322K |
|
3753
CALL
Denison Mines
DNN
$3.1B
| $1.09M | ﹤0.01% |
356,400
+11,800
| +3% | +$41.1K |
|
3754
CALL
Tanger
SKT
$4.29B
| $1.09M | ﹤0.01% |
27,600
+13,900
| +101% | +$515K |
|
|
NTSK
3755
Netskope Inc
NTSK
$5.7B
| $1.09M | ﹤0.01% |
99,558
+49,000
| +97% | +$499K |
|
3756
CALL
Teradata
TDC
$2.61B
| $1.09M | ﹤0.01% |
31,400
+10,000
| +47% | +$304K |
|
|
TPC
3757
CALL
Tutor Perini Cor
TPC
$4.64B
| $1.09M | ﹤0.01% |
13,100
-8,600
| -40% | -$692K |
|
3758
Tidewater
TDW
$4.69B
| $1.08M | ﹤0.01% |
+16,282
| New | +$1.29M |
|
|
ALMU
3759
PUT
Aeluma Inc
ALMU
$237M
| $1.08M | ﹤0.01% |
49,100
+21,600
| +79% | +$462K |
|
|
PPL
3760
PUT
PPL Corp
PPL
$26.4B
| $1.08M | ﹤0.01% |
29,800
-6,600
| -18% | -$244K |
|
3761
Array Technologies
ARRY
$708M
| $1.08M | ﹤0.01% |
+146,128
| New | +$1.16M |
|
3762
CALL
Newell Brands
NWL
$2.6B
| $1.08M | ﹤0.01% |
176,200
+26,700
| +18% | +$113K |
|
3763
CALL
NGL Energy Partners
NGL
$2.22B
| $1.08M | ﹤0.01% |
67,900
+14,100
| +26% | +$219K |
|
3764
CALL
News Corp Class B
NWS
$18.2B
| $1.08M | ﹤0.01% |
38,500
+500
| +1% | +$14.9K |
|
3765
CALL
Essex Property Trust
ESS
$17.9B
| $1.08M | ﹤0.01% |
3,700
+900
| +32% | +$242K |
|
3766
PUT
Mercury Insurance
MCY
$5.79B
| $1.08M | ﹤0.01% |
10,100
+3,200
| +46% | +$315K |
|
3767
CALL
ArcBest
ARCB
$3.15B
| $1.08M | ﹤0.01% |
7,500
+1,200
| +19% | +$156K |
|
3768
PUT
Hyliion Holdings
HYLN
$659M
| $1.08M | ﹤0.01% |
206,600
+126,900
| +159% | +$528K |
|
|
OPRA
3769
PUT
Opera Ltd
OPRA
$1.67B
| $1.07M | ﹤0.01% |
54,200
-54,800
| -50% | -$968K |
|
3770
CALL
Sonos
SONO
$1.82B
| $1.07M | ﹤0.01% |
79,400
+6,200
| +8% | +$90.7K |
|
|
DPRO
3771
CALL
Draganfly
DPRO
$227M
| $1.07M | ﹤0.01% |
198,200
+21,200
| +12% | +$123K |
|
3772
CALL
VSE Corp
VSEC
$5.72B
| $1.07M | ﹤0.01% |
+4,700
| New | +$903K |
|
3773
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$248M
| $1.07M | ﹤0.01% |
+34,947
| New | +$1.28M |
|
3774
PUT
Loar Holdings
LOAR
$6.36B
| $1.07M | ﹤0.01% |
13,300
+6,000
| +82% | +$382K |
|
3775
Roundhill Generative AI & Technology ETF
CHAT
$1.87B
| $1.07M | ﹤0.01% |
+10,861
| New | +$929K |
|
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.