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 | |
|---|---|---|---|---|---|---|---|
3501
CALL
Chegg
CHGG
$78M
| $1.33M | ﹤0.01% |
1,319,400
+897,500
| +213% | +$984K |
2026 Q1
1 quarter
|
|
3502
PUT
STAAR Surgical
STAA
$1.13B
| $1.33M | ﹤0.01% |
46,300
+5,300
| +13% | +$147K |
2025 Q4
2 quarters
|
|
3503
PUT
Northern Dynasty Minerals
NAK
$445M
| $1.32M | ﹤0.01% |
689,600
-89,000
| -11% | -$178K |
2025 Q3
3 quarters
|
|
3504
CALL
Enviri
NVRI
$537M
| $1.32M | ﹤0.01% |
60,300
-68,000
| -53% | -$1.36M |
2025 Q4
2 quarters
|
|
3505
CALL
Genius Sports
GENI
$1.69B
| $1.32M | ﹤0.01% |
218,400
+75,500
| +53% | +$391K |
2024 Q3
7 quarters
|
|
3506
CALL
Arteris
AIP
$937M
| $1.32M | ﹤0.01% |
27,200
-90,100
| -77% | -$2.88M |
2025 Q3
3 quarters
|
|
3507
PUT
Mirion Technologies
MIR
$3.69B
| $1.32M | ﹤0.01% |
+73,700
| New | +$1.37M |
2026 Q2
0 quarters
|
|
3508
PUT
Armour Residential REIT
ARR
$1.82B
| $1.32M | ﹤0.01% |
75,700
-17,500
| -19% | -$301K |
2024 Q3
7 quarters
|
|
3509
CALL
Agree Realty
ADC
$8.68B
| $1.32M | ﹤0.01% |
17,400
+8,900
| +105% | +$674K |
2026 Q1
1 quarter
|
|
3510
PUT
Procore
PCOR
$9.6B
| $1.32M | ﹤0.01% |
32,400
+13,000
| +67% | +$643K |
2025 Q3
3 quarters
|
|
3511
CALL
Americold
COLD
$4.13B
| $1.31M | ﹤0.01% |
83,500
+26,300
| +46% | +$361K |
2025 Q4
2 quarters
|
|
3512
CALL
UGI
UGI
$8.26B
| $1.31M | ﹤0.01% |
38,000
+24,300
| +177% | +$859K |
2026 Q1
1 quarter
|
|
3513
PUT
Destiny Tech100
DXYZ
$838M
| $1.31M | ﹤0.01% |
+50,900
| New | +$1.91M |
2026 Q2
0 quarters
|
|
3514
PUT
AES
AES
$10.7B
| $1.31M | ﹤0.01% |
89,400
-1,300
| -1% | -$18.9K |
2024 Q1
9 quarters
|
|
|
MRX
3515
CALL
Marex Group Limited Ordinary Shares
MRX
$5.03B
| $1.31M | ﹤0.01% |
21,500
+14,900
| +226% | +$820K |
2026 Q1
1 quarter
|
|
3516
Archer Daniels Midland
ADM
$38.6B
| $1.31M | ﹤0.01% |
+17,152
| New | +$1.31M |
2026 Q2
0 quarters
|
|
3517
PUT
Terex
TEX
$5.86B
| $1.31M | ﹤0.01% |
18,100
-10,200
| -36% | -$638K |
2023 Q4
10 quarters
|
|
3518
PUT
Asbury Automotive
ABG
$3.1B
| $1.31M | ﹤0.01% |
+6,500
| New | +$1.28M |
2026 Q2
0 quarters
|
|
3519
Ciena
CIEN
$45.4B
| $1.31M | ﹤0.01% |
+2,663
| New | +$1.36M |
2026 Q2
0 quarters
|
|
3520
CALL
ADMA Biologics
ADMA
$2.39B
| $1.31M | ﹤0.01% |
156,000
-31,300
| -17% | -$285K |
2024 Q4
6 quarters
|
|
3521
Leverage Shares 2X Long ARM Daily ETF
ARMG
$55.4M
| $1.31M | ﹤0.01% |
+33,115
| New | +$920K |
2026 Q2
0 quarters
|
|
3522
CALL
Manulife Financial
MFC
$73.2B
| $1.3M | ﹤0.01% |
32,200
+12,800
| +66% | +$495K |
2026 Q1
1 quarter
|
|
3523
Xometry
XMTR
$5.09B
| $1.3M | ﹤0.01% |
+13,513
| New | +$966K |
2026 Q2
0 quarters
|
|
3524
CALL
Valley National Bancorp
VLY
$7.77B
| $1.3M | ﹤0.01% |
89,000
+1,700
| +2% | +$23.1K |
2025 Q1
5 quarters
|
|
3525
Ashland
ASH
$3.34B
| $1.3M | ﹤0.01% |
19,787
+6,676
| +51% | +$388K |
2025 Q4
2 quarters
|
|
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.