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 | |
|---|---|---|---|---|---|---|---|
4576
Leverage Shares 2X Long SNDK Daily ETF
SNDG
$49.9M
| $532K | ﹤0.01% |
+20,178
| New | +$369K |
2026 Q2
0 quarters
|
|
|
QLTB
4577
PUT
DELISTED
ISHARES BAA BA RATED CORP BOND FUND
QLTB
| $531K | ﹤0.01% |
5,500
| – | – |
2026 Q1
1 quarter
|
|
4578
Terrestrial Energy
IMSR
$323M
| $531K | ﹤0.01% |
74,991
+53,834
| +254% | +$398K |
2026 Q1
1 quarter
|
|
4579
Ivanhoe Electric
IE
$1.38B
| $531K | ﹤0.01% |
55,220
-100,142
| -64% | -$1.26M |
2026 Q1
1 quarter
|
|
4580
CALL
3D Systems Corp
DDD
$457M
| $530K | ﹤0.01% |
175,500
-117,300
| -40% | -$320K |
2025 Q3
3 quarters
|
|
4581
CALL
Industrial Logistics Properties Trust
ILPT
$459M
| $529K | ﹤0.01% |
59,600
+46,700
| +362% | +$362K |
2026 Q1
1 quarter
|
|
4582
PUT
Coty
COTY
$2.82B
| $529K | ﹤0.01% |
244,700
+68,900
| +39% | +$149K |
2021 Q3
19 quarters
|
|
4583
PUT
Astronics
ATRO
$2.67B
| $528K | ﹤0.01% |
+6,500
| New | +$444K |
2026 Q2
0 quarters
|
|
4584
CALL
ZTO Express
ZTO
$15B
| $528K | ﹤0.01% |
23,600
-51,100
| -68% | -$1.22M |
2024 Q4
6 quarters
|
|
4585
Rexford Industrial Realty
REXR
$8.19B
| $526K | ﹤0.01% |
15,711
+702
| +5% | +$24.6K |
2025 Q4
2 quarters
|
|
4586
DELISTED
SkyWater Technology
SKYT
| $526K | ﹤0.01% |
+15,111
| New | +$517K |
2026 Q2
0 quarters
|
|
4587
CALL
Woodside Energy
WDS
$45B
| $526K | ﹤0.01% |
27,200
+13,100
| +93% | +$292K |
2025 Q4
2 quarters
|
|
4588
CALL
Manchester United
MANU
$3.49B
| $525K | ﹤0.01% |
22,900
+2,500
| +12% | +$49.5K |
2025 Q4
2 quarters
|
|
4589
Northern Trust
NTRS
$30.3B
| $525K | ﹤0.01% |
+3,020
| New | +$497K |
2026 Q2
0 quarters
|
|
4590
PUT
Caleres
CAL
$446M
| $523K | ﹤0.01% |
42,300
+11,000
| +35% | +$143K |
2024 Q4
6 quarters
|
|
4591
PUT
Church & Dwight Co
CHD
$24.5B
| $523K | ﹤0.01% |
5,400
-13,400
| -71% | -$1.28M |
2025 Q3
3 quarters
|
|
4592
PUT
Bio-Techne
TECH
$11.4B
| $523K | ﹤0.01% |
7,400
-73,000
| -91% | -$3.94M |
2025 Q4
2 quarters
|
|
4593
PUT
T-REX 2X Long SMR Daily Target ETF
SMUP
$2.52M
| $522K | ﹤0.01% |
+12,800
| New | +$125K |
2026 Q2
0 quarters
|
|
4594
CALL
Equity Lifestyle Properties
ELS
$11.8B
| $522K | ﹤0.01% |
+8,100
| New | +$512K |
2026 Q2
0 quarters
|
|
4595
PUT
CMB.TECH NV
CMBT
$5.04B
| $522K | ﹤0.01% |
37,300
-1,000
| -3% | -$14.4K |
2025 Q4
2 quarters
|
|
4596
PUT
Newsmax Inc
NMAX
$1.14B
| $522K | ﹤0.01% |
63,000
+8,300
| +15% | +$59.5K |
2025 Q4
2 quarters
|
|
4597
CALL
Compass Minerals
CMP
$937M
| $520K | ﹤0.01% |
16,700
+6,000
| +56% | +$170K |
2026 Q1
1 quarter
|
|
4598
CALL
Omnicell
OMCL
$1.61B
| $519K | ﹤0.01% |
+12,500
| New | +$504K |
2026 Q2
0 quarters
|
|
4599
Schneider National
SNDR
$5.51B
| $517K | ﹤0.01% |
+14,165
| New | +$462K |
2026 Q2
0 quarters
|
|
4600
Insight Enterprises
NSIT
$4.69B
| $517K | ﹤0.01% |
+4,248
| New | +$388K |
2026 Q2
0 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.