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 | |
|---|---|---|---|---|---|---|---|
4301
PUT
Camping World
CWH
$268M
| $678K | ﹤0.01% |
88,900
+46,700
| +111% | +$338K |
2022 Q4
14 quarters
|
|
4302
iShares MSCI China ETF
MCHI
$5.54B
| $678K | ﹤0.01% |
13,289
-22,255
| -63% | -$1.25M |
2026 Q1
1 quarter
|
|
4303
CALL
QuickLogic
QUIK
$161M
| $677K | ﹤0.01% |
33,900
+21,800
| +180% | +$380K |
2026 Q1
1 quarter
|
|
4304
PUT
Richtech Robotics
RR
$261M
| $677K | ﹤0.01% |
320,800
+87,600
| +38% | +$213K |
2025 Q4
2 quarters
|
|
4305
CALL
Lightbridge
LTBR
$179M
| $677K | ﹤0.01% |
77,000
-8,900
| -10% | -$100K |
2025 Q1
5 quarters
|
|
4306
PUT
Satellogic
SATL
$589M
| $674K | ﹤0.01% |
117,900
-8,700
| -7% | -$63.7K |
2026 Q1
1 quarter
|
|
4307
PUT
Intapp
INTA
$3.68B
| $673K | ﹤0.01% |
26,700
+16,500
| +162% | +$376K |
2026 Q1
1 quarter
|
|
4308
CALL
Northern Dynasty Minerals
NAK
$445M
| $672K | ﹤0.01% |
350,200
-165,900
| -32% | -$333K |
2025 Q3
3 quarters
|
|
4309
Leverage Shares 2X Long PANW Daily ETF
PANG
$10.9M
| $672K | ﹤0.01% |
21,051
+5,432
| +35% | +$85.4K |
2026 Q1
1 quarter
|
|
4310
Nano Nuclear Energy
NNE
$653M
| $671K | ﹤0.01% |
+31,757
| New | +$782K |
2026 Q2
0 quarters
|
|
4311
CALL
Texas Capital Bancshares
TCBI
$4.43B
| $671K | ﹤0.01% |
+6,500
| New | +$652K |
2026 Q2
0 quarters
|
|
4312
BellRing Brands
BRBR
$1.11B
| $669K | ﹤0.01% |
+51,737
| New | +$624K |
2026 Q2
0 quarters
|
|
4313
CALL
Intrepid Potash
IPI
$420M
| $669K | ﹤0.01% |
20,400
-7,900
| -28% | -$301K |
2025 Q4
2 quarters
|
|
4314
CALL
Innventure Inc
INV
$27.5M
| $668K | ﹤0.01% |
131,700
+104,200
| +379% | +$613K |
2026 Q1
1 quarter
|
|
4315
Lincoln Educational Services
LINC
$688M
| $666K | ﹤0.01% |
+13,348
| New | +$604K |
2026 Q2
0 quarters
|
|
4316
PUT
Bloomin' Brands
BLMN
$788M
| $665K | ﹤0.01% |
72,800
+2,500
| +4% | +$18.2K |
2024 Q3
7 quarters
|
|
4317
Defiance Daily Target 2x Long KEEL ETF
KEEX
$283K
| $665K | ﹤0.01% |
+23,676
| New | +$454K |
2026 Q2
0 quarters
|
|
4318
STAAR Surgical
STAA
$1.13B
| $665K | ﹤0.01% |
23,187
+5,077
| +28% | +$141K |
2026 Q1
1 quarter
|
|
4319
National Grid
NGG
$82.3B
| $664K | ﹤0.01% |
+8,018
| New | +$682K |
2026 Q2
0 quarters
|
|
4320
CALL
FedEx Freight
FDXF
$16.5B
| $664K | ﹤0.01% |
+4,400
| New | +$721K |
2026 Q2
0 quarters
|
|
4321
BKV Corp
BKV
$2.23B
| $662K | ﹤0.01% |
+24,205
| New | +$666K |
2026 Q2
0 quarters
|
|
4322
CALL
Penske Automotive Group
PAG
$13.9B
| $662K | ﹤0.01% |
3,700
+200
| +6% | +$33.4K |
2026 Q1
1 quarter
|
|
4323
CALL
Methode Electronics
MEI
$432M
| $662K | ﹤0.01% |
+34,900
| New | +$361K |
2026 Q2
0 quarters
|
|
4324
PUT
TFI International
TFII
$9.25B
| $660K | ﹤0.01% |
+4,600
| New | +$649K |
2026 Q2
0 quarters
|
|
4325
Aeluma Inc
ALMU
$133M
| $660K | ﹤0.01% |
29,895
+14,380
| +93% | +$308K |
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.