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 | |
|---|---|---|---|---|---|---|---|
276
CALL
Applied Optoelectronics
AAOI
$5.73B
| $152M | 0.04% |
1,028,300
+113,100
| +12% | +$18.4M |
2024 Q1
9 quarters
|
|
277
PUT
Intuit
INTU
$91.8B
| $152M | 0.04% |
583,500
+206,200
| +55% | +$71.8M |
2019 Q2
28 quarters
|
|
278
PUT
TransDigm Group
TDG
$61.1B
| $152M | 0.04% |
114,300
+107,400
| +1,557% | +$132M |
2025 Q2
4 quarters
|
|
279
CALL
State Street Health Care Select Sector SPDR ETF
XLV
$46.6B
| $152M | 0.04% |
958,000
+564,500
| +143% | +$84M |
2018 Q4
30 quarters
|
|
280
PUT
Royal Caribbean
RCL
$73.9B
| $152M | 0.04% |
478,200
+11,300
| +2% | +$3.16M |
2019 Q4
26 quarters
|
|
|
SCIU
281
CALL
DELISTED
Global X Scientific Beta US ETF
SCIU
| $151M | 0.04% |
2,180,500
+762,900
| +54% | +$53M |
2024 Q1
9 quarters
|
|
282
CALL
Comfort Systems
FIX
$40.9B
| $150M | 0.04% |
75,800
+8,000
| +12% | +$14.5M |
2025 Q1
5 quarters
|
|
283
CALL
Core Scientific
CORZ
$4.21B
| $150M | 0.04% |
5,851,600
+2,830,500
| +94% | +$66.6M |
2024 Q2
8 quarters
|
|
284
CALL
RTX Corp
RTX
$258B
| $149M | 0.04% |
784,300
+32,800
| +4% | +$6.02M |
2020 Q2
24 quarters
|
|
285
CALL
Wells Fargo
WFC
$247B
| $149M | 0.04% |
1,797,800
-255,600
| -12% | -$20.5M |
2018 Q4
30 quarters
|
|
286
PUT
State Street Financial Select Sector SPDR ETF
XLF
$51.9B
| $148M | 0.04% |
2,769,600
-453,700
| -14% | -$23.6M |
2018 Q4
30 quarters
|
|
|
287
PUT
Applied Optoelectronics
AAOI
$5.73B
| $148M | 0.04% |
1,001,400
+265,900
| +36% | +$43.2M |
2024 Q1
9 quarters
|
|
288
PUT
Chipotle Mexican Grill
CMG
$34.8B
| $148M | 0.04% |
4,341,500
+2,117,700
| +95% | +$69.2M |
2018 Q4
30 quarters
|
|
289
Intel
INTC
$460B
| $147M | 0.04% |
1,054,100
+313,249
| +42% | +$31.7M |
2024 Q4
6 quarters
|
|
290
PUT
Circle Internet Group
CRCL
$21.8B
| $146M | 0.04% |
2,338,700
+350,200
| +18% | +$34.1M |
2025 Q4
2 quarters
|
|
|
291
PUT
Wells Fargo
WFC
$247B
| $146M | 0.03% |
1,770,100
+169,400
| +11% | +$13.6M |
2018 Q4
30 quarters
|
|
292
PUT
Direxion Daily META Bear 1X ETF
METD
$16.2M
| $146M | 0.03% |
1,484,100
+799,700
| +117% | +$13.1M |
2024 Q2
8 quarters
|
|
293
CALL
Celestica
CLS
$32.8B
| $144M | 0.03% |
395,700
+25,800
| +7% | +$9.7M |
2024 Q1
9 quarters
|
|
294
PUT
AbbVie
ABBV
$505B
| $144M | 0.03% |
571,500
+184,400
| +48% | +$39.7M |
2018 Q4
30 quarters
|
|
295
CALL
DigitalOcean
DOCN
$11B
| $142M | 0.03% |
902,900
+341,300
| +61% | +$46.2M |
2024 Q1
9 quarters
|
|
296
CALL
Occidental Petroleum
OXY
$64.1B
| $142M | 0.03% |
2,919,100
-295,700
| -9% | -$16.8M |
2018 Q4
30 quarters
|
|
297
PUT
Quanta Services
PWR
$82.2B
| $140M | 0.03% |
194,600
-70,600
| -27% | -$48.3M |
2023 Q4
10 quarters
|
|
298
PUT
United Parcel Service
UPS
$86B
| $139M | 0.03% |
1,289,900
+397,600
| +45% | +$41.3M |
2018 Q4
30 quarters
|
|
299
PUT
Freeport-McMoran
FCX
$93.6B
| $138M | 0.03% |
2,201,100
+341,900
| +18% | +$22M |
2018 Q4
30 quarters
|
|
300
CALL
Hut 8
HUT
$7.55B
| $138M | 0.03% |
1,197,200
+286,000
| +31% | +$27.7M |
2023 Q4
10 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.