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 | |
|---|---|---|---|---|---|---|
1326
Pan American Silver
PAAS
$21.8B
| $13.3M | ﹤0.01% |
297,944
-113,283
| -28% | -$6.07M |
|
1327
PUT
Rockwell Automation
ROK
$47.6B
| $13.3M | ﹤0.01% |
26,900
-277,300
| -91% | -$121M |
|
1328
CALL
Snap
SNAP
$9.64B
| $13.3M | ﹤0.01% |
2,998,000
+188,400
| +7% | +$1.03M |
|
1329
PUT
Cleveland-Cliffs
CLF
$7.01B
| $13.3M | ﹤0.01% |
1,417,200
+366,400
| +35% | +$4.03M |
|
1330
Quanta Services
PWR
$93.2B
| $13.3M | ﹤0.01% |
18,434
+18,046
| +4,651% | +$12.3M |
|
1331
PUT
Royal Bank of Canada
RY
$294B
| $13.2M | ﹤0.01% |
63,900
-11,300
| -15% | -$2.1M |
|
1332
CALL
NextNav
NN
$2.65B
| $13.2M | ﹤0.01% |
741,700
+188,300
| +34% | +$3.64M |
|
1333
CALL
General Mills
GIS
$21B
| $13.2M | ﹤0.01% |
378,900
-30,400
| -7% | -$1.05M |
|
1334
Atlassian
TEAM
$49.3B
| $13.2M | ﹤0.01% |
169,302
+120,388
| +246% | +$9.85M |
|
1335
CALL
PBF Energy
PBF
$8.93B
| $13.2M | ﹤0.01% |
289,100
+60,700
| +27% | +$2.53M |
|
1336
CALL
YPF Sociedad Anonima ADS
YPF
$20.5B
| $13.1M | ﹤0.01% |
288,200
-655,200
| -69% | -$30.7M |
|
1337
Cognex
CGNX
$10.2B
| $13.1M | ﹤0.01% |
+180,397
| New | +$10.9M |
|
|
FRMI
1338
CALL
Fermi Inc
FRMI
$3.11B
| $13.1M | ﹤0.01% |
1,424,900
+704,600
| +98% | +$4.46M |
|
1339
CALL
Hasbro
HAS
$13.1B
| $13M | ﹤0.01% |
157,700
+81,600
| +107% | +$7.34M |
|
1340
NIO
NIO
$9.67B
| $13M | ﹤0.01% |
2,572,872
+1,405,688
| +120% | +$8.19M |
|
1341
CALL
Williams-Sonoma
WSM
$26.2B
| $13M | ﹤0.01% |
55,800
-32,100
| -37% | -$6.36M |
|
1342
CALL
MKS Inc
MKSI
$16.9B
| $13M | ﹤0.01% |
29,200
+5,300
| +22% | +$1.66M |
|
1343
CALL
Sphere Entertainment
SPHR
$5.14B
| $12.9M | ﹤0.01% |
74,800
-12,500
| -14% | -$1.74M |
|
1344
PUT
Floor & Decor
FND
$5.26B
| $12.9M | ﹤0.01% |
217,900
-1,239,500
| -85% | -$62.7M |
|
1345
CALL
Yum! Brands
YUM
$41.6B
| $12.9M | ﹤0.01% |
80,900
+19,100
| +31% | +$2.96M |
|
1346
PUT
Fastly Inc
FSLY
$3.36B
| $12.9M | ﹤0.01% |
704,000
-251,300
| -26% | -$5.46M |
|
1347
PUT
Hubbell
HUBB
$24.3B
| $12.9M | ﹤0.01% |
24,700
+17,300
| +234% | +$8.74M |
|
1348
PUT
iShares Gold Trust
IAU
$66.3B
| $12.9M | ﹤0.01% |
170,900
-37,500
| -18% | -$3.18M |
|
1349
CALL
Baker Hughes
BKR
$63.2B
| $12.9M | ﹤0.01% |
232,500
-70,600
| -23% | -$4.46M |
|
1350
PUT
Stanley Black & Decker
SWK
$14.6B
| $12.9M | ﹤0.01% |
137,000
-7,300
| -5% | -$572K |
|
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.