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 | |
|---|---|---|---|---|---|---|---|
4326
Silvercorp Metals
SVM
$1.87B
| $660K | ﹤0.01% |
65,317
-50,447
| -44% | -$609K |
2025 Q4
2 quarters
|
|
4327
TORM
TRMD
$4.1B
| $659K | ﹤0.01% |
25,275
+7,196
| +40% | +$218K |
2026 Q1
1 quarter
|
|
4328
CALL
Cheniere Energy
CQP
$32B
| $658K | ﹤0.01% |
10,800
+4,000
| +59% | +$251K |
2026 Q1
1 quarter
|
|
4329
Medline Inc
MDLN
$29.9B
| $657K | ﹤0.01% |
+16,668
| New | +$672K |
2026 Q2
0 quarters
|
|
4330
PubMatic
PUBM
$785M
| $657K | ﹤0.01% |
50,081
+13,239
| +36% | +$138K |
2026 Q1
1 quarter
|
|
4331
Oceaneering
OII
$3.91B
| $657K | ﹤0.01% |
+16,202
| New | +$611K |
2026 Q2
0 quarters
|
|
4332
PUT
Rimini Street
RMNI
$374M
| $656K | ﹤0.01% |
+154,000
| New | +$584K |
2026 Q2
0 quarters
|
|
4333
Vital Farms
VITL
$392M
| $655K | ﹤0.01% |
56,338
+29,774
| +112% | +$332K |
2025 Q3
3 quarters
|
|
4334
PUT
Borr Drilling
BORR
$1.36B
| $655K | ﹤0.01% |
158,600
+143,900
| +979% | +$777K |
2026 Q1
1 quarter
|
|
4335
CALL
Idaho Strategic Resources
IDR
$304M
| $655K | ﹤0.01% |
20,000
-2,600
| -12% | -$101K |
2025 Q2
4 quarters
|
|
4336
PUT
iRhythm Holdings
IRTC
$4B
| $654K | ﹤0.01% |
5,500
+1,500
| +38% | +$174K |
2026 Q1
1 quarter
|
|
4337
CALL
Element Solutions
ESI
$8.09B
| $654K | ﹤0.01% |
13,700
+2,400
| +21% | +$100K |
2026 Q1
1 quarter
|
|
4338
Otis Worldwide
OTIS
$28.6B
| $654K | ﹤0.01% |
9,136
+3,795
| +71% | +$283K |
2026 Q1
1 quarter
|
|
4339
CALL
Alto Ingredients
ALTO
$280M
| $654K | ﹤0.01% |
114,700
+6,200
| +6% | +$31.7K |
2026 Q1
1 quarter
|
|
4340
PUT
Willis Towers Watson
WTW
$30.2B
| $653K | ﹤0.01% |
2,500
+800
| +47% | +$214K |
2026 Q1
1 quarter
|
|
4341
T-Rex 2X Long NFLX Daily Target ETF
NFLU
$23M
| $653K | ﹤0.01% |
+39,594
| New | +$1.04M |
2026 Q2
0 quarters
|
|
4342
T-Rex 2X Inverse Tesla Daily Target ETF
TSLZ
$23.9M
| $653K | ﹤0.01% |
61,312
+13,202
| +27% | +$174K |
2025 Q4
2 quarters
|
|
4343
Sprott Silver Miners & Physical Silver ETF
SLVR
$592M
| $653K | ﹤0.01% |
13,010
+2,670
| +26% | +$158K |
2025 Q4
2 quarters
|
|
4344
PUT
WillScot Mobile Mini Holdings
WSC
$2.95B
| $652K | ﹤0.01% |
22,600
+6,100
| +37% | +$148K |
2024 Q3
7 quarters
|
|
4345
Corgi Lithography & Semiconductor Photonics ETF
EUV
$369M
| $651K | ﹤0.01% |
+20,357
| New | +$570K |
2026 Q2
0 quarters
|
|
4346
PUT
Almonty Industries
ALM
$2.56B
| $651K | ﹤0.01% |
+39,300
| New | +$750K |
2026 Q2
0 quarters
|
|
4347
CALL
Intapp
INTA
$3.68B
| $650K | ﹤0.01% |
25,800
+3,500
| +16% | +$79.8K |
2025 Q3
3 quarters
|
|
4348
PUT
Kopin
KOPN
$610M
| $650K | ﹤0.01% |
145,100
+92,300
| +175% | +$402K |
2026 Q1
1 quarter
|
|
4349
The Gap Inc
GAP
$7.84B
| $650K | ﹤0.01% |
+34,787
| New | +$802K |
2026 Q2
0 quarters
|
|
4350
PUT
Richardson Electronics
RELL
$263M
| $648K | ﹤0.01% |
+34,100
| New | +$533K |
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.