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 | |
|---|---|---|---|---|---|---|
2501
PUT
Diageo
DEO
$50.2B
| $3.46M | ﹤0.01% |
43,100
-56,800
| -57% | -$4.59M |
|
|
JMIA
2502
CALL
Jumia Technologies
JMIA
$962M
| $3.46M | ﹤0.01% |
490,600
-2,800
| -0.6% | -$19.9K |
|
2503
PUT
Digital Turbine
APPS
$1.32B
| $3.45M | ﹤0.01% |
267,600
+161,200
| +152% | +$964K |
|
2504
CALL
DNOW Inc
DNOW
$2.87B
| $3.45M | ﹤0.01% |
+265,800
| New | +$3.45M |
|
2505
CALL
Equinox Gold
EQX
$14.9B
| $3.44M | ﹤0.01% |
353,800
-100,900
| -22% | -$1.3M |
|
2506
Innodata
INOD
$1.88B
| $3.44M | ﹤0.01% |
+45,483
| New | +$3.34M |
|
2507
PUT
Concentrix
CNXC
$1.97B
| $3.44M | ﹤0.01% |
153,400
+107,500
| +234% | +$2.8M |
|
2508
CALL
Becton Dickinson
BDX
$50.9B
| $3.44M | ﹤0.01% |
22,700
-4,100
| -15% | -$613K |
|
2509
PUT
American Eagle Outfitters
AEO
$2.8B
| $3.43M | ﹤0.01% |
199,400
+17,000
| +9% | +$294K |
|
2510
Century Aluminum
CENX
$4.66B
| $3.43M | ﹤0.01% |
74,506
+61,826
| +488% | +$3.72M |
|
2511
CALL
Lithia Motors
LAD
$8.37B
| $3.43M | ﹤0.01% |
11,800
-28,000
| -70% | -$7.96M |
|
2512
PUT
Sanofi
SNY
$106B
| $3.42M | ﹤0.01% |
80,200
+31,100
| +63% | +$1.39M |
|
2513
Xylem
XYL
$25.2B
| $3.42M | ﹤0.01% |
28,912
+25,460
| +738% | +$2.94M |
|
2514
ProShares UltraShort QQQ
QID
$267M
| $3.41M | ﹤0.01% |
251,553
+150,038
| +148% | +$2.42M |
|
2515
PUT
NextDecade
NEXT
$1.97B
| $3.41M | ﹤0.01% |
451,900
+23,300
| +5% | +$184K |
|
2516
PUT
Kodiak Gas Services
KGS
$6.24B
| $3.4M | ﹤0.01% |
45,300
+39,900
| +739% | +$2.71M |
|
2517
CleanSpark
CLSK
$3.21B
| $3.4M | ﹤0.01% |
233,818
-167,918
| -42% | -$2.37M |
|
2518
CALL
Spire Global
SPIR
$483M
| $3.4M | ﹤0.01% |
182,600
+109,700
| +150% | +$2.04M |
|
2519
PUT
Ameriprise Financial
AMP
$49.6B
| $3.39M | ﹤0.01% |
7,400
-4,200
| -36% | -$1.92M |
|
2520
PUT
Raymond James Financial
RJF
$34.4B
| $3.39M | ﹤0.01% |
22,300
+11,000
| +97% | +$1.67M |
|
2521
Grab
GRAB
$14B
| $3.39M | ﹤0.01% |
899,131
+640,831
| +248% | +$2.33M |
|
2522
CALL
ASP Isotopes
ASPI
$610M
| $3.38M | ﹤0.01% |
544,000
-31,500
| -5% | -$185K |
|
2523
CALL
Factset
FDS
$10.8B
| $3.38M | ﹤0.01% |
14,700
-15,400
| -51% | -$3.54M |
|
|
UCTT
2524
Ultra Clean Holdings
UCTT
$3.14B
| $3.38M | ﹤0.01% |
+23,709
| New | +$2.09M |
|
2525
CALL
BigBear.ai
BBAI
$1.43B
| $3.37M | ﹤0.01% |
919,300
-264,800
| -22% | -$1.06M |
|
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.