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 | |
|---|---|---|---|---|---|---|
1001
PUT
GlobalFoundries
GFS
$24.8B
| $22M | 0.01% |
267,500
+197,800
| +284% | +$13.8M |
|
1002
CALL
Rockwell Automation
ROK
$48.2B
| $22M | 0.01% |
44,400
-14,300
| -24% | -$6.22M |
|
1003
PUT
Nextpower Inc. Common Stock
NXT
$12.8B
| $21.9M | 0.01% |
184,200
+8,900
| +5% | +$1.1M |
|
1004
CALL
CarMax
KMX
$8.98B
| $21.9M | 0.01% |
414,000
-26,400
| -6% | -$1.15M |
|
1005
CALL
Axcelis
ACLS
$3.55B
| $21.8M | 0.01% |
115,300
+92,900
| +415% | +$13.8M |
|
1006
PUT
Wolfspeed
WOLF
$1.47B
| $21.8M | 0.01% |
452,500
+386,500
| +586% | +$16.8M |
|
1007
CALL
Ondas Inc
ONDS
$4.35B
| $21.8M | 0.01% |
2,646,000
-346,300
| -12% | -$3.42M |
|
1008
CALL
Burlington
BURL
$16.7B
| $21.8M | 0.01% |
68,800
+36,800
| +115% | +$11.9M |
|
|
QXO
1009
CALL
QXO Inc
QXO
$13.9B
| $21.8M | 0.01% |
1,260,800
+757,800
| +151% | +$14.1M |
|
1010
PUT
Williams-Sonoma
WSM
$26.8B
| $21.7M | 0.01% |
93,000
+44,300
| +91% | +$8.78M |
|
1011
CALL
Tapestry
TPR
$24.4B
| $21.7M | 0.01% |
148,000
+33,500
| +29% | +$4.8M |
|
1012
Citigroup
C
$231B
| $21.7M | 0.01% |
+154,714
| New | +$20.1M |
|
1013
PUT
Carrier Global
CARR
$49.2B
| $21.6M | 0.01% |
294,700
+174,300
| +145% | +$11.4M |
|
1014
PUT
US Bancorp Series B Preferred Stock
USB.PRH
$727M
| $21.6M | 0.01% |
357,400
-67,200
| -16% | -$1.26M |
|
1015
PUT
Gilead Sciences
GILD
$187B
| $21.5M | 0.01% |
170,300
+28,000
| +20% | +$3.69M |
|
1016
PUT
Kroger
KR
$35.9B
| $21.5M | 0.01% |
387,400
+61,800
| +19% | +$4.03M |
|
1017
PUT
GE HealthCare
GEHC
$31.1B
| $21.5M | 0.01% |
335,500
+209,000
| +165% | +$13.7M |
|
|
PENG
1018
PUT
Penguin Solutions Inc
PENG
$2.65B
| $21.5M | 0.01% |
282,400
+271,700
| +2,539% | +$12.4M |
|
1019
CALL
Samsara
IOT
$23.4B
| $21.4M | 0.01% |
659,300
+176,300
| +37% | +$5.46M |
|
1020
PUT
Shell
SHEL
$266B
| $21.4M | 0.01% |
275,500
+66,900
| +32% | +$5.78M |
|
1021
CALL
nVent Electric
NVT
$25.3B
| $21.3M | 0.01% |
125,700
+4,800
| +4% | +$748K |
|
1022
Netflix
NFLX
$326B
| $21.3M | 0.01% |
+298,471
| New | +$26.3M |
|
1023
PUT
Abercrombie & Fitch
ANF
$6.65B
| $21.3M | 0.01% |
236,600
+93,600
| +65% | +$7.94M |
|
1024
CALL
Opendoor
OPEN
$3.06B
| $21.3M | 0.01% |
4,608,200
+201,800
| +5% | +$966K |
|
1025
PUT
Stryker
SYK
$116B
| $21.2M | 0.01% |
67,300
+20,700
| +44% | +$6.52M |
|
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.