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 | |
|---|---|---|---|---|---|---|
2626
Kulicke & Soffa
KLIC
$4.27B
| $3.04M | ﹤0.01% |
22,764
+16,214
| +248% | +$1.59M |
|
|
OMDA
2627
CALL
Omada Health Inc
OMDA
$1.39B
| $3.04M | ﹤0.01% |
138,700
+33,300
| +32% | +$532K |
|
2628
PUT
Vanguard World Funds Extended Duration ETF
EDV
$3.5B
| $3.03M | ﹤0.01% |
46,500
+29,400
| +172% | +$1.88M |
|
2629
PUT
GXO Logistics
GXO
$5.54B
| $3.02M | ﹤0.01% |
59,600
+18,500
| +45% | +$958K |
|
2630
PUT
ZIM Integrated Shipping Services
ZIM
$3.44B
| $3.02M | ﹤0.01% |
116,200
-11,500
| -9% | -$297K |
|
2631
PUT
Roper Technologies
ROP
$40.3B
| $3.01M | ﹤0.01% |
8,900
-5,600
| -39% | -$1.91M |
|
2632
UBS Group
UBS
$170B
| $3.01M | ﹤0.01% |
60,720
-6,889
| -10% | -$314K |
|
2633
Digital Realty Trust
DLR
$69.9B
| $3.01M | ﹤0.01% |
+16,753
| New | +$3.21M |
|
2634
PUT
Ollie's Bargain Outlet
OLLI
$4.55B
| $3.01M | ﹤0.01% |
39,100
+33,000
| +541% | +$2.75M |
|
2635
CALL
TransAlta
TAC
$3.78B
| $3M | ﹤0.01% |
217,200
-3,600
| -2% | -$47.5K |
|
2636
PUT
Eastman Chemical
EMN
$8.14B
| $3M | ﹤0.01% |
44,800
-400
| -0.9% | -$29.3K |
|
2637
CALL
Scotiabank
BNS
$114B
| $3M | ﹤0.01% |
34,500
-13,200
| -28% | -$1.04M |
|
2638
CALL
Olin
OLN
$1.98B
| $2.99M | ﹤0.01% |
151,000
-39,900
| -21% | -$1.04M |
|
2639
CALL
Li Auto
LI
$12.1B
| $2.98M | ﹤0.01% |
254,200
-685,700
| -73% | -$11.2M |
|
2640
PUT
Corcept Therapeutics
CORT
$12.1B
| $2.98M | ﹤0.01% |
34,300
+19,600
| +133% | +$1.18M |
|
2641
PUT
Jackson Financial
JXN
$9.52B
| $2.98M | ﹤0.01% |
29,100
+9,200
| +46% | +$997K |
|
2642
PUT
Everspin Technologies
MRAM
$399M
| $2.98M | ﹤0.01% |
+123,100
| New | +$2.76M |
|
2643
PUT
Herc Holdings
HRI
$4.71B
| $2.97M | ﹤0.01% |
20,700
+8,300
| +67% | +$1.07M |
|
2644
CALL
The Ensign Group
ENSG
$9.95B
| $2.97M | ﹤0.01% |
18,500
+13,700
| +285% | +$2.42M |
|
2645
PUT
2x Long VIX Futures ETF
UVIX
$193M
| $2.96M | ﹤0.01% |
47,870
-2,650
| -5% | -$263K |
|
2646
abrdn Physical Silver Shares ETF
SIVR
$4.48B
| $2.96M | ﹤0.01% |
52,609
+28,559
| +119% | +$1.99M |
|
|
VISN
2647
PUT
Vistance Networks Inc
VISN
$1.48B
| $2.96M | ﹤0.01% |
231,300
+34,900
| +18% | +$493K |
|
|
LB
2648
CALL
LandBridge Co
LB
$2.46B
| $2.96M | ﹤0.01% |
37,300
+13,800
| +59% | +$948K |
|
2649
CALL
Under Armour
UAA
$2.26B
| $2.95M | ﹤0.01% |
461,700
+209,900
| +83% | +$1.24M |
|
2650
CALL
Thomson Reuters
TRI
$45.8B
| $2.95M | ﹤0.01% |
36,100
+10,698
| +42% | +$934K |
|
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.