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 | |
|---|---|---|---|---|---|---|
|
SOLS
2676
PUT
Solstice Advanced Materials
SOLS
$10.1B
| $2.84M | ﹤0.01% |
32,100
-27,500
| -46% | -$2.27M |
|
2677
CALL
Universal Health Services
UHS
$10B
| $2.84M | ﹤0.01% |
19,100
+14,400
| +306% | +$2.34M |
|
|
EXK
2678
CALL
Endeavour Silver
EXK
$3.29B
| $2.84M | ﹤0.01% |
342,900
-129,200
| -27% | -$1.2M |
|
|
TTAN
2679
ServiceTitan Inc
TTAN
$8.39B
| $2.84M | ﹤0.01% |
40,137
+24,114
| +150% | +$1.55M |
|
2680
CALL
Navios Maritime Partners
NMM
$2.62B
| $2.84M | ﹤0.01% |
40,500
-9,000
| -18% | -$644K |
|
2681
Viking Holdings
VIK
$38.3B
| $2.84M | ﹤0.01% |
27,111
-15,656
| -37% | -$1.35M |
|
2682
PUT
Globalstar
GSAT
$10.7B
| $2.84M | ﹤0.01% |
34,900
-9,800
| -22% | -$789K |
|
2683
CALL
IAMGOLD
IAG
$11.7B
| $2.83M | ﹤0.01% |
178,900
+17,100
| +11% | +$299K |
|
2684
PUT
Exelixis
EXEL
$14.6B
| $2.83M | ﹤0.01% |
52,000
+7,600
| +17% | +$370K |
|
2685
PUT
Ascendis Pharma A/S
ASND
$17.7B
| $2.83M | ﹤0.01% |
10,600
+1,300
| +14% | +$304K |
|
2686
PUT
United States Copper Index Fund
CPER
$747M
| $2.83M | ﹤0.01% |
74,900
+3,800
| +5% | +$143K |
|
2687
CALL
Wheels Up
UP
$158M
| $2.83M | ﹤0.01% |
315,000
+306,185
| +3,473% | +$2.34M |
|
2688
CALL
Millicom
TIGO
$15.9B
| $2.82M | ﹤0.01% |
31,100
-3,500
| -10% | -$295K |
|
2689
CALL
Zebra Technologies
ZBRA
$17.2B
| $2.82M | ﹤0.01% |
10,700
-9,200
| -46% | -$2.16M |
|
2690
CALL
Vanguard Global ex-US Real Estate ETF
VNQI
$3.49B
| $2.81M | ﹤0.01% |
47,100
+6,000
| +15% | +$276K |
|
2691
CALL
Lennox International
LII
$13.5B
| $2.81M | ﹤0.01% |
4,900
+2,000
| +69% | +$1.02M |
|
2692
PUT
Archer Aviation
ACHR
$4.4B
| $2.81M | ﹤0.01% |
593,300
-32,500
| -5% | -$189K |
|
|
INFQ
2693
PUT
Infleqtion Inc
INFQ
$2.9B
| $2.8M | ﹤0.01% |
210,500
+142,900
| +211% | +$1.97M |
|
2694
CALL
Principal Financial Group
PFG
$25B
| $2.8M | ﹤0.01% |
26,000
+8,900
| +52% | +$904K |
|
|
XXRP
2695
PUT
Teucrium 2x Long Daily XRP ETF
XXRP
$148M
| $2.8M | ﹤0.01% |
+135,900
| New | +$4.77M |
|
|
LAC
2696
CALL
Lithium Americas
LAC
$1.09B
| $2.79M | ﹤0.01% |
724,900
-35,100
| -5% | -$167K |
|
2697
CALL
Atmos Energy
ATO
$28.3B
| $2.79M | ﹤0.01% |
16,200
+13,200
| +440% | +$2.36M |
|
2698
PUT
Everest Group
EG
$14.6B
| $2.79M | ﹤0.01% |
7,800
-9,100
| -54% | -$3.12M |
|
2699
CALL
Viatris
VTRS
$19.4B
| $2.79M | ﹤0.01% |
175,400
-146,600
| -46% | -$2.27M |
|
2700
CALL
NexGen Energy
NXE
$7.19B
| $2.79M | ﹤0.01% |
296,600
-440,000
| -60% | -$5M |
|
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.