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 | |
|---|---|---|---|---|---|---|
5776
Black Stone Minerals
BSM
$3.12B
| $166K | ﹤0.01% |
+11,902
| New | +$166K |
|
5777
Sundial Growers
SNDL
$358M
| $166K | ﹤0.01% |
123,101
-42,231
| -26% | -$60.5K |
|
5778
CALL
Digimarc Corp
DMRC
$119M
| $166K | ﹤0.01% |
+20,200
| New | +$190K |
|
5779
CALL
Similarweb
SMWB
$780M
| $166K | ﹤0.01% |
+27,000
| New | +$98.2K |
|
5780
indie Semiconductor
INDI
$761M
| $165K | ﹤0.01% |
+36,857
| New | +$147K |
|
5781
PUT
Playboy Inc
PLBY
$140M
| $165K | ﹤0.01% |
135,600
+84,400
| +165% | +$128K |
|
|
ABX
5782
Abacus Global Management
ABX
$940M
| $165K | ﹤0.01% |
15,403
-16,963
| -52% | -$155K |
|
5783
Mach Natural Resources
MNR
$2.1B
| $164K | ﹤0.01% |
+13,009
| New | +$174K |
|
5784
CALL
RPC Inc
RES
$1.44B
| $164K | ﹤0.01% |
+28,200
| New | +$196K |
|
5785
PUT
Ocular Therapeutix
OCUL
$2.34B
| $164K | ﹤0.01% |
16,700
-47,500
| -74% | -$431K |
|
5786
PUT
Atlas Lithium Corp
ATLX
$100M
| $164K | ﹤0.01% |
44,400
+6,600
| +17% | +$29.4K |
|
5787
CALL
MBIA
MBI
$243M
| $164K | ﹤0.01% |
25,100
-14,800
| -37% | -$89.2K |
|
5788
Utz Brands
UTZ
$1.26B
| $164K | ﹤0.01% |
21,252
+2,994
| +16% | +$22.3K |
|
|
MFA
5789
CALL
MFA Financial
MFA
$905M
| $163K | ﹤0.01% |
16,800
-14,500
| -46% | -$141K |
|
|
LAR
5790
Lithium Argentina AG
LAR
$1.11B
| $162K | ﹤0.01% |
+19,634
| New | +$182K |
|
5791
PUT
Inseego
INSG
$69.6M
| $162K | ﹤0.01% |
15,700
-5,000
| -24% | -$67K |
|
|
IONZ
5792
PUT
Defiance Daily Target 2x Short IONQ ETF
IONZ
$294K
| $162K | ﹤0.01% |
10,100
-2,100
| -17% | -$14.2K |
|
5793
CALL
Veritone
VERI
$91.1M
| $162K | ﹤0.01% |
118,300
-42,000
| -26% | -$80.2K |
|
5794
YieldMax MSTR Option Income Strategy ETF
MSTY
$997M
| $162K | ﹤0.01% |
+13,240
| New | +$284K |
|
|
FPI
5795
PUT
Farmland Partners
FPI
$465M
| $161K | ﹤0.01% |
+16,600
| New | +$177K |
|
5796
PUT
Funko
FNKO
$318M
| $161K | ﹤0.01% |
27,300
-5,600
| -17% | -$26.9K |
|
|
CRON
5797
PUT
Cronos Group
CRON
$1.2B
| $160K | ﹤0.01% |
57,500
-19,000
| -25% | -$51K |
|
5798
PUT
Korea Electric Power
KEP
$15.3B
| $160K | ﹤0.01% |
13,200
+2,400
| +22% | +$33.2K |
|
5799
PUT
Playtika
PLTK
$839M
| $160K | ﹤0.01% |
42,900
-10,800
| -20% | -$37.3K |
|
5800
PUT
Evolv Technologies
EVLV
$906M
| $159K | ﹤0.01% |
27,400
-17,900
| -40% | -$112K |
|
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.