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 | |
|---|---|---|---|---|---|---|
5826
CALL
SFL Corp
SFL
$1.78B
| $152K | ﹤0.01% |
+14,900
| New | +$169K |
|
5827
Genius Sports
GENI
$2B
| $152K | ﹤0.01% |
+25,066
| New | +$130K |
|
|
MTA
5828
CALL
Metalla Royalty & Streaming
MTA
$964M
| $151K | ﹤0.01% |
19,900
+4,000
| +25% | +$28.3K |
|
5829
CALL
Green Dot
GDOT
$760M
| $151K | ﹤0.01% |
+11,200
| New | +$140K |
|
|
API
5830
CALL
Agora
API
$358M
| $151K | ﹤0.01% |
37,900
+10,700
| +39% | +$43K |
|
5831
CALL
Odyssey Marine Exploration
OMEX
$47.9M
| $150K | ﹤0.01% |
176,800
+16,500
| +10% | +$16.8K |
|
|
ONDG
5832
Leverage Shares 2X Long ONDS Daily ETF
ONDG
$22.3M
| $150K | ﹤0.01% |
45,115
+34,854
| +340% | +$199K |
|
5833
GoPro
GPRO
$351M
| $150K | ﹤0.01% |
192,886
+36,622
| +23% | +$38.7K |
|
5834
Lantronix
LTRX
$244M
| $150K | ﹤0.01% |
+25,452
| New | +$163K |
|
5835
CALL
Arlo Technologies
ARLO
$1.5B
| $150K | ﹤0.01% |
11,100
-3,800
| -26% | -$51.5K |
|
|
BZAI
5836
PUT
Blaize Holdings
BZAI
$66.7M
| $149K | ﹤0.01% |
108,300
+91,800
| +556% | +$161K |
|
5837
PagerDuty
PD
$1.07B
| $149K | ﹤0.01% |
+15,458
| New | +$117K |
|
|
FIRY
5838
CALL
Firy Inc
FIRY
$166M
| $149K | ﹤0.01% |
14,600
-9,300
| -39% | -$64.7K |
|
5839
PUT
LegalZoom.com
LZ
$1.05B
| $148K | ﹤0.01% |
24,200
+3,600
| +17% | +$22.1K |
|
|
BZAI
5840
Blaize Holdings
BZAI
$66.7M
| $148K | ﹤0.01% |
+107,110
| New | +$188K |
|
|
OPENL
5841
Opendoor Technologies Inc Series A Warrants
OPENL
$3.64M
| $148K | ﹤0.01% |
+31,975
| New | +$9.82K |
|
|
OPENW
5842
Opendoor Technologies Inc Series K Warrants
OPENW
$5.32M
| $148K | ﹤0.01% |
+31,975
| New | +$19.2K |
|
|
OPENZ
5843
Opendoor Technologies Inc Series Z Warrants
OPENZ
$3.38M
| $148K | ﹤0.01% |
+31,975
| New | +$9.15K |
|
5844
PUT
Alpha Tau Medical
DRTS
$1.39B
| $147K | ﹤0.01% |
+11,700
| New | +$106K |
|
5845
CALL
Unisys
UIS
$191M
| $147K | ﹤0.01% |
40,200
+11,700
| +41% | +$36.7K |
|
|
CORD
5846
T-REX 2X Inverse CRWV Daily Target ETF
CORD
$25.1M
| $146K | ﹤0.01% |
+26,650
| New | +$168K |
|
5847
PUT
Arbe Robotics
ARBE
$81M
| $146K | ﹤0.01% |
175,500
+32,500
| +23% | +$28.1K |
|
5848
CALL
Paysafe
PSFE
$350M
| $146K | ﹤0.01% |
19,500
+3,500
| +22% | +$27.4K |
|
5849
CALL
Inter&Co
INTR
$2.5B
| $146K | ﹤0.01% |
26,800
+13,000
| +94% | +$87.4K |
|
5850
CALL
Taboola.com
TBLA
$1.04B
| $146K | ﹤0.01% |
+29,100
| New | +$127K |
|
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.