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 | |
|---|---|---|---|---|---|---|
2351
PUT
Photronics
PLAB
$1.72B
| $3.94M | ﹤0.01% |
121,200
+111,100
| +1,100% | +$4.7M |
|
2352
CALL
Anterix
ATEX
$1.69B
| $3.94M | ﹤0.01% |
38,300
+18,300
| +92% | +$1.07M |
|
2353
CALL
Global X S&P 500 Tail Risk ETF
XTR
$4.94M
| $3.94M | ﹤0.01% |
64,000
+28,700
| +81% | +$794K |
|
2354
ProShares UltraShort S&P500
SDS
$385M
| $3.93M | ﹤0.01% |
69,168
-32,761
| -32% | -$2M |
|
2355
PUT
Sociedad Química y Minera de Chile
SQM
$21.8B
| $3.93M | ﹤0.01% |
53,100
-5,100
| -9% | -$427K |
|
2356
CALL
Aecom
ACM
$8.57B
| $3.93M | ﹤0.01% |
56,300
+16,700
| +42% | +$1.28M |
|
2357
PUT
CSX Corp
CSX
$91.5B
| $3.93M | ﹤0.01% |
82,600
-317,200
| -79% | -$14.3M |
|
2358
CALL
KBR
KBR
$4.64B
| $3.92M | ﹤0.01% |
113,500
+76,400
| +206% | +$2.66M |
|
2359
PUT
Boston Properties
BXP
$10.8B
| $3.92M | ﹤0.01% |
59,100
-24,200
| -29% | -$1.45M |
|
2360
AdvisorShares Pure US Cannabis ETF
MSOS
$1.01B
| $3.92M | ﹤0.01% |
771,373
+303,450
| +65% | +$1.42M |
|
2361
PUT
American Superconductor
AMSC
$1.43B
| $3.92M | ﹤0.01% |
94,400
+46,100
| +95% | +$2.08M |
|
2362
CALL
DigitalBridge
DBRG
$2.99B
| $3.91M | ﹤0.01% |
247,900
-46,900
| -16% | -$734K |
|
2363
CALL
AMC Entertainment Holdings
AMC
$2.37B
| $3.91M | ﹤0.01% |
2,056,700
+1,044,000
| +103% | +$1.8M |
|
2364
CALL
Virgin Galactic
SPCE
$461M
| $3.9M | ﹤0.01% |
1,351,100
+963,400
| +248% | +$3.15M |
|
2365
Unilever
UL
$138B
| $3.9M | ﹤0.01% |
64,935
+37,557
| +137% | +$2.17M |
|
2366
PUT
Yum! Brands
YUM
$41.1B
| $3.9M | ﹤0.01% |
24,400
+800
| +3% | +$124K |
|
2367
PUT
IMAX
IMAX
$2.83B
| $3.9M | ﹤0.01% |
97,800
-28,500
| -23% | -$1.09M |
|
2368
CALL
Lightwave Logic
LWLG
$825M
| $3.89M | ﹤0.01% |
411,600
+163,300
| +66% | +$1.91M |
|
2369
CALL
Allegiant Air
ALGT
$2.14B
| $3.89M | ﹤0.01% |
33,100
+6,600
| +25% | +$571K |
|
|
ZVOL
2370
CALL
Volatility Premium Plus ETF
ZVOL
$17.1M
| $3.89M | ﹤0.01% |
376,800
+73,500
| +24% | +$619K |
|
2371
CALL
Idacorp
IDA
$7.85B
| $3.89M | ﹤0.01% |
+25,700
| New | +$3.7M |
|
2372
CALL
McEwen Inc
MUX
$1.23B
| $3.89M | ﹤0.01% |
214,400
-46,500
| -18% | -$1M |
|
|
SW
2373
Smurfit Westrock
SW
$24B
| $3.88M | ﹤0.01% |
+83,818
| New | +$3.46M |
|
2374
PUT
Capri Holdings
CPRI
$1.54B
| $3.88M | ﹤0.01% |
208,800
+82,300
| +65% | +$1.58M |
|
2375
CALL
Brown & Brown
BRO
$23.9B
| $3.87M | ﹤0.01% |
60,400
+27,300
| +82% | +$1.67M |
|
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.