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 | |
|---|---|---|---|---|---|---|
3576
PUT
Skywest
SKYW
$3.85B
| $1.25M | ﹤0.01% |
12,600
+5,300
| +73% | +$472K |
|
3577
First Trust NASDAQ Cybersecurity ETF
CIBR
$15.2B
| $1.25M | ﹤0.01% |
+13,928
| New | +$1.07M |
|
3578
Virgin Galactic
SPCE
$461M
| $1.25M | ﹤0.01% |
432,610
+370,721
| +599% | +$1.21M |
|
3579
CALL
Everspin Technologies
MRAM
$399M
| $1.25M | ﹤0.01% |
51,700
+22,100
| +75% | +$495K |
|
3580
Lightwave Logic
LWLG
$825M
| $1.25M | ﹤0.01% |
+132,146
| New | +$1.55M |
|
3581
PUT
Mohawk Industries
MHK
$9.05B
| $1.25M | ﹤0.01% |
10,300
+900
| +10% | +$94.6K |
|
3582
Teekay Tankers
TNK
$3.24B
| $1.25M | ﹤0.01% |
19,248
+2,006
| +12% | +$151K |
|
3583
CALL
Asbury Automotive
ABG
$3.9B
| $1.25M | ﹤0.01% |
6,200
+5,100
| +464% | +$1M |
|
3584
PUT
Crescent Energy
CRGY
$4.55B
| $1.25M | ﹤0.01% |
126,800
-68,000
| -35% | -$831K |
|
3585
CALL
Delek US
DK
$4.4B
| $1.24M | ﹤0.01% |
24,500
-52,200
| -68% | -$2.32M |
|
|
KOCG
3586
PUT
DELISTED
FIS Knights of Columbus Global Belief ETF
KOCG
| $1.24M | ﹤0.01% |
23,400
+7,600
| +48% | +$404K |
|
3587
CALL
LendingTree
TREE
$398M
| $1.24M | ﹤0.01% |
28,100
-94,900
| -77% | -$3.84M |
|
3588
PUT
Trimble
TRMB
$13.9B
| $1.24M | ﹤0.01% |
24,300
+7,700
| +46% | +$455K |
|
3589
CALL
Aspen Aerogels
ASPN
$408M
| $1.24M | ﹤0.01% |
196,100
+53,900
| +38% | +$264K |
|
3590
CALL
Dine Brands
DIN
$401M
| $1.24M | ﹤0.01% |
34,600
+24,300
| +236% | +$726K |
|
3591
PUT
Jones Lang LaSalle
JLL
$16.7B
| $1.24M | ﹤0.01% |
4,000
-5,700
| -59% | -$1.77M |
|
3592
CALL
Vanguard Total International Stock ETF
VXUS
$165B
| $1.24M | ﹤0.01% |
14,500
-1,100
| -7% | -$92.1K |
|
|
VELO
3593
Velo3D Inc
VELO
$373M
| $1.24M | ﹤0.01% |
70,580
+46,361
| +191% | +$803K |
|
3594
CALL
Cinemark Holdings
CNK
$4.06B
| $1.24M | ﹤0.01% |
39,000
-154,500
| -80% | -$4.59M |
|
3595
Teva Pharmaceuticals
TEVA
$42.4B
| $1.24M | ﹤0.01% |
36,515
-53,054
| -59% | -$1.77M |
|
3596
Reliance Steel & Aluminium
RS
$20.4B
| $1.24M | ﹤0.01% |
+3,309
| New | +$1.21M |
|
3597
Li Auto
LI
$12.1B
| $1.23M | ﹤0.01% |
105,083
+92,666
| +746% | +$1.52M |
|
3598
Sterling Infrastructure
STRL
$14.9B
| $1.23M | ﹤0.01% |
1,469
-1,330
| -48% | -$933K |
|
3599
Qorvo
QRVO
$9.07B
| $1.23M | ﹤0.01% |
+13,216
| New | +$1.22M |
|
3600
PUT
Badger Meter
BMI
$3.84B
| $1.23M | ﹤0.01% |
8,300
+5,200
| +168% | +$680K |
|
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.