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 | |
|---|---|---|---|---|---|---|
3551
PUT
FMC
FMC
$1.62B
| $1.27M | ﹤0.01% |
110,700
-51,900
| -32% | -$724K |
|
|
NAK
3552
Northern Dynasty Minerals
NAK
$826M
| $1.27M | ﹤0.01% |
662,884
-49,497
| -7% | -$99.3K |
|
3553
CALL
Bank of Hawaii
BOH
$3.05B
| $1.27M | ﹤0.01% |
15,600
+9,200
| +144% | +$720K |
|
3554
CALL
Valmont Industries
VMI
$9.29B
| $1.27M | ﹤0.01% |
2,200
-400
| -15% | -$201K |
|
3555
CALL
Arbor Realty Trust
ABR
$979M
| $1.27M | ﹤0.01% |
234,200
+72,500
| +45% | +$471K |
|
3556
CALL
Bread Financial
BFH
$4.26B
| $1.27M | ﹤0.01% |
11,700
+1,800
| +18% | +$162K |
|
3557
CALL
Voya Financial
VOYA
$9.43B
| $1.27M | ﹤0.01% |
14,000
+3,300
| +31% | +$269K |
|
3558
PUT
FLEX LNG
FLNG
$1.7B
| $1.27M | ﹤0.01% |
45,100
+5,800
| +15% | +$179K |
|
3559
Brookdale Senior Living
BKD
$2.81B
| $1.26M | ﹤0.01% |
78,589
+8,920
| +13% | +$121K |
|
3560
PUT
Box
BOX
$4.83B
| $1.26M | ﹤0.01% |
47,600
+23,100
| +94% | +$577K |
|
3561
PUT
Viatris
VTRS
$19.4B
| $1.26M | ﹤0.01% |
79,400
-82,800
| -51% | -$1.28M |
|
3562
CALL
Cognex
CGNX
$10.5B
| $1.26M | ﹤0.01% |
17,400
-43,600
| -71% | -$2.65M |
|
3563
PUT
New York Times
NYT
$10.9B
| $1.26M | ﹤0.01% |
18,000
-40,500
| -69% | -$3.12M |
|
|
SOLS
3564
Solstice Advanced Materials
SOLS
$10.1B
| $1.26M | ﹤0.01% |
14,216
-4,327
| -23% | -$357K |
|
|
SW
3565
PUT
Smurfit Westrock
SW
$24B
| $1.26M | ﹤0.01% |
27,200
+4,400
| +19% | +$182K |
|
|
PALU
3566
Direxion Daily PANW Bull 2X ETF
PALU
$27.2M
| $1.26M | ﹤0.01% |
+24,349
| New | +$621K |
|
3567
PUT
Public Service Enterprise Group
PEG
$36.7B
| $1.26M | ﹤0.01% |
15,500
+2,400
| +18% | +$192K |
|
3568
CALL
Bloomin' Brands
BLMN
$838M
| $1.26M | ﹤0.01% |
137,600
+61,000
| +80% | +$444K |
|
3569
CALL
Boise Cascade
BCC
$2.76B
| $1.26M | ﹤0.01% |
16,200
+10,400
| +179% | +$771K |
|
3570
CALL
Revvity
RVTY
$14.5B
| $1.26M | ﹤0.01% |
11,300
+5,100
| +82% | +$491K |
|
3571
CALL
Asana
ASAN
$2.02B
| $1.26M | ﹤0.01% |
179,300
-38,500
| -18% | -$258K |
|
3572
PUT
Arqit Quantum
ARQQ
$372M
| $1.25M | ﹤0.01% |
+42,200
| New | +$687K |
|
3573
CALL
Evergy
EVRG
$18.8B
| $1.25M | ﹤0.01% |
14,500
+3,200
| +28% | +$265K |
|
3574
Biohaven
BHVN
$2.37B
| $1.25M | ﹤0.01% |
84,201
+62,121
| +281% | +$669K |
|
3575
Domo
DOMO
$183M
| $1.25M | ﹤0.01% |
400,262
+318,831
| +392% | +$1.07M |
|
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.