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 | |
|---|---|---|---|---|---|---|
2901
PUT
Marriott Vacations Worldwide
VAC
$3.67B
| $2.26M | ﹤0.01% |
22,200
+2,200
| +11% | +$176K |
|
2902
PUT
Hormel Foods
HRL
$11.9B
| $2.26M | ﹤0.01% |
91,100
-7,000
| -7% | -$156K |
|
2903
PUT
Matador Resources
MTDR
$7.32B
| $2.26M | ﹤0.01% |
45,400
-24,700
| -35% | -$1.4M |
|
2904
Goodyear
GT
$1.8B
| $2.26M | ﹤0.01% |
341,861
+160,135
| +88% | +$1.03M |
|
2905
CALL
Helen of Troy
HELE
$661M
| $2.25M | ﹤0.01% |
77,500
+12,200
| +19% | +$289K |
|
2906
CALL
Vanguard World Funds Extended Duration ETF
EDV
$3.5B
| $2.25M | ﹤0.01% |
34,600
-40,200
| -54% | -$2.57M |
|
2907
PUT
ODDITY Tech
ODD
$634M
| $2.25M | ﹤0.01% |
148,800
+75,800
| +104% | +$1.02M |
|
2908
PUT
Repligen
RGEN
$9.46B
| $2.25M | ﹤0.01% |
16,500
-6,900
| -29% | -$848K |
|
2909
Factset
FDS
$10.7B
| $2.25M | ﹤0.01% |
9,782
+6,373
| +187% | +$1.46M |
|
2910
PUT
Gold Fields
GFI
$42.2B
| $2.25M | ﹤0.01% |
66,900
+41,000
| +158% | +$1.71M |
|
|
AVB
2911
PUT
DELISTED
AvalonBay Communities
AVB
| $2.25M | ﹤0.01% |
11,900
-26,900
| -69% | -$4.86M |
|
2912
PUT
Fortune Brands Innovations
FBIN
$5.15B
| $2.24M | ﹤0.01% |
+40,800
| New | +$1.63M |
|
|
AMRZ
2913
Amrize Ltd
AMRZ
$24B
| $2.24M | ﹤0.01% |
41,996
+13,631
| +48% | +$738K |
|
2914
CALL
Wabtec
WAB
$47.8B
| $2.24M | ﹤0.01% |
8,300
-5,500
| -40% | -$1.45M |
|
2915
CALL
ProShares UltraShort Health Care
RXD
$2.92M
| $2.24M | ﹤0.01% |
64,000
+20,900
| +48% | +$412K |
|
2916
CALL
Better Home & Finance Holding
BETR
$275M
| $2.24M | ﹤0.01% |
81,300
+3,200
| +4% | +$103K |
|
2917
CALL
Mitek Systems
MITK
$838M
| $2.23M | ﹤0.01% |
111,000
+71,000
| +178% | +$1.1M |
|
2918
PUT
Noble Corp
NE
$7.28B
| $2.23M | ﹤0.01% |
59,800
-100
| -0.2% | -$4.78K |
|
2919
CEVA Inc
CEVA
$759M
| $2.23M | ﹤0.01% |
+47,275
| New | +$1.67M |
|
2920
PUT
Sensata Technologies
ST
$6.27B
| $2.23M | ﹤0.01% |
46,700
+21,400
| +85% | +$968K |
|
|
2921
Gold Fields
GFI
$42.2B
| $2.23M | ﹤0.01% |
+66,262
| New | +$2.76M |
|
|
JPGE
2922
PUT
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $2.23M | ﹤0.01% |
39,400
+12,100
| +44% | +$683K |
|
2923
British American Tobacco
BTI
$119B
| $2.22M | ﹤0.01% |
+36,018
| New | +$2.17M |
|
2924
CALL
Acuity Brands
AYI
$10B
| $2.22M | ﹤0.01% |
5,900
+4,500
| +321% | +$1.33M |
|
2925
PUT
Credicorp
BAP
$30.4B
| $2.22M | ﹤0.01% |
5,700
+3,700
| +185% | +$1.26M |
|
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.