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 |
iShares Bitcoin Trust
IBIT
|
+$232M |
| 2 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$168M |
| 3 |
Apple
AAPL
|
+$149M |
| 4 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$136M |
| 5 |
UnitedHealth
UNH
|
+$110M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$153M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$127M |
| 3 |
Advanced Micro Devices
AMD
|
+$97.1M |
| 4 |
TSMC
TSM
|
+$65.3M |
| 5 |
SPYM
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$57.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.32% |
| 2 | Consumer Discretionary | 0.25% |
| 3 | Healthcare | 0.13% |
| 4 | Communication Services | 0.1% |
| 5 | Financials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1976
Toast
TOST
$20.1B
| $2.11M | ﹤0.01% |
47,635
+103
| +0.2% | +$4.05K |
|
1977
CALL
Tradeweb Markets
TW
$22.1B
| $2.11M | ﹤0.01% |
14,400
-20,500
| -59% | -$2.86M |
|
1978
Trip.com Group
TCOM
$28.3B
| $2.1M | ﹤0.01% |
+35,872
| New | +$2.16M |
|
1979
CALL
Under Armour
UAA
$2.31B
| $2.1M | ﹤0.01% |
307,200
+205,300
| +201% | +$1.28M |
|
1980
CALL
Universal Health Services
UHS
$10.1B
| $2.08M | ﹤0.01% |
11,500
+500
| +5% | +$90.2K |
|
1981
HP
HPQ
$28.1B
| $2.08M | ﹤0.01% |
85,122
+55,379
| +186% | +$1.41M |
|
1982
CALL
Exelixis
EXEL
$12.6B
| $2.06M | ﹤0.01% |
46,800
+8,000
| +21% | +$320K |
|
1983
CALL
EPAM Systems
EPAM
$5.23B
| $2.05M | ﹤0.01% |
11,600
-2,400
| -17% | -$401K |
|
1984
PUT
Restaurant Brands International
QSR
$27B
| $2.05M | ﹤0.01% |
30,900
+3,900
| +14% | +$261K |
|
1985
CALL
Viper Energy
VNOM
$15.3B
| $2.05M | ﹤0.01% |
53,700
+1,400
| +3% | +$56.6K |
|
1986
Procter & Gamble
PG
$335B
| $2.05M | ﹤0.01% |
+12,851
| New | +$2.1M |
|
1987
PUT
ARK 21Shares Bitcoin ETF
ARKB
$2.39B
| $2.04M | ﹤0.01% |
57,000
-1,200
| -2% | -$39.3K |
|
1988
PUT
ODDITY Tech
ODD
$608M
| $2.04M | ﹤0.01% |
27,000
+16,400
| +155% | +$1,000K |
|
1989
PUT
Scotiabank
BNS
$111B
| $2.03M | ﹤0.01% |
36,800
+10,700
| +41% | +$545K |
|
1990
CALL
Lazard
LAZ
$4.43B
| $2.03M | ﹤0.01% |
+42,300
| New | +$1.77M |
|
1991
CALL
Gold Fields
GFI
$36B
| $2.03M | ﹤0.01% |
85,600
+49,000
| +134% | +$1.13M |
|
1992
CALL
Global E Online
GLBE
$7.07B
| $2.03M | ﹤0.01% |
60,400
+10,100
| +20% | +$341K |
|
|
TTAN
1993
CALL
ServiceTitan Inc
TTAN
$8.63B
| $2.03M | ﹤0.01% |
18,900
+3,600
| +24% | +$402K |
|
1994
iShares MSCI South Korea ETF
EWY
$28B
| $2.02M | ﹤0.01% |
+28,145
| New | +$1.69M |
|
1995
CALL
Portillo's
PTLO
$369M
| $2.02M | ﹤0.01% |
173,000
+19,700
| +13% | +$227K |
|
1996
CALL
SSR Mining
SSRM
$6.66B
| $2.02M | ﹤0.01% |
158,200
+200
| +0.1% | +$2.25K |
|
1997
PUT
Scorpio Tankers
STNG
$3.98B
| $2.02M | ﹤0.01% |
51,500
+17,900
| +53% | +$698K |
|
1998
CALL
GlobalFoundries
GFS
$29.8B
| $2.01M | ﹤0.01% |
52,700
+5,700
| +12% | +$207K |
|
1999
CALL
International Flavors & Fragrances
IFF
$21.3B
| $2.01M | ﹤0.01% |
27,300
-23,100
| -46% | -$1.74M |
|
2000
PUT
Sony
SONY
$142B
| $2M | ﹤0.01% |
77,000
-104,900
| -58% | -$2.63M |
|
Similar funds
IMC Chicago's Q2 2025 Portfolio in Review
As of Q2 2025, IMC Chicago held 3,685 positions worth $225B, up 27% from $177B the previous quarter. Its ten largest holdings account for 42% of the portfolio.
IMC Chicago deployed $13.1B of net new capital in Q2 2025, opening 615 new positions and adding to 1,602 existing holdings. Its largest new stake was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
By sector, the portfolio is most concentrated in Technology at 0.32% of assets, up from 0.28% a quarter earlier, followed by Consumer Discretionary and Healthcare.
On the sell side, the largest reduction was Invesco QQQ Trust, an estimated $153M trimmed.
- IMC Chicago's largest Q2 2025 buy was iShares Bitcoin Trust: 4,132,010 shares worth $253M.
- IMC Chicago added most to Sprott Physical Gold in Q2 2025, an estimated $77.8M increase.
- IMC Chicago's biggest Q2 2025 reduction was Invesco QQQ Trust, cutting an estimated $153M.
- IMC Chicago fully exited Advanced Micro Devices in Q2 2025, selling an estimated $97.1M.
- IMC Chicago's ten largest holdings make up 42% of its $225B portfolio in Q2 2025.
- IMC Chicago opened 615 new positions and closed 423 in Q2 2025.
- IMC Chicago's portfolio value rose 27% quarter-over-quarter to $225B.
Based on IMC Chicago's 13F filing for Q2 2025, filed 22 Jul 2025.