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 | |
|---|---|---|---|---|---|---|
1951
Medtronic
MDT
$117B
| $2.2M | ﹤0.01% |
+25,229
| New | +$2.14M |
|
1952
KE Holdings
BEKE
$18.7B
| $2.19M | ﹤0.01% |
123,652
-43,533
| -26% | -$837K |
|
1953
CALL
BCE
BCE
$21.9B
| $2.19M | ﹤0.01% |
98,800
+18,700
| +23% | +$409K |
|
1954
CALL
ZIM Integrated Shipping Services
ZIM
$3.35B
| $2.19M | ﹤0.01% |
136,100
-136,800
| -50% | -$2.15M |
|
1955
PUT
AngloGold Ashanti
AU
$48.8B
| $2.19M | ﹤0.01% |
48,000
+34,800
| +264% | +$1.5M |
|
1956
PUT
Fluence Energy
FLNC
$2.46B
| $2.19M | ﹤0.01% |
325,900
+58,400
| +22% | +$278K |
|
1957
PUT
Flex
FLEX
$46B
| $2.18M | ﹤0.01% |
43,700
+28,800
| +193% | +$1.12M |
|
1958
PUT
Natera
NTRA
$44.3B
| $2.18M | ﹤0.01% |
12,900
-11,300
| -47% | -$1.76M |
|
1959
Mohawk Industries
MHK
$9.44B
| $2.18M | ﹤0.01% |
+20,762
| New | +$2.16M |
|
1960
CALL
Madison Square Garden
MSGS
$9.73B
| $2.17M | ﹤0.01% |
+10,400
| New | +$2M |
|
1961
CALL
Pagaya Technologies
PGY
$1.78B
| $2.17M | ﹤0.01% |
101,700
+6,500
| +7% | +$92.5K |
|
1962
CALL
Levi Strauss
LEVI
$8.54B
| $2.16M | ﹤0.01% |
116,600
+47,500
| +69% | +$790K |
|
1963
NetEase
NTES
$79.9B
| $2.15M | ﹤0.01% |
+16,006
| New | +$1.84M |
|
1964
PUT
Onto Innovation
ONTO
$20.6B
| $2.15M | ﹤0.01% |
21,300
+6,100
| +40% | +$651K |
|
1965
CALL
Fiverr
FVRR
$322M
| $2.14M | ﹤0.01% |
73,000
-28,700
| -28% | -$826K |
|
1966
CALL
Calumet Specialty Products
CLMT
$4.24B
| $2.14M | ﹤0.01% |
135,600
+38,200
| +39% | +$486K |
|
1967
CALL
ARK Blockchain & Fintech Innovation ETF
ARKF
$773M
| $2.14M | ﹤0.01% |
42,500
-2,400
| -5% | -$94.5K |
|
1968
PUT
Globant
GLOB
$1.62B
| $2.13M | ﹤0.01% |
23,500
+12,200
| +108% | +$1.3M |
|
1969
CALL
Grab
GRAB
$15B
| $2.13M | ﹤0.01% |
423,600
+223,700
| +112% | +$1.04M |
|
1970
Rocket Companies
RKT
$42.2B
| $2.13M | ﹤0.01% |
+150,150
| New | +$1.95M |
|
1971
CALL
Western Midstream Partners
WES
$20B
| $2.13M | ﹤0.01% |
55,000
-32,800
| -37% | -$1.25M |
|
|
RDFN
1972
CALL
DELISTED
Redfin
RDFN
| $2.13M | ﹤0.01% |
190,100
-110,700
| -37% | -$1.09M |
|
1973
SLB Ltd
SLB
$79.3B
| $2.13M | ﹤0.01% |
+62,886
| New | +$2.18M |
|
1974
PUT
Golar LNG
GLNG
$5.27B
| $2.13M | ﹤0.01% |
51,600
+13,400
| +35% | +$528K |
|
1975
ProShares Ultra Communication Services
LTL
$6.73M
| $2.11M | ﹤0.01% |
84,800
+26,688
| +46% | +$554K |
|
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.