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 | |
|---|---|---|---|---|---|---|
2001
CALL
Brookfield
BN
$107B
| $2M | ﹤0.01% |
48,600
+150
| +0.3% | +$5.56K |
|
2002
PUT
Sphere Entertainment
SPHR
$6.38B
| $2M | ﹤0.01% |
47,900
-2,400
| -5% | -$81.3K |
|
2003
VanEck Gold Miners ETF
GDX
$27.7B
| $2M | ﹤0.01% |
+38,395
| New | +$1.91M |
|
2004
PUT
KeyCorp
KEY
$24.9B
| $2M | ﹤0.01% |
114,600
-65,800
| -36% | -$1.02M |
|
2005
PUT
Universal Health Services
UHS
$10.1B
| $1.99M | ﹤0.01% |
11,000
-21,200
| -66% | -$3.83M |
|
2006
Wendy's
WEN
$1.64B
| $1.99M | ﹤0.01% |
174,385
+66,897
| +62% | +$816K |
|
|
ETHA
2007
PUT
iShares Ethereum Trust ETF
ETHA
$5.5B
| $1.99M | ﹤0.01% |
+104,400
| New | +$1.74M |
|
2008
CALL
RUM Group Inc
RUM
$3.76B
| $1.99M | ﹤0.01% |
221,700
+119,700
| +117% | +$1.02M |
|
|
KC
2009
CALL
Kingsoft Cloud Holdings
KC
$3.53B
| $1.99M | ﹤0.01% |
159,000
+700
| +0.4% | +$9.06K |
|
2010
RH
RH
$3.43B
| $1.99M | ﹤0.01% |
+10,515
| New | +$1.95M |
|
2011
CALL
H&R Block
HRB
$6.78B
| $1.98M | ﹤0.01% |
36,100
+8,000
| +28% | +$462K |
|
2012
PUT
Calumet Specialty Products
CLMT
$4.26B
| $1.98M | ﹤0.01% |
125,700
+56,400
| +81% | +$717K |
|
2013
PUT
Ouster
OUST
$3.46B
| $1.97M | ﹤0.01% |
81,400
+23,800
| +41% | +$289K |
|
2014
CALL
Parsons
PSN
$5.08B
| $1.97M | ﹤0.01% |
27,500
+1,900
| +7% | +$125K |
|
|
GRRR
2015
PUT
Gorilla Technology Group
GRRR
$435M
| $1.97M | ﹤0.01% |
99,200
+26,500
| +36% | +$495K |
|
2016
CALL
BorgWarner
BWA
$14B
| $1.97M | ﹤0.01% |
58,900
+19,600
| +50% | +$601K |
|
2017
CALL
Plug Power
PLUG
$3.23B
| $1.96M | ﹤0.01% |
1,315,100
-257,500
| -16% | -$257K |
|
2018
Asana
ASAN
$2.16B
| $1.96M | ﹤0.01% |
145,087
+90,298
| +165% | +$1.42M |
|
2019
ARK Genomic Revolution ETF
ARKG
$1.74B
| $1.96M | ﹤0.01% |
80,334
+17,484
| +28% | +$383K |
|
2020
PUT
Baxter International
BAX
$13.9B
| $1.96M | ﹤0.01% |
64,600
-462,600
| -88% | -$14M |
|
2021
Tapestry
TPR
$25.9B
| $1.95M | ﹤0.01% |
22,227
-6,231
| -22% | -$472K |
|
|
2022
CALL
Wendy's
WEN
$1.64B
| $1.95M | ﹤0.01% |
170,500
-20,000
| -10% | -$244K |
|
2023
PUT
Cal-Maine
CALM
$3.83B
| $1.94M | ﹤0.01% |
19,500
+1,900
| +11% | +$182K |
|
2024
CALL
Camping World
CWH
$667M
| $1.94M | ﹤0.01% |
112,900
+40,100
| +55% | +$625K |
|
|
ARR
2025
CALL
Armour Residential REIT
ARR
$2.39B
| $1.94M | ﹤0.01% |
115,400
+58,300
| +102% | +$936K |
|
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.