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 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2151
Dow Inc
DOW
$21.9B
| $2.22M | ﹤0.01% |
+96,633
| New | +$2.41M |
|
2152
Insmed
INSM
$28.9B
| $2.2M | ﹤0.01% |
+15,282
| New | +$1.87M |
|
|
SGI
2153
CALL
Somnigroup International
SGI
$13.5B
| $2.19M | ﹤0.01% |
26,000
-1,400
| -5% | -$110K |
|
2154
Shake Shack
SHAK
$2.94B
| $2.19M | ﹤0.01% |
+23,422
| New | +$2.69M |
|
|
XIFR
2155
PUT
XPLR Infrastructure LP
XIFR
$1.08B
| $2.19M | ﹤0.01% |
215,500
+48,800
| +29% | +$472K |
|
2156
BJs Wholesale Club
BJ
$11.8B
| $2.19M | ﹤0.01% |
23,484
-7,651
| -25% | -$782K |
|
2157
iShares MSCI Canada ETF
EWC
$6.55B
| $2.18M | ﹤0.01% |
43,128
+29,864
| +225% | +$1.43M |
|
|
MPT
2158
CALL
Medical Properties Trust
MPT
$2.51B
| $2.18M | ﹤0.01% |
429,300
-178,700
| -29% | -$787K |
|
2159
CALL
Badger Meter
BMI
$3.91B
| $2.16M | ﹤0.01% |
+12,100
| New | +$2.38M |
|
2160
CALL
Flowserve
FLS
$10.3B
| $2.16M | ﹤0.01% |
40,600
-3,400
| -8% | -$185K |
|
2161
PUT
Yeti Holdings
YETI
$3.44B
| $2.15M | ﹤0.01% |
64,900
-32,100
| -33% | -$1.12M |
|
2162
PUT
Sanofi
SNY
$105B
| $2.15M | ﹤0.01% |
45,600
+21,100
| +86% | +$1.02M |
|
2163
Canadian National Railway
CNI
$76.4B
| $2.15M | ﹤0.01% |
+22,815
| New | +$2.2M |
|
|
SGI
2164
PUT
Somnigroup International
SGI
$13.5B
| $2.15M | ﹤0.01% |
25,500
-1,600
| -6% | -$126K |
|
2165
PUT
Yum China
YUMC
$16.2B
| $2.15M | ﹤0.01% |
50,100
-2,800
| -5% | -$127K |
|
|
HSAI
2166
PUT
Hesai Group
HSAI
$3.03B
| $2.15M | ﹤0.01% |
76,500
+51,600
| +207% | +$1.26M |
|
2167
PUT
Build-A-Bear
BBW
$474M
| $2.15M | ﹤0.01% |
+32,900
| New | +$1.94M |
|
2168
ARK 21Shares Bitcoin ETF
ARKB
$2.41B
| $2.14M | ﹤0.01% |
56,404
+30,727
| +120% | +$1.17M |
|
2169
CALL
Elanco Animal Health
ELAN
$11.2B
| $2.14M | ﹤0.01% |
106,400
+50,300
| +90% | +$843K |
|
2170
PUT
Levi Strauss
LEVI
$8.63B
| $2.14M | ﹤0.01% |
91,800
-314,900
| -77% | -$6.69M |
|
|
SAND
2171
CALL
DELISTED
Sandstorm Gold
SAND
| $2.14M | ﹤0.01% |
170,800
-10,400
| -6% | -$111K |
|
2172
CALL
ZIM Integrated Shipping Services
ZIM
$3.23B
| $2.14M | ﹤0.01% |
157,800
+21,700
| +16% | +$329K |
|
2173
PUT
VICI Properties
VICI
$29B
| $2.14M | ﹤0.01% |
65,500
+43,000
| +191% | +$1.42M |
|
2174
Rambus
RMBS
$10.8B
| $2.13M | ﹤0.01% |
+20,443
| New | +$1.58M |
|
2175
Toyota
TM
$223B
| $2.13M | ﹤0.01% |
+11,142
| New | +$2.1M |
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.