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 Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2151
PUT
Insmed
INSM
$29B
| $2.84M | ﹤0.01% |
16,300
-35,000
| -68% | -$6.39M |
|
|
NGD
2152
CALL
DELISTED
New Gold Inc
NGD
| $2.83M | ﹤0.01% |
325,300
-97,600
| -23% | -$735K |
|
2153
PUT
Tidewater
TDW
$4.54B
| $2.82M | ﹤0.01% |
55,900
+2,400
| +4% | +$127K |
|
2154
CarMax
KMX
$8.26B
| $2.82M | ﹤0.01% |
72,967
-79,360
| -52% | -$3.17M |
|
2155
PUT
Public Service Enterprise Group
PEG
$37.5B
| $2.82M | ﹤0.01% |
35,100
-20,300
| -37% | -$1.66M |
|
2156
PUT
Viking Therapeutics
VKTX
$3.94B
| $2.82M | ﹤0.01% |
80,100
-38,100
| -32% | -$1.35M |
|
2157
PUT
Dropbox
DBX
$7.41B
| $2.82M | ﹤0.01% |
101,300
-42,100
| -29% | -$1.23M |
|
2158
CALL
Starwood Property Trust
STWD
$6.17B
| $2.81M | ﹤0.01% |
156,300
-70,600
| -31% | -$1.3M |
|
|
EMBJ
2159
CALL
Embraer S.A. ADS
EMBJ
$12.7B
| $2.81M | ﹤0.01% |
43,700
+10,500
| +32% | +$658K |
|
2160
PUT
Sportradar
SRAD
$3.93B
| $2.81M | ﹤0.01% |
118,300
+97,300
| +463% | +$2.34M |
|
2161
CALL
Guardant Health
GH
$22.2B
| $2.81M | ﹤0.01% |
27,500
-6,300
| -19% | -$564K |
|
2162
PUT
Amkor Technology
AMKR
$13.5B
| $2.8M | ﹤0.01% |
70,900
+43,200
| +156% | +$1.54M |
|
2163
CALL
Braze
BRZE
$3.18B
| $2.8M | ﹤0.01% |
81,600
+45,800
| +128% | +$1.36M |
|
|
VOYG
2164
CALL
Voyager Technologies
VOYG
$2.6B
| $2.79M | ﹤0.01% |
+106,800
| New | +$2.9M |
|
2165
CALL
JetBlue
JBLU
$2.19B
| $2.79M | ﹤0.01% |
613,200
+21,600
| +4% | +$98.5K |
|
2166
Asana
ASAN
$2.13B
| $2.78M | ﹤0.01% |
202,934
-36,021
| -15% | -$495K |
|
2167
PUT
NextNav
NN
$2.43B
| $2.78M | ﹤0.01% |
167,100
+24,000
| +17% | +$341K |
|
2168
VF Corp
VFC
$5.81B
| $2.78M | ﹤0.01% |
153,745
-99,105
| -39% | -$1.61M |
|
2169
PUT
Leidos
LDOS
$17.7B
| $2.78M | ﹤0.01% |
15,400
-27,400
| -64% | -$5.19M |
|
2170
PUT
ASP Isotopes
ASPI
$544M
| $2.78M | ﹤0.01% |
+518,800
| New | +$4.13M |
|
2171
CALL
Dave & Buster's
PLAY
$349M
| $2.78M | ﹤0.01% |
171,200
-37,700
| -18% | -$631K |
|
2172
Altria Group
MO
$109B
| $2.77M | ﹤0.01% |
48,045
-45,330
| -49% | -$2.74M |
|
2173
PUT
Warrior Met Coal
HCC
$5.16B
| $2.77M | ﹤0.01% |
31,400
| – | – |
|
2174
ZIM Integrated Shipping Services
ZIM
$2.96B
| $2.77M | ﹤0.01% |
130,406
+60,719
| +87% | +$1.02M |
|
2175
Elastic
ESTC
$7.94B
| $2.77M | ﹤0.01% |
36,659
+8,940
| +32% | +$729K |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.