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 | |
|---|---|---|---|---|---|---|
4001
PUT
Gold Royalty Corp
GROY
$699M
| $206K | ﹤0.01% |
+51,100
| New | +$196K |
|
|
UROY
4002
PUT
Uranium Royalty Corp
UROY
$1.58B
| $206K | ﹤0.01% |
+58,300
| New | +$228K |
|
4003
PUT
Green Dot
GDOT
$745M
| $206K | ﹤0.01% |
+16,100
| New | +$200K |
|
|
FRMM
4004
PUT
Forum Markets
FRMM
$79.5M
| $206K | ﹤0.01% |
+42,000
| New | +$593K |
|
|
NAVN
4005
CALL
Navan Inc
NAVN
$7.4B
| $205K | ﹤0.01% |
+12,000
| New | +$191K |
|
|
CNH
4006
CALL
CNH Industrial
CNH
$17.5B
| $205K | ﹤0.01% |
22,200
-18,300
| -45% | -$183K |
|
|
OSG
4007
Octave Specialty Group
OSG
$222M
| $205K | ﹤0.01% |
26,303
-71,119
| -73% | -$608K |
|
4008
CALL
PubMatic
PUBM
$810M
| $204K | ﹤0.01% |
23,000
-1,600
| -7% | -$13.9K |
|
4009
CALL
Geospace Technologies
GEOS
$75.7M
| $203K | ﹤0.01% |
+12,000
| New | +$241K |
|
|
LOVE
4010
PUT
LoveSac
LOVE
$261M
| $202K | ﹤0.01% |
+13,700
| New | +$194K |
|
4011
CALL
Leggett & Platt
LEG
$1.31B
| $201K | ﹤0.01% |
+18,300
| New | +$180K |
|
4012
Genco Shipping & Trading
GNK
$1.1B
| $201K | ﹤0.01% |
+10,915
| New | +$192K |
|
4013
Digital Turbine
APPS
$1.74B
| $200K | ﹤0.01% |
40,047
-41,884
| -51% | -$237K |
|
4014
AbCellera Biologics
ABCL
$2.12B
| – | – |
-92,973
| Closed | -$415K |
|
4015
Arch Capital
ACGL
$33.6B
| – | – |
-12,136
| Closed | -$1.11M |
|
4016
CALL
Acadia Healthcare
ACHC
$2.94B
| – | – |
-14,100
| Closed | -$349K |
|
4017
Adobe
ADBE
$105B
| – | – |
-27,302
| Closed | -$9.29M |
|
4018
CALL
Agree Realty
ADC
$9.41B
| – | – |
-15,900
| Closed | -$1.13M |
|
4019
Analog Devices
ADI
$190B
| – | – |
-48,403
| Closed | -$12.2M |
|
4020
CALL
ADT
ADT
$5.58B
| – | – |
-138,600
| Closed | -$1.21M |
|
4021
Atlas Energy Solutions
AESI
$1.41B
| – | – |
-155,579
| Closed | -$1.57M |
|
|
4022
PUT
Atlas Energy Solutions
AESI
$1.41B
| – | – |
-154,200
| Closed | -$1.75M |
|
4023
Affirm
AFRM
$25.2B
| – | – |
-182,984
| Closed | -$13.2M |
|
4024
ProShares Ultra Silver
AGQ
$1.36B
| – | – |
-80,584
| Closed | -$6.14M |
|
4025
C3.ai
AI
$1.59B
| – | – |
-15,481
| Closed | -$247K |
|
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.