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 | |
|---|---|---|---|---|---|---|
2301
CALL
Restaurant Brands International
QSR
$25.8B
| $2.29M | ﹤0.01% |
33,600
-24,400
| -42% | -$1.68M |
|
2302
CALL
Vicor
VICR
$10.3B
| $2.29M | ﹤0.01% |
+20,900
| New | +$1.78M |
|
2303
CALL
McCormick & Company Non-Voting
MKC
$14.2B
| $2.29M | ﹤0.01% |
33,600
-3,400
| -9% | -$226K |
|
2304
International Paper
IP
$21.6B
| $2.28M | ﹤0.01% |
+57,769
| New | +$2.38M |
|
2305
CALL
Guidewire Software
GWRE
$14.3B
| $2.27M | ﹤0.01% |
11,300
-7,700
| -41% | -$1.7M |
|
2306
PUT
Calumet Specialty Products
CLMT
$4.13B
| $2.27M | ﹤0.01% |
114,200
-30,100
| -21% | -$579K |
|
2307
CALL
Skywest
SKYW
$4.12B
| $2.26M | ﹤0.01% |
+22,500
| New | +$2.25M |
|
2308
Direxion Daily S&P 500 Bear 1X ETF
SPDN
$199M
| $2.26M | ﹤0.01% |
+239,431
| New | +$2.28M |
|
2309
PUT
Red Cat Holdings
RCAT
$1.6B
| $2.26M | ﹤0.01% |
284,700
+84,100
| +42% | +$805K |
|
2310
PUT
Scorpio Tankers
STNG
$3.79B
| $2.26M | ﹤0.01% |
44,400
-3,100
| -7% | -$177K |
|
2311
CALL
Magna International
MGA
$18.6B
| $2.25M | ﹤0.01% |
42,300
-22,600
| -35% | -$1.1M |
|
2312
PUT
First Horizon
FHN
$12.1B
| $2.25M | ﹤0.01% |
94,300
-12,000
| -11% | -$268K |
|
2313
CALL
Owens Corning
OC
$12.2B
| $2.25M | ﹤0.01% |
20,100
+5,200
| +35% | +$610K |
|
2314
PUT
Universal Health Services
UHS
$9.87B
| $2.25M | ﹤0.01% |
10,300
-4,400
| -30% | -$973K |
|
2315
CALL
Boot Barn
BOOT
$4.91B
| $2.24M | ﹤0.01% |
12,700
-37,600
| -75% | -$7.01M |
|
2316
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$552M
| $2.24M | ﹤0.01% |
10,849
-10,026
| -48% | -$1.72M |
|
2317
PUT
Mid-America Apartment Communities
MAA
$15.2B
| $2.24M | ﹤0.01% |
16,100
-4,100
| -20% | -$546K |
|
2318
PUT
Viper Energy
VNOM
$15.3B
| $2.23M | ﹤0.01% |
+57,800
| New | +$2.19M |
|
2319
PUT
C3.ai
AI
$1.58B
| $2.23M | ﹤0.01% |
165,400
-368,200
| -69% | -$5.87M |
|
|
SERV
2320
PUT
Serve Robotics
SERV
$434M
| $2.23M | ﹤0.01% |
214,700
+47,100
| +28% | +$566K |
|
|
ABVX
2321
Abivax
ABVX
$11.1B
| $2.23M | ﹤0.01% |
+16,519
| New | +$1.8M |
|
2322
PUT
Stride
LRN
$3.23B
| $2.23M | ﹤0.01% |
34,300
-16,300
| -32% | -$1.48M |
|
2323
CALL
Virgin Galactic
SPCE
$495M
| $2.22M | ﹤0.01% |
691,400
-247,600
| -26% | -$933K |
|
2324
CALL
Delek US
DK
$3.99B
| $2.22M | ﹤0.01% |
74,700
+21,100
| +39% | +$753K |
|
2325
CALL
Cinemark Holdings
CNK
$4.24B
| $2.21M | ﹤0.01% |
95,100
-27,000
| -22% | -$710K |
|
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.