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 | |
|---|---|---|---|---|---|---|
1226
CALL
Vale
VALE
$63.1B
| $10M | ﹤0.01% |
768,500
+314,100
| +69% | +$3.82M |
|
1227
CALL
Fastenal
FAST
$59.6B
| $10M | ﹤0.01% |
249,500
+13,200
| +6% | +$556K |
|
1228
Robinhood
HOOD
$84.5B
| $10M | ﹤0.01% |
+88,458
| New | +$11.5M |
|
1229
PUT
Southern Company
SO
$105B
| $9.95M | ﹤0.01% |
114,100
-23,400
| -17% | -$2.14M |
|
|
1230
PUT
Fastenal
FAST
$59.6B
| $9.94M | ﹤0.01% |
247,600
+19,600
| +9% | +$825K |
|
1231
CALL
Argan
AGX
$8.32B
| $9.87M | ﹤0.01% |
31,500
+13,200
| +72% | +$4.19M |
|
|
PSKY
1232
CALL
Paramount Skydance Corp
PSKY
$10.2B
| $9.86M | ﹤0.01% |
+735,800
| New | +$11.5M |
|
1233
CALL
NetEase
NTES
$84.8B
| $9.85M | ﹤0.01% |
71,600
-5,400
| -7% | -$767K |
|
1234
CALL
HSBC
HSBC
$355B
| $9.83M | ﹤0.01% |
125,000
+300
| +0.2% | +$21.5K |
|
1235
PUT
Skyworks Solutions
SWKS
$10.5B
| $9.82M | ﹤0.01% |
154,900
+34,000
| +28% | +$2.38M |
|
1236
CALL
Burlington
BURL
$23.4B
| $9.82M | ﹤0.01% |
34,000
-3,400
| -9% | -$922K |
|
1237
PUT
APA Corp
APA
$14.2B
| $9.8M | ﹤0.01% |
400,700
+43,500
| +12% | +$1.05M |
|
1238
PUT
International Paper
IP
$21.9B
| $9.79M | ﹤0.01% |
248,500
+192,600
| +345% | +$7.92M |
|
1239
CALL
Williams Companies
WMB
$86.7B
| $9.79M | ﹤0.01% |
162,800
-42,100
| -21% | -$2.55M |
|
1240
PUT
Madrigal Pharmaceuticals
MDGL
$11.8B
| $9.78M | ﹤0.01% |
+16,800
| New | +$8.58M |
|
1241
CALL
Viasat
VSAT
$11.6B
| $9.77M | ﹤0.01% |
283,400
+103,100
| +57% | +$3.64M |
|
1242
PUT
Sanofi
SNY
$104B
| $9.74M | ﹤0.01% |
201,000
+155,400
| +341% | +$7.7M |
|
1243
PUT
Shake Shack
SHAK
$2.84B
| $9.74M | ﹤0.01% |
120,000
-5,300
| -4% | -$467K |
|
1244
PUT
Kinross Gold
KGC
$32.6B
| $9.72M | ﹤0.01% |
345,200
+51,400
| +17% | +$1.34M |
|
1245
CALL
GSK
GSK
$104B
| $9.72M | ﹤0.01% |
198,200
+15,200
| +8% | +$709K |
|
1246
CALL
Alamos Gold
AGI
$13.9B
| $9.68M | ﹤0.01% |
250,900
-9,400
| -4% | -$328K |
|
|
SA
1247
CALL
Seabridge Gold
SA
$3.39B
| $9.66M | ﹤0.01% |
326,500
+81,700
| +33% | +$2.15M |
|
1248
PUT
GeneDx Holdings
WGS
$2.32B
| $9.65M | ﹤0.01% |
74,200
+9,000
| +14% | +$1.24M |
|
1249
PUT
Dutch Bros
BROS
$8.95B
| $9.64M | ﹤0.01% |
157,500
+8,200
| +5% | +$466K |
|
|
1250
PUT
Alamos Gold
AGI
$13.9B
| $9.64M | ﹤0.01% |
249,900
+65,900
| +36% | +$2.3M |
|
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.