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 | |
|---|---|---|---|---|---|---|
1251
PUT
CSX Corp
CSX
$92.8B
| $8.25M | ﹤0.01% |
232,300
+20,000
| +9% | +$683K |
|
1252
CALL
Mobileye
MBLY
$7.57B
| $8.24M | ﹤0.01% |
583,800
-364,700
| -38% | -$5.42M |
|
1253
PUT
Ally Financial
ALLY
$13.6B
| $8.24M | ﹤0.01% |
210,200
+24,300
| +13% | +$974K |
|
1254
CALL
Travelers Companies
TRV
$77.2B
| $8.24M | ﹤0.01% |
29,500
-2,200
| -7% | -$589K |
|
1255
PUT
Kohl's
KSS
$2.19B
| $8.23M | ﹤0.01% |
535,600
+118,500
| +28% | +$1.58M |
|
1256
PUT
Baker Hughes
BKR
$63B
| $8.21M | ﹤0.01% |
168,500
-4,500
| -3% | -$199K |
|
1257
PUT
Teladoc Health
TDOC
$1.26B
| $8.2M | ﹤0.01% |
1,060,300
+212,000
| +25% | +$1.65M |
|
1258
PUT
Grab
GRAB
$15.1B
| $8.19M | ﹤0.01% |
1,360,200
+519,600
| +62% | +$2.76M |
|
1259
CALL
Agilent Technologies
A
$41.9B
| $8.15M | ﹤0.01% |
63,500
-444,200
| -87% | -$53.7M |
|
1260
PUT
Biogen
BIIB
$30.9B
| $8.14M | ﹤0.01% |
58,100
+14,500
| +33% | +$1.96M |
|
|
1261
CALL
Teladoc Health
TDOC
$1.26B
| $8.13M | ﹤0.01% |
1,052,100
+428,500
| +69% | +$3.34M |
|
1262
CALL
ClearShares Piton Intermediate Fixed Income ETF
PIFI
$98M
| $8.1M | ﹤0.01% |
236,600
-392,300
| -62% | -$37.5M |
|
1263
PUT
Diageo
DEO
$52.8B
| $8.1M | ﹤0.01% |
84,900
+38,800
| +84% | +$4.07M |
|
1264
CALL
PennyMac Financial
PFSI
$4B
| $8.1M | ﹤0.01% |
65,400
+26,700
| +69% | +$2.89M |
|
1265
PUT
Applied Optoelectronics
AAOI
$11B
| $8.1M | ﹤0.01% |
312,400
+154,900
| +98% | +$3.96M |
|
1266
CALL
Schwab US Broad Market ETF
SCHB
$45.2B
| $8.1M | ﹤0.01% |
292,800
-20,900
| -7% | -$517K |
|
1267
PUT
Leidos
LDOS
$17.6B
| $8.09M | ﹤0.01% |
42,800
+8,900
| +26% | +$1.55M |
|
1268
PUT
Jefferies Financial Group
JEF
$12.9B
| $8.05M | ﹤0.01% |
123,100
+54,700
| +80% | +$3.34M |
|
1269
CALL
Toronto Dominion Bank
TD
$204B
| $8.03M | ﹤0.01% |
100,500
-16,700
| -14% | -$1.25M |
|
1270
PUT
Ares Management
ARES
$32.1B
| $8.03M | ﹤0.01% |
50,200
+29,900
| +147% | +$5.39M |
|
1271
CALL
FMC
FMC
$1.28B
| $8.02M | ﹤0.01% |
238,400
+82,700
| +53% | +$3.23M |
|
1272
CALL
Vail Resorts
MTN
$5.29B
| $8.02M | ﹤0.01% |
53,600
+20,500
| +62% | +$3.18M |
|
1273
CALL
American Superconductor
AMSC
$1.56B
| $8M | ﹤0.01% |
134,700
+20,400
| +18% | +$1.02M |
|
1274
CALL
Novartis
NVS
$290B
| $7.99M | ﹤0.01% |
62,300
+25,000
| +67% | +$3.05M |
|
1275
United States Natural Gas Fund
UNG
$489M
| $7.98M | ﹤0.01% |
610,249
+438,464
| +255% | +$5.87M |
|
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.