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 | |
|---|---|---|---|---|---|---|
3226
PUT
The Honest Company
HNST
$549M
| $460K | ﹤0.01% |
124,900
+36,000
| +40% | +$153K |
|
|
CWAN
3227
PUT
DELISTED
Clearwater Analytics
CWAN
| $460K | ﹤0.01% |
+25,500
| New | +$517K |
|
|
NNE
3228
Nano Nuclear Energy
NNE
$1.03B
| $459K | ﹤0.01% |
11,891
-22,866
| -66% | -$812K |
|
3229
CALL
Arvinas
ARVN
$579M
| $458K | ﹤0.01% |
53,800
+13,400
| +33% | +$102K |
|
3230
PUT
Carbon Collective Climate Solutions US Equity ETF
CCSO
$50.3M
| $458K | ﹤0.01% |
44,300
-9,300
| -17% | -$222K |
|
3231
CALL
Liberty Global Class A
LBTYA
$3.5B
| $457K | ﹤0.01% |
39,900
+18,000
| +82% | +$198K |
|
3232
Lumen
LUMN
$6.53B
| $457K | ﹤0.01% |
+74,611
| New | +$358K |
|
3233
FT Vest US Equity Deep Buffer ETF March
DMAR
$459M
| $456K | ﹤0.01% |
+11,186
| New | +$449K |
|
3234
CALL
Blackstone Secured Lending
BXSL
$5.63B
| $454K | ﹤0.01% |
+17,400
| New | +$523K |
|
3235
CALL
Hess Midstream
HESM
$5.19B
| $453K | ﹤0.01% |
13,100
-5,600
| -30% | -$222K |
|
3236
CALL
Ardagh Metal Packaging
AMBP
$3.01B
| $451K | ﹤0.01% |
+113,100
| New | +$450K |
|
3237
CALL
National Vision
EYE
$1.61B
| $450K | ﹤0.01% |
15,400
+5,100
| +50% | +$125K |
|
3238
PUT
Gaotu Techedu
GOTU
$434M
| $449K | ﹤0.01% |
137,800
-6,300
| -4% | -$22.9K |
|
|
DCH
3239
CALL
Dauch Corp
DCH
$1.62B
| $447K | ﹤0.01% |
+74,300
| New | +$398K |
|
3240
PUT
Rayonier
RYN
$6.39B
| $446K | ﹤0.01% |
+17,620
| New | +$423K |
|
3241
EVgo
EVGO
$497M
| $445K | ﹤0.01% |
94,109
+4,746
| +5% | +$18.4K |
|
|
INFA
3242
CALL
DELISTED
Informatica
INFA
| $445K | ﹤0.01% |
17,900
-52,500
| -75% | -$1.3M |
|
3243
Iridium Communications
IRDM
$5.29B
| $442K | ﹤0.01% |
+25,309
| New | +$625K |
|
3244
PUT
Vornado Realty Trust
VNO
$7.32B
| $442K | ﹤0.01% |
10,900
-32,300
| -75% | -$1.26M |
|
3245
TAL Education Group
TAL
$6.63B
| $442K | ﹤0.01% |
39,440
-46,241
| -54% | -$498K |
|
|
CNH
3246
CALL
CNH Industrial
CNH
$17B
| $439K | ﹤0.01% |
40,500
-3,400
| -8% | -$41.5K |
|
3247
PUT
Byrna Technologies
BYRN
$99.4M
| $439K | ﹤0.01% |
+19,800
| New | +$439K |
|
3248
CALL
Editas Medicine
EDIT
$450M
| $438K | ﹤0.01% |
+126,300
| New | +$353K |
|
3249
GoPro
GPRO
$113M
| $438K | ﹤0.01% |
+206,442
| New | +$307K |
|
3250
PUT
HDFC Bank
HDB
$119B
| $437K | ﹤0.01% |
+12,800
| New | +$472K |
|
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.