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 | |
|---|---|---|---|---|---|---|
2176
PUT
Robert Half
RHI
$4.25B
| $2.13M | ﹤0.01% |
62,600
+22,300
| +55% | +$837K |
|
2177
PUT
Impinj
PI
$5.46B
| $2.11M | ﹤0.01% |
11,700
+600
| +5% | +$94.6K |
|
2178
CALL
Guardant Health
GH
$21.4B
| $2.11M | ﹤0.01% |
33,800
+22,800
| +207% | +$1.24M |
|
2179
CALL
Owens Corning
OC
$12.3B
| $2.11M | ﹤0.01% |
14,900
-3,300
| -18% | -$484K |
|
2180
PUT
StoneCo
STNE
$2.49B
| $2.1M | ﹤0.01% |
111,100
-38,600
| -26% | -$614K |
|
2181
PUT
Scholar Rock
SRRK
$6.46B
| $2.1M | ﹤0.01% |
+56,400
| New | +$1.97M |
|
2182
CALL
Albertsons Companies
ACI
$6.02B
| $2.09M | ﹤0.01% |
119,200
+2,300
| +2% | +$45.1K |
|
2183
CALL
Knight Transportation
KNX
$11.9B
| $2.09M | ﹤0.01% |
52,800
+26,000
| +97% | +$1.13M |
|
2184
PUT
Clover Health Investments
CLOV
$2.38B
| $2.09M | ﹤0.01% |
681,700
+317,000
| +87% | +$905K |
|
|
PPTA
2185
CALL
Perpetua Resources
PPTA
$3.1B
| $2.09M | ﹤0.01% |
+103,100
| New | +$1.74M |
|
2186
Bitdeer Technologies
BTDR
$2.38B
| $2.08M | ﹤0.01% |
+121,821
| New | +$1.71M |
|
|
VNET
2187
CALL
VNET Group
VNET
$2.12B
| $2.08M | ﹤0.01% |
201,500
+158,600
| +370% | +$1.34M |
|
2188
CALL
Warrior Met Coal
HCC
$4.98B
| $2.08M | ﹤0.01% |
32,700
+14,200
| +77% | +$811K |
|
2189
CALL
Aurora
AUR
$13.4B
| $2.08M | ﹤0.01% |
385,900
+222,100
| +136% | +$1.3M |
|
2190
PUT
Huntington Bancshares
HBAN
$36.1B
| $2.08M | ﹤0.01% |
120,400
+63,100
| +110% | +$1.08M |
|
2191
PUT
FIVE9
FIVN
$2.53B
| $2.08M | ﹤0.01% |
85,800
-41,900
| -33% | -$1.11M |
|
2192
PUT
Red Cat Holdings
RCAT
$1.56B
| $2.08M | ﹤0.01% |
200,600
-4,800
| -2% | -$44.8K |
|
2193
Colgate-Palmolive
CL
$74.1B
| $2.08M | ﹤0.01% |
+25,959
| New | +$2.21M |
|
2194
PUT
Fastly Inc
FSLY
$4.78B
| $2.08M | ﹤0.01% |
242,700
-2,500
| -1% | -$18.5K |
|
|
LAC
2195
Lithium Americas
LAC
$1.24B
| $2.07M | ﹤0.01% |
363,391
+185,296
| +104% | +$586K |
|
2196
PUT
Rapid7
RPD
$929M
| $2.07M | ﹤0.01% |
110,600
+50,600
| +84% | +$1.07M |
|
2197
PagSeguro Digital
PAGS
$2.43B
| $2.07M | ﹤0.01% |
207,131
+107,511
| +108% | +$968K |
|
2198
CALL
Leonardo DRS
DRS
$11.9B
| $2.07M | ﹤0.01% |
45,600
+13,100
| +40% | +$571K |
|
2199
CALL
Icon
ICLR
$12.9B
| $2.06M | ﹤0.01% |
+11,800
| New | +$1.97M |
|
2200
PUT
Flex
FLEX
$45.9B
| $2.06M | ﹤0.01% |
35,600
-8,100
| -19% | -$430K |
|
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.