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 | |
|---|---|---|---|---|---|---|
3176
Sarepta Therapeutics
SRPT
$1.9B
| $503K | ﹤0.01% |
+26,078
| New | +$465K |
|
3177
PUT
Sigma Lithium
SGML
$1.34B
| $500K | ﹤0.01% |
+78,000
| New | +$469K |
|
3178
RUM Group Inc
RUM
$1.99B
| $500K | ﹤0.01% |
69,013
+27,722
| +67% | +$227K |
|
3179
PUT
Children's Place
PLCE
$54.9M
| $499K | ﹤0.01% |
80,400
+17,600
| +28% | +$95.6K |
|
3180
Huntsman Corp
HUN
$1.79B
| $499K | ﹤0.01% |
+55,534
| New | +$583K |
|
|
KEEL
3181
Keel Infrastructure Corp
KEEL
$2.24B
| $497K | ﹤0.01% |
+176,347
| New | +$274K |
|
3182
CALL
Target Hospitality
TH
$1.66B
| $497K | ﹤0.01% |
58,600
+18,100
| +45% | +$149K |
|
|
AEVA
3183
Aeva Technologies
AEVA
$1.7B
| $496K | ﹤0.01% |
+34,224
| New | +$649K |
|
3184
CALL
Quantum-Si Incorporated
QSI
$181M
| $496K | ﹤0.01% |
351,800
+113,400
| +48% | +$164K |
|
3185
CALL
Kulicke & Soffa
KLIC
$5B
| $496K | ﹤0.01% |
12,200
+1,500
| +14% | +$55.6K |
|
3186
CoreCivic
CXW
$3.38B
| $493K | ﹤0.01% |
+24,248
| New | +$502K |
|
3187
PUT
NCR Voyix
VYX
$1.1B
| $493K | ﹤0.01% |
39,300
+12,100
| +44% | +$159K |
|
3188
CALL
PACS Group
PACS
$7.28B
| $493K | ﹤0.01% |
+35,900
| New | +$421K |
|
3189
CALL
Methanex
MEOH
$4.15B
| $489K | ﹤0.01% |
+12,300
| New | +$437K |
|
3190
CALL
Viavi Solutions
VIAV
$10.4B
| $489K | ﹤0.01% |
+38,500
| New | +$423K |
|
|
NAK
3191
CALL
Northern Dynasty Minerals
NAK
$969M
| $485K | ﹤0.01% |
+404,400
| New | +$434K |
|
|
VRNT
3192
CALL
DELISTED
Verint Systems
VRNT
| $484K | ﹤0.01% |
23,900
-155,300
| -87% | -$3.2M |
|
3193
PUT
Caleres
CAL
$460M
| $484K | ﹤0.01% |
37,100
+4,600
| +14% | +$66.6K |
|
3194
CALL
Gaotu Techedu
GOTU
$432M
| $483K | ﹤0.01% |
148,300
+51,500
| +53% | +$187K |
|
3195
PUT
Marqeta
MQ
$1.61B
| $482K | ﹤0.01% |
22,800
+500
| +2% | +$11.8K |
|
3196
Unusual Machines
UMAC
$1.41B
| $481K | ﹤0.01% |
31,862
-5,250
| -14% | -$55.3K |
|
3197
CALL
STAAR Surgical
STAA
$1.25B
| $481K | ﹤0.01% |
+17,900
| New | +$427K |
|
|
CGAU
3198
CALL
Centerra Gold
CGAU
$4.3B
| $480K | ﹤0.01% |
+44,700
| New | +$357K |
|
3199
CALL
Tronox
TROX
$971M
| $479K | ﹤0.01% |
+119,200
| New | +$545K |
|
|
SFIX
3200
CALL
Stitch Fix
SFIX
$484M
| $478K | ﹤0.01% |
109,900
+53,100
| +93% | +$262K |
|
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.