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 | |
|---|---|---|---|---|---|---|
2976
Aehr Test Systems
AEHR
$4.02B
| $675K | ﹤0.01% |
+22,426
| New | +$486K |
|
2977
CALL
Biohaven
BHVN
$2.24B
| $674K | ﹤0.01% |
44,900
+23,500
| +110% | +$342K |
|
2978
FT Vest US Equity Moderate Buffer ETF January
GJAN
$439M
| $674K | ﹤0.01% |
+16,170
| New | +$660K |
|
2979
CALL
Radian Group
RDN
$4.92B
| $674K | ﹤0.01% |
+18,600
| New | +$648K |
|
2980
Robert Half
RHI
$4.48B
| $673K | ﹤0.01% |
19,814
-5,109
| -20% | -$192K |
|
2981
CALL
Sigma Lithium
SGML
$1.27B
| $670K | ﹤0.01% |
+104,600
| New | +$629K |
|
2982
CALL
Huntsman Corp
HUN
$1.81B
| $670K | ﹤0.01% |
74,600
+18,600
| +33% | +$195K |
|
2983
PUT
Finance of America Companies
FOA
$206M
| $666K | ﹤0.01% |
29,700
+6,000
| +25% | +$150K |
|
|
EMBJ
2984
Embraer S.A. ADS
EMBJ
$13.2B
| $666K | ﹤0.01% |
+11,010
| New | +$622K |
|
2985
CALL
Ivanhoe Electric
IE
$1.66B
| $664K | ﹤0.01% |
+52,900
| New | +$523K |
|
2986
PUT
Henry Schein
HSIC
$10B
| $664K | ﹤0.01% |
+10,000
| New | +$692K |
|
2987
3D Systems Corp
DDD
$601M
| $664K | ﹤0.01% |
228,832
+30,714
| +16% | +$63.3K |
|
|
TGB
2988
CALL
Trekor Metals
TGB
$3.08B
| $663K | ﹤0.01% |
156,800
+80,100
| +104% | +$272K |
|
2989
Kyndryl
KD
$3.04B
| $663K | ﹤0.01% |
+22,077
| New | +$758K |
|
2990
CALL
Microvast
MVST
$341M
| $663K | ﹤0.01% |
172,200
+46,600
| +37% | +$146K |
|
2991
Coursera
COUR
$1.53B
| $661K | ﹤0.01% |
+56,471
| New | +$613K |
|
2992
CALL
Green Plains
GPRE
$1.09B
| $661K | ﹤0.01% |
75,200
+17,800
| +31% | +$156K |
|
2993
PUT
Haemonetics
HAE
$4.11B
| $658K | ﹤0.01% |
+13,500
| New | +$836K |
|
2994
CALL
Ero Copper
ERO
$3.58B
| $657K | ﹤0.01% |
32,500
+20,400
| +169% | +$311K |
|
2995
Liberty Global Class A
LBTYA
$3.58B
| $657K | ﹤0.01% |
57,302
+26,895
| +88% | +$296K |
|
2996
Stratasys
SSYS
$779M
| $656K | ﹤0.01% |
58,603
-5,577
| -9% | -$60.1K |
|
2997
Coty
COTY
$2.42B
| $656K | ﹤0.01% |
162,367
+78,541
| +94% | +$360K |
|
2998
CALL
Option Care Health
OPCH
$3.61B
| $655K | ﹤0.01% |
+23,600
| New | +$683K |
|
2999
PUT
UWM Holdings
UWMC
$2.61B
| $655K | ﹤0.01% |
107,500
+14,100
| +15% | +$73.9K |
|
3000
CALL
Energizer
ENR
$1.55B
| $655K | ﹤0.01% |
+26,300
| New | +$687K |
|
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.