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 | |
|---|---|---|---|---|---|---|
126
PUT
lululemon athletica
LULU
$14.5B
| $257M | 0.09% |
1,446,700
+808,900
| +127% | +$162M |
|
|
127
Invesco QQQ Trust
QQQ
$479B
| $255M | 0.09% |
425,122
+355,103
| +507% | +$203M |
|
128
PUT
Mastercard
MA
$493B
| $254M | 0.09% |
446,500
-11,300
| -2% | -$6.49M |
|
129
PUT
Chipotle Mexican Grill
CMG
$40.7B
| $253M | 0.09% |
6,444,600
+3,529,700
| +121% | +$159M |
|
|
130
CALL
Mastercard
MA
$493B
| $250M | 0.09% |
439,700
+130,400
| +42% | +$74.9M |
|
131
CALL
Dell
DELL
$296B
| $247M | 0.09% |
1,744,000
+300,300
| +21% | +$39M |
|
132
PUT
Uber
UBER
$159B
| $247M | 0.09% |
2,518,800
-122,300
| -5% | -$11.4M |
|
133
PUT
Snowflake
SNOW
$116B
| $247M | 0.09% |
1,093,000
-101,400
| -8% | -$21.8M |
|
134
CALL
Applied Materials
AMAT
$415B
| $243M | 0.09% |
1,186,300
+229,500
| +24% | +$41.6M |
|
135
CALL
iShares Silver Trust
SLV
$32B
| $241M | 0.09% |
5,696,700
-674,600
| -11% | -$24.2M |
|
136
CALL
Citigroup
C
$227B
| $239M | 0.09% |
2,353,200
-166,400
| -7% | -$15.8M |
|
137
CALL
Mercado Libre
MELI
$92.5B
| $234M | 0.09% |
100,000
+25,800
| +35% | +$61.9M |
|
138
CALL
Iris Energy
IREN
$13.8B
| $233M | 0.08% |
4,955,200
+2,425,400
| +96% | +$58.9M |
|
139
PUT
IBM
IBM
$223B
| $229M | 0.08% |
811,400
+290,900
| +56% | +$76.1M |
|
|
OKLO
140
PUT
Oklo
OKLO
$8.28B
| $229M | 0.08% |
2,050,800
+726,900
| +55% | +$56.9M |
|
141
CALL
MongoDB
MDB
$33.5B
| $229M | 0.08% |
736,600
+184,300
| +33% | +$47.4M |
|
|
142
PUT
MongoDB
MDB
$33.5B
| $228M | 0.08% |
733,100
+177,100
| +32% | +$45.5M |
|
143
PUT
Synopsys
SNPS
$78.8B
| $223M | 0.08% |
451,000
+367,900
| +443% | +$208M |
|
144
PUT
ON Semiconductor
ON
$31.1B
| $221M | 0.08% |
4,473,600
+3,638,500
| +436% | +$192M |
|
145
CALL
Walmart Inc
WMT
$897B
| $220M | 0.08% |
2,139,200
+330,800
| +18% | +$32.9M |
|
146
CALL
Marvell Technology
MRVL
$187B
| $220M | 0.08% |
2,615,500
+848,700
| +48% | +$62.5M |
|
147
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$6.05B
| $220M | 0.08% |
3,812,100
-10,000
| -0.3% | -$1.05M |
|
148
PUT
Burlington
BURL
$23.4B
| $220M | 0.08% |
862,500
+713,800
| +480% | +$194M |
|
149
PUT
Arm
ARM
$286B
| $219M | 0.08% |
1,546,600
+181,800
| +13% | +$26.5M |
|
150
PUT
Bank of America
BAC
$447B
| $217M | 0.08% |
4,214,100
+358,600
| +9% | +$17.5M |
|
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.