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 | |
|---|---|---|---|---|---|---|
1076
CALL
Trane Technologies
TT
$105B
| $11.6M | ﹤0.01% |
27,500
-4,400
| -14% | -$1.88M |
|
1077
CALL
Fastenal
FAST
$58.9B
| $11.6M | ﹤0.01% |
236,300
-78,600
| -25% | -$3.71M |
|
1078
Li Auto
LI
$12B
| $11.6M | ﹤0.01% |
+457,192
| New | +$11.8M |
|
1079
CALL
Emcor
EME
$36.7B
| $11.6M | ﹤0.01% |
17,800
+5,300
| +42% | +$3.22M |
|
1080
CALL
Archer Aviation
ACHR
$5.37B
| $11.6M | ﹤0.01% |
1,206,700
-30,800
| -2% | -$305K |
|
1081
PUT
Ollie's Bargain Outlet
OLLI
$4.7B
| $11.5M | ﹤0.01% |
89,700
+50,600
| +129% | +$6.72M |
|
1082
CALL
Uranium Energy
UEC
$5.54B
| $11.5M | ﹤0.01% |
859,800
+580,900
| +208% | +$5.81M |
|
1083
PUT
MGM Resorts International
MGM
$11.1B
| $11.5M | ﹤0.01% |
330,400
-89,300
| -21% | -$3.28M |
|
1084
PUT
Energy Transfer Partners
ET
$71.5B
| $11.4M | ﹤0.01% |
666,100
+52,800
| +9% | +$925K |
|
1085
PUT
Nutanix
NTNX
$18.4B
| $11.4M | ﹤0.01% |
153,600
-45,900
| -23% | -$3.37M |
|
1086
CALL
Casey's General Stores
CASY
$31.6B
| $11.4M | ﹤0.01% |
20,200
+500
| +3% | +$262K |
|
1087
CALL
Edwards Lifesciences
EW
$53.4B
| $11.4M | ﹤0.01% |
146,300
-25,400
| -15% | -$1.98M |
|
1088
PUT
Five Below
FIVE
$13.4B
| $11.4M | ﹤0.01% |
73,500
-47,300
| -39% | -$6.69M |
|
|
BNY
1089
PUT
Bank of New York Mellon
BNY
$110B
| $11.3M | ﹤0.01% |
104,000
+28,200
| +37% | +$2.88M |
|
1090
PUT
Toyota
TM
$223B
| $11.3M | ﹤0.01% |
59,300
+7,700
| +15% | +$1.45M |
|
1091
PUT
Sherwin-Williams
SHW
$87.8B
| $11.3M | ﹤0.01% |
32,700
+17,000
| +108% | +$5.99M |
|
1092
CALL
Alnylam Pharmaceuticals
ALNY
$30.4B
| $11.3M | ﹤0.01% |
24,800
+8,600
| +53% | +$3.5M |
|
1093
CALL
-1x Short VIX Futures ETF
SVIX
$171M
| $11.3M | ﹤0.01% |
528,900
-41,500
| -7% | -$771K |
|
1094
CALL
Transmedics
TMDX
$3.11B
| $11.3M | ﹤0.01% |
100,400
-27,700
| -22% | -$3.24M |
|
1095
PUT
AstraZeneca
AZN
$244B
| $11.2M | ﹤0.01% |
73,200
-10,700
| -13% | -$1.62M |
|
|
1096
PUT
Fastenal
FAST
$58.9B
| $11.2M | ﹤0.01% |
228,000
-2,200
| -1% | -$104K |
|
1097
PUT
SL Green Realty
SLG
$4.08B
| $11.2M | ﹤0.01% |
186,800
+7,700
| +4% | +$456K |
|
1098
PUT
Brinker International
EAT
$10.2B
| $11.1M | ﹤0.01% |
87,700
+31,600
| +56% | +$4.93M |
|
1099
PUT
Pultegroup
PHM
$24.9B
| $11.1M | ﹤0.01% |
83,900
+13,500
| +19% | +$1.68M |
|
1100
PUT
QuantumScape Corp
QS
$3.79B
| $11.1M | ﹤0.01% |
899,300
+328,100
| +57% | +$3.2M |
|
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.