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 | Miscellaneous | 98.46% |
| 2 | Consumer Discretionary | 0.39% |
| 3 | Technology | 0.33% |
| 4 | Communication Services | 0.22% |
| 5 | Industrials | 0.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
|
51
CALL
Pinduoduo
PDD
$116B
| $873M | 0.32% |
6,608,800
+4,352,000
| +193% | +$515M |
2020 Q1
22 quarters
|
|
52
PUT
Goldman Sachs
GS
$261B
| $860M | 0.31% |
1,079,800
-14,900
| -1% | -$11M |
2018 Q4
27 quarters
|
|
53
CALL
TSMC
TSM
$2.35T
| $848M | 0.31% |
3,037,700
+640,900
| +27% | +$157M |
2020 Q3
20 quarters
|
|
|
54
CALL
Goldman Sachs
GS
$261B
| $846M | 0.31% |
1,062,000
-25,800
| -2% | -$19.1M |
2018 Q4
27 quarters
|
|
|
55
PUT
Boeing
BA
$150B
| $795M | 0.29% |
3,684,100
+1,102,300
| +43% | +$249M |
2018 Q4
27 quarters
|
|
56
PUT
Eli Lilly
LLY
$1.05T
| $789M | 0.29% |
1,034,300
+336,000
| +48% | +$250M |
2018 Q4
27 quarters
|
|
|
57
PUT
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$44.4B
| $742M | 0.27% |
1,599,500
-356,700
| -18% | -$161M |
2018 Q4
27 quarters
|
|
58
PUT
VanEck Gold Miners ETF
GDX
$26.7B
| $726M | 0.26% |
3,950,000
+606,800
| +18% | +$36.5M |
2018 Q4
27 quarters
|
|
59
CALL
CrowdStrike
CRWD
$282B
| $698M | 0.25% |
5,691,200
+38,000
| +0.7% | +$4.32M |
2020 Q1
22 quarters
|
|
|
60
PUT
CrowdStrike
CRWD
$282B
| $681M | 0.25% |
5,555,600
-268,400
| -5% | -$30.5M |
2020 Q1
22 quarters
|
|
61
PUT
Robinhood
HOOD
$98B
| $654M | 0.24% |
4,568,900
+832,000
| +22% | +$90.7M |
2022 Q2
13 quarters
|
|
62
PUT
ASML
ASML
$684B
| $646M | 0.23% |
667,500
+167,400
| +33% | +$132M |
2022 Q3
12 quarters
|
|
63
PUT
Micron Technology
MU
$1.16T
| $646M | 0.23% |
3,860,700
+537,800
| +16% | +$68.8M |
2018 Q4
27 quarters
|
|
64
CALL
JPMorgan Chase
JPM
$885B
| $621M | 0.23% |
1,968,300
+206,000
| +12% | +$61.3M |
2018 Q4
27 quarters
|
|
|
65
PUT
JPMorgan Chase
JPM
$885B
| $621M | 0.23% |
1,968,000
+152,900
| +8% | +$45.5M |
2018 Q4
27 quarters
|
|
66
CALL
Berkshire Hathaway Class B
BRK.B
$1.1T
| $620M | 0.23% |
1,233,600
+35,300
| +3% | +$17.1M |
2024 Q1
6 quarters
|
|
|
67
CALL
Micron Technology
MU
$1.16T
| $620M | 0.23% |
3,706,300
+233,000
| +7% | +$29.8M |
2018 Q4
27 quarters
|
|
|
68
PUT
Berkshire Hathaway Class B
BRK.B
$1.1T
| $604M | 0.22% |
1,200,800
-3,200
| -0.3% | -$1.55M |
2024 Q1
6 quarters
|
|
69
CALL
Adobe
ADBE
$94.3B
| $585M | 0.21% |
1,658,300
+773,500
| +87% | +$277M |
2018 Q4
27 quarters
|
|
70
PUT
Booking.com
BKNG
$120B
| $578M | 0.21% |
2,675,000
-1,067,500
| -29% | -$238M |
2018 Q4
27 quarters
|
|
71
CALL
Carvana
CVNA
$45.9B
| $568M | 0.21% |
7,525,500
-481,500
| -6% | -$34.4M |
2020 Q3
20 quarters
|
|
|
72
CALL
VanEck Gold Miners ETF
GDX
$26.7B
| $529M | 0.19% |
3,183,600
+462,600
| +17% | +$27.9M |
2018 Q4
27 quarters
|
|
|
73
CALL
ASML
ASML
$684B
| $518M | 0.19% |
535,500
+128,600
| +32% | +$101M |
2022 Q3
12 quarters
|
|
74
PUT
Spotify
SPOT
$109B
| $517M | 0.19% |
741,100
+214,400
| +41% | +$150M |
2018 Q4
27 quarters
|
|
|
75
PUT
Adobe
ADBE
$94.3B
| $501M | 0.18% |
1,419,300
+524,200
| +59% | +$188M |
2018 Q4
27 quarters
|
|
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's Q3 2025 filing shows 783 new, 1,843 increased, 923 reduced and 492 closed positions. Its largest new stake was Netflix: 666,120 shares worth $79.9M. The largest sale was Apple, an estimated $167M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 99% a quarter earlier, followed by Consumer Discretionary and Technology.
- 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.