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 | |
|---|---|---|---|---|---|---|
1901
PUT
Vital Farms
VITL
$474M
| $3.25M | ﹤0.01% |
79,100
+17,100
| +28% | +$743K |
|
1902
CALL
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$4.19B
| $3.25M | ﹤0.01% |
50,100
+16,200
| +48% | +$968K |
|
1903
KKR & Co
KKR
$102B
| $3.23M | ﹤0.01% |
24,878
-39,757
| -62% | -$5.64M |
|
1904
PUT
AMC Entertainment Holdings
AMC
$2.23B
| $3.23M | ﹤0.01% |
1,112,200
-30,500
| -3% | -$90.6K |
|
1905
Mobileye
MBLY
$7.59B
| $3.22M | ﹤0.01% |
228,263
+194,889
| +584% | +$2.9M |
|
1906
PUT
Barclays
BCS
$94.5B
| $3.22M | ﹤0.01% |
155,600
+77,400
| +99% | +$1.53M |
|
1907
PUT
Transocean
RIG
$6.46B
| $3.21M | ﹤0.01% |
1,028,700
+394,300
| +62% | +$1.19M |
|
1908
CALL
JFrog
FROG
$11.5B
| $3.21M | ﹤0.01% |
67,800
-28,800
| -30% | -$1.3M |
|
1909
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.7B
| $3.21M | ﹤0.01% |
+76,096
| New | +$3.18M |
|
1910
Asana
ASAN
$2.13B
| $3.19M | ﹤0.01% |
238,955
+93,868
| +65% | +$1.33M |
|
1911
CALL
WillScot Mobile Mini Holdings
WSC
$4.35B
| $3.19M | ﹤0.01% |
150,900
+31,900
| +27% | +$822K |
|
1912
AstraZeneca
AZN
$242B
| $3.18M | ﹤0.01% |
20,753
-1,196
| -5% | -$181K |
|
1913
Marvell Technology
MRVL
$197B
| $3.18M | ﹤0.01% |
37,870
-59,918
| -61% | -$4.41M |
|
1914
CALL
NextNav
NN
$3.3B
| $3.18M | ﹤0.01% |
222,500
-164,400
| -42% | -$2.59M |
|
1915
PUT
OneMain Financial
OMF
$7.55B
| $3.18M | ﹤0.01% |
56,300
+7,200
| +15% | +$425K |
|
1916
PUT
UBS Group
UBS
$175B
| $3.17M | ﹤0.01% |
77,400
+11,200
| +17% | +$435K |
|
1917
PUT
Clear Secure
YOU
$4.69B
| $3.17M | ﹤0.01% |
95,000
+29,800
| +46% | +$988K |
|
1918
PUT
Freedom Holding
FRHC
$9.44B
| $3.17M | ﹤0.01% |
+18,400
| New | +$3.1M |
|
|
EXAS
1919
CALL
DELISTED
Exact Sciences
EXAS
| $3.16M | ﹤0.01% |
57,800
+3,900
| +7% | +$195K |
|
1920
PUT
Kyndryl
KD
$2.89B
| $3.16M | ﹤0.01% |
105,200
+38,400
| +57% | +$1.32M |
|
1921
PUT
AerCap
AER
$23.8B
| $3.16M | ﹤0.01% |
26,100
+1,700
| +7% | +$198K |
|
1922
PUT
Rambus
RMBS
$10.8B
| $3.16M | ﹤0.01% |
30,300
+7,000
| +30% | +$540K |
|
|
VTLE
1923
CALL
DELISTED
Vital Energy
VTLE
| $3.16M | ﹤0.01% |
186,800
-111,200
| -37% | -$1.88M |
|
1924
CALL
Zebra Technologies
ZBRA
$17.7B
| $3.15M | ﹤0.01% |
10,600
-5,600
| -35% | -$1.79M |
|
1925
PUT
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$30.4M
| $3.14M | ﹤0.01% |
56,700
-15,500
| -21% | -$892K |
|
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.