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 | |
|---|---|---|---|---|---|---|
1851
BigBear.ai
BBAI
$1.57B
| $3.46M | ﹤0.01% |
530,054
+487,775
| +1,154% | +$3.12M |
|
1852
CALL
Scorpio Tankers
STNG
$3.99B
| $3.45M | ﹤0.01% |
61,600
+4,900
| +9% | +$242K |
|
1853
PUT
Stellantis
STLA
$20.2B
| $3.45M | ﹤0.01% |
369,500
+18,200
| +5% | +$174K |
|
|
LAC
1854
CALL
Lithium Americas
LAC
$1.23B
| $3.45M | ﹤0.01% |
603,600
+441,100
| +271% | +$1.39M |
|
|
FLG
1855
PUT
Flagstar Bank National Association
FLG
$5.91B
| $3.45M | ﹤0.01% |
298,300
-100,400
| -25% | -$1.19M |
|
1856
CALL
Ares Capital
ARCC
$14.3B
| $3.44M | ﹤0.01% |
168,700
+112,800
| +202% | +$2.51M |
|
1857
ProShares Short VIX Short-Term Futures ETF
SVXY
$235M
| $3.44M | ﹤0.01% |
67,572
-9,075
| -12% | -$427K |
|
1858
CALL
Diageo
DEO
$53.1B
| $3.44M | ﹤0.01% |
36,000
-8,000
| -18% | -$840K |
|
1859
PUT
ProShares Ether Strategy ETF
EETH
$54.3M
| $3.43M | ﹤0.01% |
218,600
-114,900
| -34% | -$7.77M |
|
1860
CALL
Cinemark Holdings
CNK
$4.31B
| $3.42M | ﹤0.01% |
122,100
+100
| +0.1% | +$2.76K |
|
1861
CALL
M&T Bank
MTB
$36.7B
| $3.42M | ﹤0.01% |
17,300
+800
| +5% | +$157K |
|
1862
CALL
Planet Fitness
PLNT
$3.84B
| $3.42M | ﹤0.01% |
32,900
-3,900
| -11% | -$415K |
|
1863
PUT
Arthur J. Gallagher & Co
AJG
$64.6B
| $3.41M | ﹤0.01% |
11,000
-8,900
| -45% | -$2.68M |
|
1864
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$529M
| $3.4M | ﹤0.01% |
+20,875
| New | +$2.13M |
|
1865
Builders FirstSource
BLDR
$7.81B
| $3.4M | ﹤0.01% |
+28,040
| New | +$3.72M |
|
|
TEM
1866
Tempus AI
TEM
$9.36B
| $3.4M | ﹤0.01% |
+42,080
| New | +$2.95M |
|
1867
PUT
Owens Corning
OC
$12.2B
| $3.4M | ﹤0.01% |
24,000
+10,200
| +74% | +$1.5M |
|
1868
CALL
ResMed
RMD
$32.6B
| $3.39M | ﹤0.01% |
12,400
-9,800
| -44% | -$2.68M |
|
1869
PUT
KE Holdings
BEKE
$18.7B
| $3.39M | ﹤0.01% |
178,400
-89,700
| -33% | -$1.68M |
|
1870
PUT
Harley-Davidson
HOG
$2.92B
| $3.39M | ﹤0.01% |
121,400
+13,500
| +13% | +$362K |
|
|
SKYT
1871
CALL
DELISTED
SkyWater Technology
SKYT
| $3.38M | ﹤0.01% |
181,400
+122,100
| +206% | +$1.41M |
|
1872
PUT
SBA Communications
SBAC
$19.8B
| $3.38M | ﹤0.01% |
17,500
-26,000
| -60% | -$5.63M |
|
|
EXK
1873
Endeavour Silver
EXK
$3.14B
| $3.38M | ﹤0.01% |
431,118
+202,372
| +88% | +$1.19M |
|
1874
Pool Corp
POOL
$7.12B
| $3.38M | ﹤0.01% |
+10,899
| New | +$3.42M |
|
1875
NRG Energy
NRG
$26.3B
| $3.37M | ﹤0.01% |
+20,823
| New | +$3.24M |
|
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.