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 | |
|---|---|---|---|---|---|---|
701
CALL
Jabil
JBL
$38.5B
| $24.5M | 0.01% |
113,000
+31,300
| +38% | +$6.82M |
|
702
CALL
American Airlines Group
AAL
$9.98B
| $24.5M | 0.01% |
2,182,100
+303,300
| +16% | +$3.74M |
|
703
CALL
TransDigm Group
TDG
$69B
| $24.5M | 0.01% |
+18,600
| New | +$26.6M |
|
704
CALL
Pinterest
PINS
$13B
| $24.5M | 0.01% |
761,500
-115,100
| -13% | -$4.17M |
|
705
CALL
Dick's Sporting Goods
DKS
$18.2B
| $24.3M | 0.01% |
109,200
-82,900
| -43% | -$18M |
|
706
PUT
CME Group
CME
$94.2B
| $24.2M | 0.01% |
89,700
+13,100
| +17% | +$3.56M |
|
707
PUT
HubSpot
HUBS
$10.5B
| $24M | 0.01% |
51,400
+2,900
| +6% | +$1.46M |
|
708
CALL
Tenet Healthcare
THC
$21.2B
| $23.9M | 0.01% |
117,700
+58,300
| +98% | +$10.3M |
|
709
PUT
Norfolk Southern
NSC
$75.2B
| $23.9M | 0.01% |
79,500
+60,100
| +310% | +$16.7M |
|
710
PUT
NuScale Power
SMR
$3.93B
| $23.8M | 0.01% |
662,100
+228,600
| +53% | +$9.11M |
|
711
CALL
Sunrun
RUN
$2.36B
| $23.8M | 0.01% |
1,376,700
-142,700
| -9% | -$1.91M |
|
712
PUT
Best Buy
BBY
$17.5B
| $23.7M | 0.01% |
313,700
-38,300
| -11% | -$2.75M |
|
713
Broadcom
AVGO
$1.99T
| $23.6M | 0.01% |
+71,649
| New | +$22M |
|
714
PUT
SolarEdge
SEDG
$2B
| $23.5M | 0.01% |
636,300
-82,300
| -11% | -$2.46M |
|
715
CALL
Realty Income
O
$59.3B
| $23.5M | 0.01% |
386,400
+25,000
| +7% | +$1.46M |
|
716
CALL
Oscar Health
OSCR
$8.9B
| $23.4M | 0.01% |
1,235,800
+626,100
| +103% | +$10.3M |
|
717
Berkshire Hathaway Class B
BRK.B
$1.09T
| $23.4M | 0.01% |
46,514
+29,820
| +179% | +$14.4M |
|
718
AST SpaceMobile
ASTS
$22.1B
| $23.4M | 0.01% |
476,415
+381,673
| +403% | +$18.4M |
|
|
PPLC
719
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $23.4M | 0.01% |
409,500
+194,700
| +91% | +$11.1M |
|
720
PUT
Progressive
PGR
$122B
| $23.3M | 0.01% |
94,200
-43,200
| -31% | -$10.6M |
|
721
PUT
Celsius Holdings
CELH
$6.97B
| $23.2M | 0.01% |
402,700
-62,600
| -13% | -$3.27M |
|
722
CALL
Stanley Black & Decker
SWK
$15.5B
| $23M | 0.01% |
309,800
+33,100
| +12% | +$2.43M |
|
723
Marriott International
MAR
$92.8B
| $23M | 0.01% |
+88,406
| New | +$23.7M |
|
724
PUT
Nu Holdings
NU
$65B
| $22.9M | 0.01% |
1,433,200
+514,800
| +56% | +$7.18M |
|
725
CALL
O'Reilly Automotive
ORLY
$74.3B
| $22.9M | 0.01% |
212,200
+43,400
| +26% | +$4.36M |
|
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.