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 | |
|---|---|---|---|---|---|---|
501
CALL
Atlassian
TEAM
$39.1B
| $44.1M | 0.02% |
276,000
+92,600
| +50% | +$16.8M |
|
502
PUT
Invesco Aerospace & Defense ETF
PPA
$8.72B
| $43.8M | 0.02% |
231,000
+142,100
| +160% | +$20.9M |
|
503
PUT
Riot Platforms
RIOT
$7.65B
| $43.5M | 0.02% |
2,283,700
+1,278,200
| +127% | +$17.7M |
|
504
CALL
Applied Digital
APLD
$8.55B
| $43.4M | 0.02% |
1,893,600
+1,000,100
| +112% | +$14.8M |
|
505
PUT
American Airlines Group
AAL
$10.1B
| $43.2M | 0.02% |
3,846,300
+1,468,500
| +62% | +$18.1M |
|
506
PUT
AT&T
T
$168B
| $43.2M | 0.02% |
1,530,500
-122,900
| -7% | -$3.49M |
|
507
CALL
Constellation Brands
STZ
$22.9B
| $42.8M | 0.02% |
318,000
+109,700
| +53% | +$17.4M |
|
508
Burlington
BURL
$22.6B
| $42.6M | 0.02% |
167,326
+154,323
| +1,187% | +$41.9M |
|
509
PUT
BP
BP
$111B
| $42.5M | 0.02% |
1,234,400
+41,200
| +3% | +$1.38M |
|
510
CALL
EOG Resources
EOG
$75.2B
| $42.4M | 0.02% |
378,600
-43,000
| -10% | -$5.13M |
|
|
ECHO
511
PUT
EchoStar
ECHO
$25.6B
| $42.4M | 0.02% |
555,500
+29,100
| +6% | +$1.32M |
|
512
CALL
Live Nation Entertainment
LYV
$42.7B
| $42.2M | 0.02% |
258,000
+157,600
| +157% | +$24.9M |
|
513
CALL
Vanguard Information Technology ETF
VGT
$147B
| $41.7M | 0.02% |
447,200
-158,400
| -26% | -$13.8M |
|
514
Trade Desk
TTD
$6.37B
| $41.7M | 0.02% |
850,995
+808,518
| +1,903% | +$51.3M |
|
515
CALL
Vertex Pharmaceuticals
VRTX
$134B
| $41.5M | 0.02% |
105,900
+69,000
| +187% | +$28.8M |
|
516
CALL
SolarEdge
SEDG
$2.05B
| $41.5M | 0.02% |
1,120,800
+201,600
| +22% | +$6.02M |
|
|
TEM
517
PUT
Tempus AI
TEM
$10B
| $41.4M | 0.02% |
512,600
+8,000
| +2% | +$560K |
|
518
PUT
Lyft
LYFT
$6.64B
| $41.3M | 0.02% |
1,874,700
+666,200
| +55% | +$11.1M |
|
519
CALL
ProShares Ultra S&P500
SSO
$8.35B
| $41.1M | 0.01% |
705,600
+31,200
| +5% | +$1.63M |
|
520
CALL
Enphase Energy
ENPH
$5.59B
| $40.9M | 0.01% |
1,157,000
-9,800
| -0.8% | -$364K |
|
521
Advanced Micro Devices
AMD
$774B
| $40.8M | 0.01% |
+252,156
| New | +$40.7M |
|
|
EA
522
PUT
DELISTED
Electronic Arts
EA
| $40.8M | 0.01% |
202,100
+82,200
| +69% | +$13.6M |
|
|
SCIU
523
CALL
DELISTED
Global X Scientific Beta US ETF
SCIU
| $40.8M | 0.01% |
794,900
+281,700
| +55% | +$14.4M |
|
524
PUT
Opendoor
OPEN
$3.5B
| $40.6M | 0.01% |
5,258,323
+4,536,230
| +628% | +$18.4M |
|
|
525
PUT
Atlassian
TEAM
$39.1B
| $40.5M | 0.01% |
253,500
+31,900
| +14% | +$5.77M |
|
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.