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 | |
|---|---|---|---|---|---|---|
326
CALL
RH
RH
$3.48B
| $82.4M | 0.03% |
405,800
-37,800
| -9% | -$8.21M |
|
327
CALL
Albemarle
ALB
$15.5B
| $82.4M | 0.03% |
1,015,900
+341,300
| +51% | +$26.3M |
|
328
CALL
Airbnb
ABNB
$110B
| $82.4M | 0.03% |
678,300
+21,300
| +3% | +$2.76M |
|
329
PUT
GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF
COMB
$150M
| $81.5M | 0.03% |
1,375,800
+334,000
| +32% | +$7.09M |
|
330
PUT
Comcast
CMCSA
$90.1B
| $81.4M | 0.03% |
2,591,000
+2,086,900
| +414% | +$69.9M |
|
331
CALL
Etsy
ETSY
$7.32B
| $81.3M | 0.03% |
1,224,900
+267,400
| +28% | +$16M |
|
332
CALL
Union Pacific
UNP
$173B
| $81.2M | 0.03% |
343,600
+30,000
| +10% | +$6.76M |
|
333
PUT
United Rentals
URI
$71.6B
| $80.5M | 0.03% |
84,300
+600
| +0.7% | +$535K |
|
334
PUT
Capital One
COF
$135B
| $80.2M | 0.03% |
377,400
+14,800
| +4% | +$3.24M |
|
|
335
Netflix
NFLX
$315B
| $79.9M | 0.03% |
+666,120
| New | +$81.3M |
|
|
336
PUT
RH
RH
$3.48B
| $79.8M | 0.03% |
392,700
-12,900
| -3% | -$2.8M |
|
337
CALL
Affirm
AFRM
$25.7B
| $79.8M | 0.03% |
1,091,600
+150,800
| +16% | +$11.5M |
|
338
CALL
AST SpaceMobile
ASTS
$20.8B
| $79.7M | 0.03% |
1,624,200
-370,700
| -19% | -$17.9M |
|
339
PUT
Philip Morris
PM
$289B
| $79.5M | 0.03% |
490,400
+93,600
| +24% | +$15.7M |
|
340
CALL
Lennar Class A
LEN
$20.9B
| $78.9M | 0.03% |
625,700
+231,700
| +59% | +$28.8M |
|
341
Micron Technology
MU
$966B
| $78.8M | 0.03% |
471,252
+69,342
| +17% | +$8.87M |
|
|
342
PUT
Airbnb
ABNB
$110B
| $78.7M | 0.03% |
648,000
-115,300
| -15% | -$14.9M |
|
343
CALL
Analog Devices
ADI
$190B
| $78.6M | 0.03% |
319,900
+135,600
| +74% | +$32.6M |
|
|
344
CALL
Philip Morris
PM
$289B
| $78.5M | 0.03% |
484,200
+1,700
| +0.4% | +$286K |
|
345
CALL
Lowe's Companies
LOW
$125B
| $78.3M | 0.03% |
311,500
+117,900
| +61% | +$29M |
|
346
CALL
Delta Air Lines
DAL
$59.2B
| $77.9M | 0.03% |
1,372,700
+426,100
| +45% | +$24.3M |
|
347
PUT
Charter Communications
CHTR
$18.4B
| $77.3M | 0.03% |
281,000
+182,900
| +186% | +$55.3M |
|
348
CALL
iShares Morningstar Value ETF
ILCV
$1.36B
| $77M | 0.03% |
956,900
+103,100
| +12% | +$8.92M |
|
349
PUT
Ulta Beauty
ULTA
$23.5B
| $76.9M | 0.03% |
140,600
-17,900
| -11% | -$9.17M |
|
350
CALL
Riot Platforms
RIOT
$7.59B
| $76.7M | 0.03% |
4,029,100
+1,822,400
| +83% | +$25.2M |
|
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.