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 | |
|---|---|---|---|---|---|---|
2426
Portillo's
PTLO
$365M
| $1.53M | ﹤0.01% |
236,604
+169,562
| +253% | +$1.43M |
|
2427
abrdn Physical Silver Shares ETF
SIVR
$4.47B
| $1.52M | ﹤0.01% |
34,192
-15,339
| -31% | -$578K |
|
2428
PUT
Tradeweb Markets
TW
$22.3B
| $1.52M | ﹤0.01% |
+13,700
| New | +$1.76M |
|
2429
ConocoPhillips
COP
$150B
| $1.52M | ﹤0.01% |
+16,052
| New | +$1.52M |
|
2430
Booz Allen Hamilton
BAH
$9.43B
| $1.51M | ﹤0.01% |
+15,139
| New | +$1.62M |
|
2431
PUT
Sonos
SONO
$1.96B
| $1.51M | ﹤0.01% |
95,500
+49,000
| +105% | +$629K |
|
|
GRRR
2432
PUT
Gorilla Technology Group
GRRR
$428M
| $1.5M | ﹤0.01% |
81,500
-17,700
| -18% | -$325K |
|
2433
CALL
Travere Therapeutics
TVTX
$5.79B
| $1.5M | ﹤0.01% |
+62,900
| New | +$1.18M |
|
2434
PUT
Axos Financial
AX
$5.72B
| $1.5M | ﹤0.01% |
17,700
-4,600
| -21% | -$401K |
|
2435
CALL
Clover Health Investments
CLOV
$2.38B
| $1.5M | ﹤0.01% |
488,800
-29,200
| -6% | -$83.4K |
|
2436
ProShares UltraShort S&P500
SDS
$365M
| $1.5M | ﹤0.01% |
20,694
-22,059
| -52% | -$1.73M |
|
2437
CALL
Lamar Advertising Co
LAMR
$15.8B
| $1.49M | ﹤0.01% |
+12,200
| New | +$1.52M |
|
2438
CALL
Weatherford International
WFRD
$6.6B
| $1.49M | ﹤0.01% |
21,800
-5,400
| -20% | -$321K |
|
2439
CALL
Genius Sports
GENI
$2.2B
| $1.49M | ﹤0.01% |
120,400
+4,700
| +4% | +$56.2K |
|
2440
Iron Mountain
IRM
$37.7B
| $1.49M | ﹤0.01% |
+14,611
| New | +$1.41M |
|
2441
CALL
Alphatec Holdings
ATEC
$1.51B
| $1.49M | ﹤0.01% |
102,400
+65,400
| +177% | +$910K |
|
2442
CALL
POET Technologies
POET
$1.54B
| $1.49M | ﹤0.01% |
268,700
+220,800
| +461% | +$1.25M |
|
2443
PUT
Vanguard Total World Stock ETF
VT
$81.9B
| $1.49M | ﹤0.01% |
+10,800
| New | +$1.44M |
|
2444
American Superconductor
AMSC
$1.53B
| $1.49M | ﹤0.01% |
25,044
+6,435
| +35% | +$322K |
|
2445
PUT
Kodiak Gas Services
KGS
$6.3B
| $1.49M | ﹤0.01% |
+40,200
| New | +$1.36M |
|
2446
Conagra Brands
CAG
$7.39B
| $1.48M | ﹤0.01% |
81,020
+40,377
| +99% | +$774K |
|
2447
Prospect Capital
PSEC
$1.18B
| $1.48M | ﹤0.01% |
+539,210
| New | +$1.61M |
|
2448
PUT
ZIM Integrated Shipping Services
ZIM
$3.23B
| $1.48M | ﹤0.01% |
109,400
-69,800
| -39% | -$1.06M |
|
2449
CALL
InMode
INMD
$875M
| $1.48M | ﹤0.01% |
99,200
+5,000
| +5% | +$73.1K |
|
2450
Invesco Dorsey Wright Financial Momentum ETF
PFI
$60.4M
| $1.48M | ﹤0.01% |
25,483
+11,382
| +81% | +$644K |
|
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.