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 | |
|---|---|---|---|---|---|---|
3351
CALL
Blink Charging
BLNK
$85.5M
| $355K | ﹤0.01% |
+216,300
| New | +$240K |
|
3352
PUT
Banco Bradesco
BBD
$35B
| $354K | ﹤0.01% |
104,800
+37,500
| +56% | +$113K |
|
3353
Tiptree Inc
TIPT
$671M
| $354K | ﹤0.01% |
+18,457
| New | +$411K |
|
3354
PUT
Inseego
INSG
$84.9M
| $352K | ﹤0.01% |
+23,500
| New | +$237K |
|
3355
TripAdvisor
TRIP
$1.28B
| $351K | ﹤0.01% |
21,604
-38,725
| -64% | -$676K |
|
|
NB
3356
NioCorp Developments
NB
$780M
| $351K | ﹤0.01% |
+52,573
| New | +$222K |
|
3357
CALL
Acadia Healthcare
ACHC
$2.9B
| $349K | ﹤0.01% |
+14,100
| New | +$315K |
|
3358
CALL
Mirion Technologies
MIR
$3.8B
| $349K | ﹤0.01% |
15,000
-12,100
| -45% | -$262K |
|
3359
CALL
Ocular Therapeutix
OCUL
$2.14B
| $348K | ﹤0.01% |
+29,800
| New | +$356K |
|
3360
Bloomin' Brands
BLMN
$952M
| $346K | ﹤0.01% |
+48,308
| New | +$388K |
|
3361
CALL
Beyond Meat
BYND
$215M
| $344K | ﹤0.01% |
182,200
+93,700
| +106% | +$276K |
|
3362
PUT
ING
ING
$101B
| $344K | ﹤0.01% |
+13,200
| New | +$318K |
|
|
TPH
3363
CALL
DELISTED
Tri Pointe Homes
TPH
| $343K | ﹤0.01% |
+10,100
| New | +$344K |
|
3364
Remitly
RELY
$4.97B
| $342K | ﹤0.01% |
+21,001
| New | +$377K |
|
|
CWAN
3365
DELISTED
Clearwater Analytics
CWAN
| $341K | ﹤0.01% |
+18,907
| New | +$383K |
|
3366
CALL
Fortrea Holdings
FTRE
$1.86B
| $339K | ﹤0.01% |
+40,300
| New | +$308K |
|
3367
PUT
Grindr
GRND
$2.82B
| $338K | ﹤0.01% |
22,500
-7,700
| -25% | -$135K |
|
3368
UGI
UGI
$7.54B
| $335K | ﹤0.01% |
+10,077
| New | +$352K |
|
3369
PUT
Warby Parker
WRBY
$3.1B
| $334K | ﹤0.01% |
12,100
-3,000
| -20% | -$75.8K |
|
3370
CALL
Gilat Satellite Networks
GILT
$846M
| $333K | ﹤0.01% |
+25,600
| New | +$235K |
|
3371
CALL
Neonode
NEON
$16.4M
| $333K | ﹤0.01% |
+95,500
| New | +$1.76M |
|
3372
PUT
Flywire
FLYW
$2.13B
| $333K | ﹤0.01% |
+24,600
| New | +$302K |
|
3373
Gen Digital
GEN
$17.4B
| $331K | ﹤0.01% |
+11,654
| New | +$349K |
|
3374
Gogo Inc
GOGO
$392M
| $330K | ﹤0.01% |
+38,379
| New | +$487K |
|
3375
PUT
Bain Capital Specialty
BCSF
$833M
| $329K | ﹤0.01% |
+23,100
| New | +$351K |
|
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.