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 | |
|---|---|---|---|---|---|---|
3401
Viavi Solutions
VIAV
$9.47B
| $309K | ﹤0.01% |
+24,318
| New | +$267K |
|
3402
Option Care Health
OPCH
$3.61B
| $308K | ﹤0.01% |
+11,093
| New | +$321K |
|
3403
CALL
Invesco DB Commodity Index Tracking Fund
DBC
$1.72B
| $306K | ﹤0.01% |
13,600
+2,000
| +17% | +$44.5K |
|
3404
Dine Brands
DIN
$454M
| $306K | ﹤0.01% |
12,385
+1,402
| +13% | +$32.9K |
|
|
LX
3405
PUT
LexinFintech Holdings
LX
$242M
| $306K | ﹤0.01% |
57,400
-4,000
| -7% | -$25.6K |
|
3406
PUT
Trevi Therapeutics
TRVI
$2.54B
| $306K | ﹤0.01% |
+33,400
| New | +$250K |
|
3407
CALL
Freshworks
FRSH
$3.31B
| $302K | ﹤0.01% |
25,700
-29,000
| -53% | -$391K |
|
3408
CALL
Excelerate Energy
EE
$1.11B
| $302K | ﹤0.01% |
+12,000
| New | +$300K |
|
|
DX
3409
Dynex Capital
DX
$3.21B
| $301K | ﹤0.01% |
+24,484
| New | +$306K |
|
3410
CALL
Daktronics
DAKT
$1.02B
| $299K | ﹤0.01% |
+14,300
| New | +$257K |
|
|
TBCH
3411
PUT
Turtle Beach Corp
TBCH
$256M
| $299K | ﹤0.01% |
+18,800
| New | +$279K |
|
3412
CALL
United Microelectronic
UMC
$47.5B
| $296K | ﹤0.01% |
+39,100
| New | +$277K |
|
3413
CALL
Corsair Gaming
CRSR
$1.39B
| $296K | ﹤0.01% |
33,200
-5,800
| -15% | -$52.2K |
|
3414
CALL
Dentsply Sirona
XRAY
$2.31B
| $294K | ﹤0.01% |
23,200
-9,600
| -29% | -$139K |
|
3415
Hawaiian Electric Industries
HE
$2.05B
| $294K | ﹤0.01% |
+26,660
| New | +$304K |
|
3416
CALL
Arteris
AIP
$1.35B
| $294K | ﹤0.01% |
+29,100
| New | +$277K |
|
|
JKS
3417
JinkoSolar
JKS
$873M
| $294K | ﹤0.01% |
+12,227
| New | +$288K |
|
3418
Immersion
IMMR
$248M
| $293K | ﹤0.01% |
39,916
+11,218
| +39% | +$81.4K |
|
3419
PUT
Quantum-Si Incorporated
QSI
$179M
| $293K | ﹤0.01% |
207,500
+58,500
| +39% | +$84.6K |
|
3420
PUT
Rayonier Advanced Materials
RYAM
$590M
| $292K | ﹤0.01% |
40,500
-17,800
| -31% | -$91.7K |
|
3421
PUT
indie Semiconductor
INDI
$805M
| $291K | ﹤0.01% |
+71,400
| New | +$294K |
|
3422
ProShares UltraShort Dow 30
DXD
$42.6M
| $291K | ﹤0.01% |
+13,206
| New | +$309K |
|
3423
CALL
Viant Technology
DSP
$264M
| $289K | ﹤0.01% |
+33,500
| New | +$382K |
|
3424
PUT
Tronox
TROX
$1.02B
| $288K | ﹤0.01% |
+71,700
| New | +$328K |
|
3425
PUT
LegalZoom.com
LZ
$932M
| $288K | ﹤0.01% |
27,700
-10,000
| -27% | -$99.7K |
|
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.