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 | |
|---|---|---|---|---|---|---|
2401
CALL
Astrana Health
ASTH
$1.78B
| $1.59M | ﹤0.01% |
+56,000
| New | +$1.52M |
|
2402
PUT
Northern Oil and Gas
NOG
$2.57B
| $1.59M | ﹤0.01% |
64,000
+22,800
| +55% | +$605K |
|
2403
CALL
BioMarin Pharmaceuticals
BMRN
$13.6B
| $1.59M | ﹤0.01% |
29,300
+10,400
| +55% | +$595K |
|
2404
PUT
Fiverr
FVRR
$311M
| $1.58M | ﹤0.01% |
64,900
+24,900
| +62% | +$610K |
|
2405
CALL
Vanguard World Funds Extended Duration ETF
EDV
$3.49B
| $1.58M | ﹤0.01% |
23,100
+7,800
| +51% | +$515K |
|
2406
CALL
Extra Space Storage
EXR
$31B
| $1.58M | ﹤0.01% |
+11,200
| New | +$1.61M |
|
2407
CALL
Ormat Technologies
ORA
$6.97B
| $1.58M | ﹤0.01% |
+16,400
| New | +$1.48M |
|
|
SEZL
2408
Sezzle
SEZL
$4.37B
| $1.57M | ﹤0.01% |
+19,798
| New | +$2.27M |
|
2409
PUT
Omnicom Group
OMC
$23.5B
| $1.57M | ﹤0.01% |
19,300
+4,500
| +30% | +$340K |
|
2410
BorgWarner
BWA
$14B
| $1.57M | ﹤0.01% |
+35,646
| New | +$1.42M |
|
2411
CALL
Primoris Services
PRIM
$4.39B
| $1.57M | ﹤0.01% |
+11,400
| New | +$1.22M |
|
2412
CALL
TTM Technologies
TTMI
$14.5B
| $1.56M | ﹤0.01% |
+27,100
| New | +$1.26M |
|
2413
Magna International
MGA
$18.6B
| $1.56M | ﹤0.01% |
+32,879
| New | +$1.45M |
|
2414
CALL
Herbalife
HLF
$1.23B
| $1.56M | ﹤0.01% |
184,500
+25,500
| +16% | +$240K |
|
2415
CALL
CoreCivic
CXW
$3.32B
| $1.55M | ﹤0.01% |
76,200
-7,800
| -9% | -$162K |
|
2416
iShares Biotechnology ETF
IBB
$9.77B
| $1.55M | ﹤0.01% |
+10,712
| New | +$1.46M |
|
|
PR
2417
CALL
Permian Resources
PR
$18B
| $1.54M | ﹤0.01% |
120,600
+43,100
| +56% | +$591K |
|
2418
PUT
Rithm Capital
RITM
$5.71B
| $1.54M | ﹤0.01% |
135,500
+38,100
| +39% | +$462K |
|
|
GTM
2419
CALL
ZoomInfo Technologies
GTM
$1.25B
| $1.54M | ﹤0.01% |
141,400
-15,300
| -10% | -$164K |
|
2420
PUT
Canadian Solar
CSIQ
$1.04B
| $1.54M | ﹤0.01% |
118,200
+37,300
| +46% | +$446K |
|
|
SAFE
2421
CALL
Safehold
SAFE
$1.09B
| $1.54M | ﹤0.01% |
+99,100
| New | +$1.53M |
|
2422
PUT
Xcel Energy
XEL
$49.1B
| $1.53M | ﹤0.01% |
19,000
-28,500
| -60% | -$2.06M |
|
2423
Ciena
CIEN
$61.2B
| $1.53M | ﹤0.01% |
+10,500
| New | +$1.07M |
|
2424
PUT
IAMGOLD
IAG
$10.3B
| $1.53M | ﹤0.01% |
118,200
+40,900
| +53% | +$358K |
|
2425
PUT
Gen Digital
GEN
$17.7B
| $1.53M | ﹤0.01% |
53,800
-7,100
| -12% | -$212K |
|
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.