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 | |
|---|---|---|---|---|---|---|
2326
CALL
Arch Capital
ACGL
$33.2B
| $1.74M | ﹤0.01% |
19,200
+6,700
| +54% | +$601K |
|
2327
PUT
Prospect Capital
PSEC
$1.15B
| $1.74M | ﹤0.01% |
+633,200
| New | +$1.89M |
|
2328
Alaska Air
ALK
$5.3B
| $1.74M | ﹤0.01% |
34,970
-15,640
| -31% | -$870K |
|
2329
PUT
Helen of Troy
HELE
$696M
| $1.74M | ﹤0.01% |
69,000
+14,400
| +26% | +$349K |
|
2330
Albemarle
ALB
$15.1B
| $1.73M | ﹤0.01% |
+21,358
| New | +$1.65M |
|
2331
CALL
Tradeweb Markets
TW
$21.9B
| $1.73M | ﹤0.01% |
15,600
+1,200
| +8% | +$154K |
|
2332
Annaly Capital Management
NLY
$17.4B
| $1.73M | ﹤0.01% |
85,627
+60,634
| +243% | +$1.26M |
|
2333
CALL
Delek US
DK
$4.12B
| $1.73M | ﹤0.01% |
53,600
+18,900
| +54% | +$494K |
|
2334
PUT
Franklin Resources
BEN
$17.1B
| $1.73M | ﹤0.01% |
74,700
+31,700
| +74% | +$784K |
|
2335
PUT
Invesco
IVZ
$13.9B
| $1.73M | ﹤0.01% |
75,200
+52,500
| +231% | +$1.09M |
|
2336
PUT
GXO Logistics
GXO
$5.52B
| $1.72M | ﹤0.01% |
32,500
-1,800
| -5% | -$92.5K |
|
2337
PUT
Terex
TEX
$7.8B
| $1.72M | ﹤0.01% |
33,500
+9,100
| +37% | +$463K |
|
2338
ProShares Ultra Industrials
UXI
$32.9M
| $1.72M | ﹤0.01% |
36,954
+12,731
| +53% | +$573K |
|
2339
BioNTech
BNTX
$23.3B
| $1.72M | ﹤0.01% |
+17,406
| New | +$1.86M |
|
2340
FIVE9
FIVN
$2.53B
| $1.72M | ﹤0.01% |
70,890
+21,907
| +45% | +$579K |
|
2341
CALL
Dorian LPG
LPG
$1.91B
| $1.71M | ﹤0.01% |
57,500
+24,400
| +74% | +$732K |
|
2342
Direxion Daily Aerospace & Defense Bull 3X ETF
DFEN
$424M
| $1.71M | ﹤0.01% |
+24,887
| New | +$1.45M |
|
2343
CALL
Sarepta Therapeutics
SRPT
$1.94B
| $1.7M | ﹤0.01% |
88,300
-3,400
| -4% | -$60.6K |
|
2344
GraniteShares 2x Long TSLA Daily ETF
TSLR
$74.2M
| $1.7M | ﹤0.01% |
+50,025
| New | +$1.09M |
|
2345
CALL
Weyerhaeuser
WY
$17.8B
| $1.7M | ﹤0.01% |
68,500
+2,200
| +3% | +$56.2K |
|
2346
Pitney Bowes
PBI
$2.28B
| $1.7M | ﹤0.01% |
148,754
+6,534
| +5% | +$76.1K |
|
2347
CALL
NETGEAR
NTGR
$658M
| $1.7M | ﹤0.01% |
52,400
+38,100
| +266% | +$1.04M |
|
2348
PUT
Dynatrace
DT
$14.3B
| $1.7M | ﹤0.01% |
35,000
+4,000
| +13% | +$202K |
|
2349
CALL
Jack in the Box
JACK
$358M
| $1.69M | ﹤0.01% |
85,700
+48,600
| +131% | +$966K |
|
2350
CALL
Aramark
ARMK
$16.1B
| $1.69M | ﹤0.01% |
44,100
+22,800
| +107% | +$923K |
|
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.