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 | |
|---|---|---|---|---|---|---|
2001
CALL
Ollie's Bargain Outlet
OLLI
$4.66B
| $2.81M | ﹤0.01% |
21,900
-9,500
| -30% | -$1.26M |
|
2002
CALL
ICICI Bank
IBN
$106B
| $2.81M | ﹤0.01% |
93,000
+62,900
| +209% | +$2.05M |
|
2003
CALL
Freshpet
FRPT
$3.52B
| $2.81M | ﹤0.01% |
51,000
+17,600
| +53% | +$1.09M |
|
2004
DuPont de Nemours
DD
$19.6B
| $2.81M | ﹤0.01% |
+28,730
| New | +$2.71M |
|
2005
WisdomTree Bitcoin Fund
BTCW
$136M
| $2.81M | ﹤0.01% |
+23,159
| New | +$2.81M |
|
2006
PUT
Guidewire Software
GWRE
$14.7B
| $2.8M | ﹤0.01% |
+12,200
| New | +$2.77M |
|
2007
ProShares UltraShort Bloomberg Crude Oil
SCO
$603M
| $2.8M | ﹤0.01% |
40,242
+25,393
| +171% | +$1.73M |
|
|
SMLR
2008
DELISTED
Semler Scientific
SMLR
| $2.8M | ﹤0.01% |
+93,310
| New | +$3.21M |
|
2009
iShares US Home Construction ETF
ITB
$2.36B
| $2.79M | ﹤0.01% |
26,000
+6,670
| +35% | +$702K |
|
2010
PUT
Golar LNG
GLNG
$5.27B
| $2.79M | ﹤0.01% |
69,000
+17,400
| +34% | +$719K |
|
2011
PUT
Universal Display
OLED
$4.11B
| $2.79M | ﹤0.01% |
19,400
-2,200
| -10% | -$320K |
|
2012
CALL
Hyatt Hotels
H
$17.1B
| $2.78M | ﹤0.01% |
19,600
+3,200
| +20% | +$459K |
|
|
GRAL
2013
PUT
GRAIL Inc
GRAL
$3.04B
| $2.77M | ﹤0.01% |
46,900
+24,500
| +109% | +$936K |
|
2014
PUT
Planet Fitness
PLNT
$3.81B
| $2.77M | ﹤0.01% |
26,700
-9,300
| -26% | -$989K |
|
2015
CALL
Melco Resorts & Entertainment
MLCO
$2.19B
| $2.77M | ﹤0.01% |
302,000
-21,200
| -7% | -$194K |
|
2016
PUT
Equinor
EQNR
$96.8B
| $2.75M | ﹤0.01% |
112,900
-11,800
| -9% | -$296K |
|
|
ETHW
2017
Bitwise Ethereum ETF
ETHW
$197M
| $2.75M | ﹤0.01% |
+92,196
| New | +$2.59M |
|
2018
Abercrombie & Fitch
ANF
$4.8B
| $2.75M | ﹤0.01% |
32,124
-9,409
| -23% | -$878K |
|
2019
CALL
Rapid7
RPD
$871M
| $2.74M | ﹤0.01% |
146,100
+6,000
| +4% | +$127K |
|
2020
CALL
iShares Core MSCI Emerging Markets ETF
IEMG
$158B
| $2.74M | ﹤0.01% |
34,100
-1,700
| -5% | -$106K |
|
2021
CF Industries
CF
$17.9B
| $2.73M | ﹤0.01% |
+30,487
| New | +$2.72M |
|
2022
CALL
Innovative Industrial Properties
IIPR
$1.65B
| $2.73M | ﹤0.01% |
50,900
+26,300
| +107% | +$1.43M |
|
|
KEEL
2023
CALL
Keel Infrastructure Corp
KEEL
$2.07B
| $2.72M | ﹤0.01% |
965,900
+549,900
| +132% | +$853K |
|
2024
PUT
PACCAR
PCAR
$68.9B
| $2.72M | ﹤0.01% |
27,700
-2,900
| -9% | -$286K |
|
|
EXK
2025
PUT
Endeavour Silver
EXK
$3.15B
| $2.72M | ﹤0.01% |
347,000
+87,900
| +34% | +$519K |
|
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.