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 |
iShares Russell 2000 ETF
IWM
|
+$302M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$170M |
| 3 |
Broadcom
AVGO
|
+$164M |
| 4 |
Tesla
TSLA
|
+$158M |
| 5 |
Palantir
PLTR
|
+$109M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Bitcoin Trust
IBIT
|
+$167M |
| 2 |
Applovin
APP
|
+$126M |
| 3 |
JD.com
JD
|
+$103M |
| 4 |
Amazon
AMZN
|
+$97.8M |
| 5 |
Vanguard S&P 500 ETF
VOO
|
+$90.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.56% |
| 2 | Consumer Discretionary | 0.3% |
| 3 | Communication Services | 0.16% |
| 4 | Financials | 0.13% |
| 5 | Industrials | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
701
CALL
Coupang
CPNG
$29.2B
| $27.8M | 0.01% |
1,178,000
+203,700
| +21% | +$5.8M |
|
702
Berkshire Hathaway Class B
BRK.B
$1.13T
| $27.8M | 0.01% |
55,225
+8,711
| +19% | +$4.33M |
|
703
CALL
First Majestic Silver
AG
$9.07B
| $27.7M | 0.01% |
1,664,000
+587,300
| +55% | +$8.16M |
|
|
PPLT
704
PUT
abrdn Physical Platinum Shares ETF
PPLT
$2.02B
| $27.7M | 0.01% |
+1,487,000
| New | +$22.9M |
|
705
CALL
Archer Daniels Midland
ADM
$36.9B
| $27.7M | 0.01% |
482,100
-50,600
| -9% | -$3.02M |
|
706
CALL
Stanley Black & Decker
SWK
$15.7B
| $27.5M | 0.01% |
370,700
+60,900
| +20% | +$4.29M |
|
707
CALL
Kimberly-Clark
KMB
$36.5B
| $27.2M | 0.01% |
269,600
+187,500
| +228% | +$20.5M |
|
708
CALL
Monolithic Power Systems
MPWR
$68.9B
| $27.1M | 0.01% |
29,900
+1,500
| +5% | +$1.44M |
|
709
PUT
Ross Stores
ROST
$81.9B
| $27.1M | 0.01% |
150,400
+59,900
| +66% | +$10M |
|
710
PUT
Eos Energy Enterprises
EOSE
$1.51B
| $27.1M | 0.01% |
2,361,300
+1,454,800
| +160% | +$20.9M |
|
711
CALL
Wingstop
WING
$3.18B
| $27M | 0.01% |
113,200
-16,600
| -13% | -$4.11M |
|
712
PUT
Comfort Systems
FIX
$59.6B
| $27M | 0.01% |
28,900
+10,500
| +57% | +$9.69M |
|
713
CALL
NIO
NIO
$11.9B
| $26.9M | 0.01% |
5,276,100
-516,200
| -9% | -$3.18M |
|
714
PUT
US Bancorp Series B Preferred Stock
USB.PRH
$746M
| $26.9M | 0.01% |
504,000
+81,600
| +19% | +$1.53M |
|
715
CALL
Fidelity Wise Origin Bitcoin Fund
FBTC
$12.1B
| $26.7M | 0.01% |
+350,600
| New | +$30.6M |
|
716
PUT
Antero Resources
AR
$10.7B
| $26.7M | 0.01% |
775,000
-1,455,300
| -65% | -$49.3M |
|
717
CALL
Air Products & Chemicals
APD
$67.6B
| $26.7M | 0.01% |
108,100
+28,700
| +36% | +$7.27M |
|
718
CALL
CME Group
CME
$94.8B
| $26.7M | 0.01% |
97,700
+3,700
| +4% | +$1.01M |
|
719
CALL
Rocket Companies
RKT
$38.9B
| $26.6M | 0.01% |
1,373,900
+64,700
| +5% | +$1.16M |
|
|
TEM
720
PUT
Tempus AI
TEM
$9.39B
| $26.5M | 0.01% |
449,400
-63,200
| -12% | -$4.94M |
|
721
PUT
Altria Group
MO
$114B
| $26.5M | 0.01% |
460,200
-83,000
| -15% | -$5.01M |
|
722
CALL
Yum! Brands
YUM
$41.1B
| $26.4M | 0.01% |
174,800
+96,000
| +122% | +$14.2M |
|
723
CALL
XPeng
XPEV
$11.6B
| $26.4M | 0.01% |
1,303,600
+235,500
| +22% | +$5.11M |
|
724
CALL
HubSpot
HUBS
$10.5B
| $26.4M | 0.01% |
65,800
+20,200
| +44% | +$8.37M |
|
725
PUT
ON Semiconductor
ON
$31.6B
| $26.4M | 0.01% |
487,000
-3,986,600
| -89% | -$205M |
|
Similar funds
IMC Chicago's Q4 2025 Portfolio in Review
As of Q4 2025, IMC Chicago held 4,538 positions worth $275B, up 0.14% from $275B the previous quarter. Its ten largest holdings account for 36% of the portfolio.
IMC Chicago's Q4 2025 filing shows 985 new, 1,665 increased, 1,358 reduced and 525 closed positions. Its largest new stake was Palantir: 601,853 shares worth $107M. The largest sale was iShares Bitcoin Trust, an estimated $167M.
By sector, the portfolio is most concentrated in Technology at 0.56% of assets, up from 0.33% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- IMC Chicago's largest Q4 2025 buy was Palantir: 601,853 shares worth $107M.
- IMC Chicago added most to iShares Russell 2000 ETF in Q4 2025, an estimated $302M increase.
- IMC Chicago's biggest Q4 2025 reduction was iShares Bitcoin Trust, cutting an estimated $167M.
- IMC Chicago fully exited Amazon in Q4 2025, selling an estimated $97.8M.
- IMC Chicago's ten largest holdings make up 36% of its $275B portfolio in Q4 2025.
- IMC Chicago opened 985 new positions and closed 525 in Q4 2025.
- IMC Chicago's portfolio value rose 0.14% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q4 2025, filed 29 Jan 2026.