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 | |
|---|---|---|---|---|---|---|
351
PUT
AutoZone
AZO
$51.1B
| $79.7M | 0.03% |
23,500
-10,300
| -30% | -$38.9M |
|
352
PUT
RH
RH
$3.71B
| $79.5M | 0.03% |
444,000
+51,300
| +13% | +$8.77M |
|
|
AXON
353
PUT
Axon Enterprise
AXON
$46.4B
| $79.2M | 0.03% |
139,400
-49,900
| -26% | -$31M |
|
354
PUT
Rivian
RIVN
$23.2B
| $78.9M | 0.03% |
4,002,100
-214,000
| -5% | -$3.4M |
|
355
CALL
Occidental Petroleum
OXY
$55.9B
| $78.3M | 0.03% |
1,905,000
+86,700
| +5% | +$3.62M |
|
356
CALL
Airbnb
ABNB
$107B
| $78.2M | 0.03% |
576,100
-102,200
| -15% | -$12.7M |
|
357
CALL
Thermo Fisher Scientific
TMO
$220B
| $77.2M | 0.03% |
133,300
-6,000
| -4% | -$3.39M |
|
358
PUT
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.2B
| $76.3M | 0.03% |
639,100
+87,500
| +16% | +$10.4M |
|
359
CALL
Dollar General
DG
$27.9B
| $76.2M | 0.03% |
573,600
+100,100
| +21% | +$11.2M |
|
360
PUT
Wynn Resorts
WYNN
$10.6B
| $76.1M | 0.03% |
632,500
-283,100
| -31% | -$35M |
|
361
PUT
Merck
MRK
$318B
| $76M | 0.03% |
722,100
-72,400
| -9% | -$6.8M |
|
362
CALL
Fair Isaac
FICO
$22.5B
| $75.9M | 0.03% |
44,900
-3,200
| -7% | -$5.51M |
|
363
PUT
General Motors
GM
$76.8B
| $75.9M | 0.03% |
933,200
+170,300
| +22% | +$12M |
|
364
PUT
Global Payments
GPN
$22.8B
| $75.8M | 0.03% |
978,800
+814,900
| +497% | +$65.6M |
|
365
CALL
United Rentals
URI
$72.4B
| $75.5M | 0.03% |
93,300
-10,400
| -10% | -$9.03M |
|
366
CALL
Agnico Eagle Mines
AEM
$90.5B
| $75.5M | 0.03% |
445,100
+44,400
| +11% | +$7.46M |
|
|
NVO
367
PUT
Novo Nordisk
NVO
$209B
| $74.7M | 0.03% |
1,468,700
-1,420,700
| -49% | -$72.6M |
|
368
PUT
Freeport-McMoran
FCX
$97.5B
| $74.3M | 0.03% |
1,462,400
-60,500
| -4% | -$2.62M |
|
|
ECHO
369
CALL
EchoStar
ECHO
$26.2B
| $74.1M | 0.03% |
681,800
-24,300
| -3% | -$1.98M |
|
370
CALL
State Street Health Care Select Sector SPDR ETF
XLV
$42.7B
| $74.1M | 0.03% |
478,700
-18,900
| -4% | -$2.83M |
|
371
NVIDIA
NVDA
$5.42T
| $74M | 0.03% |
+397,028
| New | +$73.9M |
|
372
PUT
Humana
HUM
$46.2B
| $74M | 0.03% |
289,000
-127,800
| -31% | -$33.5M |
|
373
CALL
Affirm
AFRM
$25.2B
| $73.6M | 0.03% |
989,100
-102,500
| -9% | -$7.38M |
|
374
PUT
Amgen
AMGN
$222B
| $73.6M | 0.03% |
224,800
+100
| +0% | +$31.7K |
|
375
CALL
Carnival Corporation Ltd
CCL
$39.7B
| $73.5M | 0.03% |
2,405,700
+390,400
| +19% | +$10.9M |
|
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.