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 | |
|---|---|---|---|---|---|---|
526
CALL
Riot Platforms
RIOT
$7.76B
| $44.9M | 0.02% |
3,543,800
-485,300
| -12% | -$8.3M |
|
527
Netflix
NFLX
$309B
| $44.7M | 0.02% |
477,204
-188,916
| -28% | -$20.4M |
|
528
PUT
Vertex Pharmaceuticals
VRTX
$126B
| $44.5M | 0.02% |
98,100
+25,600
| +35% | +$11M |
|
529
CALL
Etsy
ETSY
$7.85B
| $44.5M | 0.02% |
802,000
-422,900
| -35% | -$25.8M |
|
530
PUT
Marriott International
MAR
$92.3B
| $44.3M | 0.02% |
142,900
+9,500
| +7% | +$2.71M |
|
|
HUT
531
PUT
Hut 8
HUT
$10.9B
| $44.3M | 0.02% |
964,100
+573,400
| +147% | +$25.3M |
|
532
PUT
VanEck Durable High Dividend ETF
DURA
$38.9M
| $44.2M | 0.02% |
166,400
+79,100
| +91% | +$2.66M |
|
533
PUT
Elevance Health
ELV
$85.5B
| $43.9M | 0.02% |
125,100
-105,300
| -46% | -$35.6M |
|
534
SPDR Gold Trust
GLD
$141B
| $43.8M | 0.02% |
+110,618
| New | +$42.2M |
|
535
CALL
Shell
SHEL
$245B
| $43.5M | 0.02% |
592,200
-103,600
| -15% | -$7.63M |
|
536
CALL
Dollar Tree
DLTR
$25.2B
| $43.5M | 0.02% |
353,700
+6,000
| +2% | +$643K |
|
537
CALL
BP
BP
$107B
| $43.4M | 0.02% |
1,248,300
-442,800
| -26% | -$15.5M |
|
538
CALL
Abercrombie & Fitch
ANF
$5B
| $43.3M | 0.02% |
343,800
+83,300
| +32% | +$7.28M |
|
539
CALL
Nucor
NUE
$62.1B
| $43.1M | 0.02% |
264,400
+3,600
| +1% | +$541K |
|
540
CALL
Vanguard Information Technology ETF
VGT
$149B
| $42.9M | 0.02% |
455,200
+8,000
| +2% | +$760K |
|
541
PUT
Okta
OKTA
$25.8B
| $42.9M | 0.02% |
495,600
-52,200
| -10% | -$4.56M |
|
542
CALL
Opendoor
OPEN
$3.38B
| $42.9M | 0.02% |
7,350,500
+359,277
| +5% | +$2.57M |
|
543
CALL
EQT Corp
EQT
$32.3B
| $42.6M | 0.02% |
794,100
+279,100
| +54% | +$15.7M |
|
544
CALL
Pan American Silver
PAAS
$21.6B
| $42.5M | 0.02% |
819,800
+325,700
| +66% | +$13.6M |
|
545
Rocket Lab Corp
RKLB
$51.8B
| $42.4M | 0.02% |
+607,651
| New | +$34.8M |
|
546
CALL
Amphenol
APH
$209B
| $42.2M | 0.02% |
312,500
+62,800
| +25% | +$8.4M |
|
547
PUT
Align Technology
ALGN
$12.3B
| $42.2M | 0.02% |
270,400
-17,100
| -6% | -$2.45M |
|
|
PPLT
548
CALL
abrdn Physical Platinum Shares ETF
PPLT
$2.02B
| $42.2M | 0.02% |
+2,262,000
| New | +$34.9M |
|
549
CALL
Live Nation Entertainment
LYV
$42.1B
| $42.1M | 0.02% |
295,100
+37,100
| +14% | +$5.33M |
|
550
CALL
ProShares Ultra S&P500
SSO
$8.36B
| $41.8M | 0.02% |
656,200
-49,400
| -7% | -$2.83M |
|
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.