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 | |
|---|---|---|---|---|---|---|
101
PUT
Spotify
SPOT
$100B
| $391M | 0.14% |
673,500
-67,600
| -9% | -$42.3M |
|
102
CALL
Direxion Daily Technology Bull 3x ETF
TECL
$6.21B
| $391M | 0.14% |
7,157,800
-245,000
| -3% | -$31.3M |
|
|
103
iShares Russell 2000 ETF
IWM
$83B
| $390M | 0.14% |
1,585,486
+1,228,526
| +344% | +$302M |
|
104
PUT
Salesforce
CRM
$158B
| $383M | 0.14% |
1,446,400
+52,500
| +4% | +$13M |
|
105
CALL
Qualcomm
QCOM
$176B
| $382M | 0.14% |
2,236,000
+1,051,400
| +89% | +$180M |
|
106
PUT
Intuit
INTU
$89B
| $380M | 0.14% |
573,400
+21,900
| +4% | +$14.5M |
|
|
107
Tesla
TSLA
$1.3T
| $374M | 0.14% |
830,913
+355,800
| +75% | +$158M |
|
108
CALL
GE Vernova
GEV
$264B
| $372M | 0.14% |
568,900
+125,100
| +28% | +$76.2M |
|
|
UWC
109
PUT
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $364M | 0.13% |
6,529,400
+3,561,600
| +120% | +$198M |
|
110
CALL
ServiceNow
NOW
$129B
| $358M | 0.13% |
2,334,200
+662,700
| +40% | +$114M |
|
111
CALL
PayPal
PYPL
$50.5B
| $353M | 0.13% |
6,042,400
+1,197,300
| +25% | +$77.7M |
|
112
PUT
Pinduoduo
PDD
$131B
| $342M | 0.12% |
3,015,700
+197,900
| +7% | +$24.6M |
|
|
113
PUT
ServiceNow
NOW
$129B
| $332M | 0.12% |
2,168,200
-257,800
| -11% | -$44.2M |
|
114
PUT
Reddit
RDDT
$31.1B
| $331M | 0.12% |
1,440,800
-44,100
| -3% | -$9.27M |
|
115
PUT
MongoDB
MDB
$32.1B
| $330M | 0.12% |
786,300
+53,200
| +7% | +$19.4M |
|
116
PUT
Citigroup
C
$226B
| $325M | 0.12% |
2,781,400
+242,000
| +10% | +$25.1M |
|
117
CALL
Shopify
SHOP
$195B
| $319M | 0.12% |
1,982,300
+56,200
| +3% | +$9.02M |
|
|
118
PUT
Shopify
SHOP
$195B
| $303M | 0.11% |
1,885,100
-67,100
| -3% | -$10.8M |
|
|
119
CALL
MongoDB
MDB
$32.1B
| $301M | 0.11% |
718,000
-18,600
| -3% | -$6.77M |
|
120
CALL
lululemon athletica
LULU
$14.6B
| $300M | 0.11% |
1,441,600
-601,300
| -29% | -$109M |
|
|
CRWV
121
CALL
CoreWeave
CRWV
$49.5B
| $296M | 0.11% |
+4,134,800
| New | +$419M |
|
122
PUT
Snowflake
SNOW
$115B
| $295M | 0.11% |
1,345,100
+252,100
| +23% | +$61.5M |
|
|
123
CALL
Spotify
SPOT
$100B
| $285M | 0.1% |
490,400
+21,600
| +5% | +$13.5M |
|
|
124
PUT
lululemon athletica
LULU
$14.6B
| $282M | 0.1% |
1,356,300
-90,400
| -6% | -$16.4M |
|
|
125
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$6.21B
| $282M | 0.1% |
5,069,000
+1,256,900
| +33% | +$161M |
|
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.