Find the platform that feels like yours.
Three ways to trade. One serious engine under the hood. bigPRO, bigWeb, and bigMobile are powered by industry-trusted DAS Trader technology and tuned for active traders who care about speed, locates, and execution quality
Pick your weapon.
Whether you live in front of six monitors, work from a laptop in the wild, or fire orders from your phone between meetings, Big Trades by Cobra Trading has a platform built for the way you trade. Each one connects to the same direct-access routing, the same deep locate inventory, and the same expert trade desk.
Features
Platform fee
$99 / month
Free
$30 / month*
*Fee waived when bundled with bigPRO
Operating system
Windows
Any modern browser
iOS & Android
Best for
Active day traders & multi-monitor setups
Trading from any computer, anywhere
Monitoring & quick orders on the go
Multi-monitor support
Customizable layouts
Full customization
(unlimited windows)
Web-optimized
Mobile-optimized
Basic Market Data – Major US Indices, NYSE Level 1, AMEX Level 1, NASD Level 1, and Top of book (US Major Exchanges)
$20/mo add-on
$20/mo add-on
$20/mo add-on
Advanced Market Data Package includes the Basic Market Data Package + Pink Sheets (Level 1 and 2)
$70/mo add-on
$70/mo add-on
$70/mo add-on
Hotkeys
Advanced charting & studies
(40+ studies)
(mobile-optimized)
Real-time market screener
Real-time market news
Stock and options trading
Multi-account management
Short locates
FAQ
Not sure which one fits?
- You want full control. Multi-monitor, hotkeys, custom layouts, market scanners running all session — start with bigPRO.
- You move between machines. Office desktop, laptop at the coffee shop, friend’s computer — bigWeb logs in anywhere with a browser.
- You trade in motion. Travel a lot, manage a smaller book, or just want a real platform on your phone — bigMobile is the one.
- Be ready for anything. Choose bigPRO and get both bigWeb and bigMobile for free.
Can I run more than one platform on the same account?
Yes. All three platforms connect to the same Big Trades account. Most active traders run bigPRO at their desk and bigMobile when they step away.
What about market data?
Basic Market Data – Major US Indices, NYSE Level 1, AMEX Level 1, NASD Level 1, and Top of book (US Major Exchanges) is $20/month.
Advanced Market Data Package includes the Basic Market Data Package + Pink Sheets (Level 1 and 2) is $70/month.
These are exchange pass-through fees, not platform charges.
How do I get started?
Open an account, fund it, and your servicing advisor will activate your credentials and the platform of your choice. You can request a demo before you decide.
Pro execution. Pro tools. Pro support. Big difference.
Trade US equities and options with pro tools. Extended trading hours. Live chat support. Open a Big Trades account today and start with as little as $2,500. Experience the Big difference.