Groww Engineering built 915.Trade, a high-performance web-based trading terminal for professional traders. The platform features a modular architecture with real-time data streaming using binary messaging, Zustand for optimized state management, and React Compiler for automatic optimization. Key features include direct chart trading, dynamic option chains with live Greeks, a unique straddle chart for volatility tracking, and a scalper widget with keyboard shortcuts. The system uses an EventBus with BroadcastChannel API for widget linking across tabs, enabling traders to create synchronized, shareable workspace layouts.
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