Nous Markets

The Challenge

Traders needed a unified platform to identify arbitrage opportunities across both traditional stock exchanges and cryptocurrency markets. The challenge was building a system that could:

• Stream real-time price data from multiple financial APIs simultaneously
• Process thousands of price updates per second with sub-second latency
• Calculate and display arbitrage spreads in real-time
• Handle both traditional equities and crypto markets with different data structures
• Provide intuitive visualizations that help traders make quick decisions

Traditional tools are siloed—you’d need separate platforms for stocks and crypto, making cross-market arbitrage nearly impossible to spot manually.

The Approach

Built a Next.js application with TypeScript for type safety and performance. The architecture focused on real-time data processing:

Data Layer:

• Integrated multiple financial APIs (traditional market data providers + crypto exchanges)
• Implemented WebSocket connections for real-time streaming
• Built a unified data normalization layer to handle different API formats
• Created efficient data processing pipelines to calculate spreads on-the-fly

Visualization:

• Developed custom chart components for displaying price differences
• Built filtering and alerting systems for significant arbitrage opportunities
• Implemented responsive design for traders monitoring multiple screens

Performance:

• Optimized data processing to handle high-frequency updates without UI lag
• Implemented intelligent caching and data deduplication
• Used efficient state management to prevent unnecessary re-renders

The Outcome

Nous Markets enables traders to identify arbitrage opportunities across both traditional and crypto markets in real-time. The platform successfully processes thousands of price updates per second while maintaining sub-second latency for spread calculations.

Traders can now:

• Monitor price differences across multiple exchanges simultaneously
• Receive alerts for significant arbitrage opportunities
• Make faster, data-driven decisions with unified market visibility
• Access both traditional and crypto markets from a single dashboard

The platform’s architecture supports scaling to additional markets and exchanges as the product evolves.

Tech Stack

• Next.js 14 with App Router and TypeScript
• Real-time WebSocket connections for live data streaming
• Multiple financial data APIs (stocks and crypto)
• Custom data visualization components
• High-performance data processing and caching
• Responsive design for multi-screen trading setups