Quant Trading Systems: Architecture & Infrastructure › Quant Trading Systems and Infrastructure

A quantitative trading strategy is only as good as the system that executes it. Throughout this book, we've developed sophisticated models for pricing derivatives, managing risk, and generating alpha through various trading strategies. However, transforming a promising backtest into a reliable production system requires infrastructure that tolerates data and execution failures. This infrastructure must handle data ingestion, signal generation, risk monitoring, and order execution while maintaining the speed and reliability necessary for financial markets.

This chapter examines the architecture and components of professional quantitative trading systems. We'll explore how data flows from exchanges through your strategy engine to execution, the software and hardware considerations that determine whether you can compete in different market niches, and the critical safeguards that prevent catastrophic failures. Whether you're building a low-frequency systematic portfolio or a high-frequency market-making system, understanding these infrastructure principles is essential for translating quantitative research into profitable trading.