Order Arrival Timestamps

Algorithm

Order arrival timestamps represent the precise chronological sequence in which trading instructions reach an exchange’s matching engine, forming a critical data stream for market microstructure analysis. These timestamps are fundamental to understanding order book dynamics, particularly in high-frequency trading environments where latency is paramount. Accurate recording and analysis of these data points enable the reconstruction of trade events and the identification of potential front-running or manipulative behaviors. The granularity of these timestamps, often measured in microseconds or nanoseconds, directly impacts the ability to model order flow and assess market quality.