Order Book Decay Rate

Calculation

Order Book Decay Rate quantifies the erosion of liquidity within a limit order book over a specified timeframe, reflecting the rate at which unfilled orders are cancelled or expire. This metric is particularly relevant in cryptocurrency markets due to their fragmented nature and susceptibility to rapid price fluctuations, impacting execution quality. A higher decay rate suggests diminishing market depth and potentially increased price impact for larger trades, influencing algorithmic trading strategies and risk assessments. Understanding this rate allows for more accurate modeling of transient liquidity and informed decision-making regarding order placement and sizing.