Log Returns

Calculation

Log returns, within cryptocurrency and derivatives markets, represent the continuously compounded rate of return, differing from simple percentage changes by accounting for the effect of time. This methodology is favored due to its statistical properties, particularly in time series analysis, enabling additive independence of returns—a crucial assumption for many quantitative models. Employing the natural logarithm of price ratios provides a symmetrical distribution, mitigating biases inherent in arithmetic returns when analyzing volatility and risk. Accurate calculation is paramount for options pricing models, such as Black-Scholes, and for backtesting trading strategies involving complex derivative instruments.