Time-Varying Volatility

Analysis

Time-varying volatility, within cryptocurrency and derivatives markets, represents the non-constant nature of price fluctuations over time, differing significantly from models assuming static volatility. Its accurate estimation is crucial for pricing options and managing risk, as implied volatility surfaces are rarely flat, exhibiting patterns related to the term structure of volatility and skew. Consequently, traders employ models like stochastic volatility and GARCH to capture these dynamics, recognizing that volatility clusters—periods of high volatility tend to be followed by periods of high volatility, and vice versa—are prevalent.