Yongan Futures(SH:600927) Yong An Qi Huo·2025-12-29 09:13Group 1: Implied Volatility Index and Historical Volatility - The financial option implied volatility index reflects the 30 - day implied volatility trend as of the previous trading day, and the commodity option implied volatility index is obtained by weighting the implied volatilities of the two - strike options above and below the at - the - money option of the main contract month, reflecting the implied volatility change trend of the main contract [3] - The difference between the implied volatility index and historical volatility, a larger difference indicates higher implied volatility relative to historical volatility, while a smaller difference represents lower implied volatility relative to historical volatility [3] Group 2: Implied Volatility Quantile and Volatility Spread Quantile - The implied volatility quantile represents the current level of the implied volatility of a variety in history. A high quantile means the current implied volatility is high, and a low quantile means the current implied volatility is low [5] - The volatility spread is the implied volatility index plus historical volatility [5]