波动率数据日报-20250916

Report Summary 1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints - Not provided in the content 3. Summary by Related Catalogs 3.1 Implied Volatility Index, Historical Volatility and Their Spread Charts - 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 weighted by the implied volatilities of the two - strike prices above and below the at - the - money option of the main contract, reflecting the implied volatility change trend of the main contract [3] - The difference between the implied volatility index and historical volatility: a larger difference means the implied volatility is relatively higher than historical volatility, and a smaller difference means the opposite [3] 3.2 Implied Volatility Quantile and Volatility Spread Quantile Ranking Chart - The implied volatility quantile represents the current level of a variety's implied volatility in history. A high quantile means the current implied volatility is high, and a low quantile means it is low [5] - The volatility spread is the difference between the implied volatility index and historical volatility [5] - Specific implied volatility quantile rankings include 0.75 for 50ETF, 0.74 for 300 Index, 0.67 for PTA, etc. [5][6][8]