Group 1: Explanation of Volatility Metrics - Financial option implied volatility index reflects the 30 - day implied volatility (IV) trend as of the previous trading day. Commodity option implied volatility index is obtained by weighting the IV of the upper and lower two - strike options of the at - the - money option of the main contract month, showing the IV change trend of the main contract [2] - The difference between the IV index and historical volatility (HV) indicates the relative level of IV to HV. A larger difference means IV is relatively higher than HV, and a smaller difference means IV is relatively lower [2] Group 2: Volatility Data Visualization - There are charts showing the IV, HV, and IV - HV differences of various financial and commodity options, including 300 - stock index, 50ETF, 1000 - stock index, 500ETF, and many commodity options like silver, gold, soybean meal, etc [3] Group 3: Implied Volatility and Historical Volatility Quantiles - Implied volatility quantiles represent the current IV level of a variety in history. High quantiles mean the current IV is high, and low quantiles mean it is low. The data shows the implied and historical volatility quantiles of different options such as 50ETF, PTA, 300 - stock index, etc [4][5]