股票股指期权：上行升波，偏度向负偏移动

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - Not provided in the given content Summary by Related Catalogs Option Market Data Statistics - Underlying Market Statistics: The closing prices, price changes, trading volumes, and other data of various indexes and ETFs are presented, including the Shanghai Composite 50 Index, CSI 300 Index, and others. For example, the Shanghai Composite 50 Index closed at 2728.43, up 11.80, with a trading volume of 31.43 billion lots [1]. - Option Market Statistics: The trading volumes, changes, open interests, and other data of various index options and ETF options are provided. For instance, the trading volume of Shanghai Composite 50 Index options was 20,579, a decrease of 3,760, and the open interest was 54,113, an increase of 1,521 [1]. Option Indicator Data Statistics - Option Volatility Statistics (Near - Month): Data such as ATM - IV, IV changes, same - term HV, HV changes, Skew, Skew changes, and VIX are given for different options. For example, the ATM - IV of Shanghai Composite 50 Index options was 13.21%, with an IV change of 0.31% [4]. - Option Volatility Statistics (Next - Month): Similar data for the next - month options are presented, including ATM - IV, IV changes, same - term HV, HV changes, Skew, and Skew changes [4]. Option Charts - Index Option Charts: For each index option (e.g., Shanghai Composite 50 Index options, CSI 300 Index options, and CSI 1000 Index options), there are charts showing the full - contract PCR, the main - contract skewness trend, the volatility cone, and the volatility term structure [6][10][15]. - ETF Option Charts: For each ETF option (e.g., Shanghai Composite 50 ETF options, Huatai - Baorui 300 ETF options), there are charts presenting the main - contract volatility trend, the full - contract PCR, the main - contract skewness trend, the volatility cone, and the volatility term structure [22][24][26].