股票股指期权：下行升波，看跌情绪上升

Report Summary 1. Core View - The stock index options are experiencing a downward wave increase, indicating a rise in bearish sentiment [1] 2. Market Data Summary 2.1 Underlying Market Statistics - The closing prices of the Shanghai Composite 50 Index, CSI 300 Index, and CSI 1000 Index were 2961.10, 4539.06, and 7373.15 respectively, all showing declines. The trading volumes were 86.18 billion, 372.95 billion, and 304.41 billion hands respectively, with changes of 16.02 billion, 57.94 billion, and 16.01 billion hands [2] - For ETFs, the closing prices of Shanghai Composite 50 ETF, Huatai-PineBridge 300 ETF, and others also mostly declined, with varying trading volumes and changes [2] 2.2 Option Market Statistics - The trading volumes and open interests of various index options and ETF options showed different degrees of change. For example, the trading volume of Shanghai Composite 50 Index Option was 68,793, an increase of 4,243, and the open interest was 77,492, an increase of 248 [2] - The VL-PCR and OI-PCR of different options also varied, reflecting different market sentiment. For instance, the VL-PCR of Shanghai Composite 50 Index Option was 68.12%, and the OI-PCR was 72.11% [2] 2.3 Option Volatility Statistics - The ATM-IV, IV changes, same - term HV, and HV changes of different options were presented. For example, the near - month ATM - IV of Shanghai Composite 50 Index Option was 17.32%, with an IV change of 1.69%, and the same - term HV was 11.68%, with an HV change of - 8.47% [5] 3. Figures and Charts - There are multiple figures and charts for different index options and ETF options, including the full - contract PCR chart, the main - contract skewness chart, the volatility cone chart, and the volatility term structure chart, which visually display the market conditions of each option [9][14][18]