Group 1: Report Information - Report Title: Stock Index Option Data Daily Report [2] - Date: September 17, 2025 [3] - Research Institute: Guomao Futures Research Institute [3] - Analyst: Li Zeju from the Financial Derivatives Center [3] - Data Sources: Wind, Guomao Futures Research Institute [3] Group 2: Market Overview - Index Performance: The Shanghai Composite Index rose 0.04% to 3861.87 points, the Shenzhen Component Index rose 0.45%, the ChiNext Index rose 0.68%, the Beixin 50 rose 0.63%, the Kechuang 50 rose 1.32%, the Wind All A rose 0.48%, the Wind 4500 fell 0.1%, and the CSI A500 rose 0.03% [5] - A-share Trading Volume: The total trading volume of A-shares was 2.37 trillion yuan, compared with 2.3 trillion yuan the previous day [5] Group 3: Index Quotes | Index | Turnover (billion yuan) | Closing Price | Change (%) | Volume (billion) | | --- | --- | --- | --- | --- | | SSE 50 | 1554.30 | 2947.8222 | -0.50 | 4523.3367 | | CSI 300 | - | 7483.6282 | -0.21 | 249.27 | | CSI 1000 | - | - | 0.92 | 309.01 | [3] Group 4: CFFEX Stock Index Option Trading | Index | Call Option Volume (million contracts) | Put Option Volume (million contracts) | Volume PCR | Call Option Open Interest (million contracts) | Put Option Open Interest (million contracts) | Open Interest PCR | | --- | --- | --- | --- | --- | --- | --- | | SSE 50 | 2.94 | 1.67 | 0.57 | 3.83 | 0.61 | 0.61 | | CSI 300 | 0.64 | 23.86 | 0.80 | 10.60 | 14.99 | 0.80 | | CSI 1000 | 37.50 | 20.75 | 0.81 | 16.75 | 16.89 | 1.09 | [3] Group 5: Volatility Analysis - SSE 50 Volatility: Analyzed historical volatility, historical volatility cone, and volatility smile curve [3][4] - CSI 300 Volatility: Analyzed historical volatility, historical volatility cone, and volatility smile curve [3][4] - CSI 1000 Volatility: Analyzed historical volatility, historical volatility cone, and volatility smile curve [3][4]