股票股指期权：上行降波，可考虑备兑策略。

General Information - The report date is August 11, 2025 [1] - The core view is that for stock index options, with the upward movement and decreasing volatility, a covered call strategy can be considered [1] Market Data Statistics Underlying Market Statistics - The closing price of the Shanghai Stock Exchange 50 Index was 2789.90, up 0.72, with a trading volume of 43.48 billion hands, an increase of 4.56 billion hands. The current - month synthetic futures price was 2790.47, with a basis of 0.57, and the next - month synthetic futures price was 2793.13, with a basis of 3.24 [2] - The closing price of the CSI 300 Index was 4122.51, up 17.54, with a trading volume of 190.44 billion hands, an increase of 17.27 billion hands. The current - month synthetic futures price was 4119.40, with a basis of - 3.11, and the next - month synthetic futures price was 4109.87, with a basis of - 12.64 [2] - The closing price of the CSI 1000 Index was 6943.94, up 105.81, with a trading volume of 260.97 billion hands, an increase of 9.50 billion hands. The current - month synthetic futures price was 6926.33, with a basis of - 17.60, and the next - month synthetic futures price was 6860.13, with a basis of - 83.80 [2] Option Market Statistics - For the Shanghai Stock Exchange 50 Index Option, the trading volume was 44922, an increase of 15604, the open interest was 78144, an increase of 3462, VL - PCR was 59.91%, OI - PCR was 53.47%, the C - maximum open interest (near - month) was 2800, and the P - maximum open interest (near - month) was 2750 [2] - For the CSI 300 Index Option, the trading volume was 116426, an increase of 37090, the open interest was 211865, an increase of 2426, VL - PCR was 55.35%, OI - PCR was 75.11%, the C - maximum open interest (near - month) was 4150, and the P - maximum open interest (near - month) was 4100 [2] - For the CSI 1000 Index Option, the trading volume was 321756, an increase of 105966, the open interest was 294708, an increase of 1052, VL - PCR was 77.77%, OI - PCR was 115.94%, the C - maximum open interest (near - month) was 7000, and the P - maximum open interest (near - month) was 6500 [2] Option Volatility Statistics Near - Month - The ATM - IV of the Shanghai Stock Exchange 50 Index Option was 11.76%, with an IV change of 0.07%, the same - term HV was 3.67%, with an HV change of - 3.47%, Skew was 3.19%, with a Skew change of 4.83%, and VIX was 17.79, with a VIX change of 0.750 [5] - The ATM - IV of the CSI 300 Index Option was 11.12%, with an IV change of - 0.13%, the same - term HV was 4.46%, with an HV change of - 2.43%, Skew was 3.96%, with a Skew change of 15.32%, and VIX was 17.71, with a VIX change of 0.081 [5] - The ATM - IV of the CSI 1000 Index Option was 16.44%, with an IV change of - 0.36%, the same - term HV was 13.83%, with an HV change of 3.68%, Skew was 0.27%, with a Skew change of 6.94%, and VIX was 22.28, with a VIX change of 0.321 [5] Next - Month - The ATM - IV of the Shanghai Stock Exchange 50 Index Option was 14.13%, with an IV change of 0.11%, the same - term HV was 8.00%, with an HV change of - 0.01%, and Skew was 9.40%, with a Skew change of 5.12% [5] - The ATM - IV of the CSI 300 Index Option was 14.25%, with an IV change of - 0.14%, the same - term HV was 8.70%, with an HV change of 0.04%, and Skew was 7.35%, with a Skew change of 3.52% [5] - The ATM - IV of the CSI 1000 Index Option was 18.15%, with an IV change of 0.13%, the same - term HV was 10.81%, with an HV change of 0.66%, and Skew was 0.20%, with a Skew change of 1.21% [5] Option Types and Related Charts Shanghai Stock Exchange 50 Index Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [9] CSI 300 Index Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [13] CSI 1000 Index Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [17] Shanghai Stock Exchange 50ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [21] Huatai - Peregrine 300ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [28] Southern CSI 500ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [38] ChinaAMC STAR 50ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [43] E Fund STAR 50ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [53] Harvest 300ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [57] Harvest CSI 500ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [59] ChiNext ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [66] Shenzhen 100ETF Option - There are charts of the full - contract PCR, the main - contract skew trend, the volatility cone, and the volatility term structure [68]