期权隐含波动率表现相对平稳

Market Overview - A-shares opened high but closed low on May 13, with total trading volume at 1.33 trillion yuan, unchanged from the previous trading day [1] - Over 3200 stocks declined, while sectors such as port shipping, photovoltaic, banking, and pharmaceuticals saw gains [1] - The Shanghai Stock Exchange 50 Index and CSI 300 Index rose, while other indices fell [1] Options Market Activity - Total options trading volume in the Shanghai and Shenzhen markets was 5.19 million contracts, down from 5.39 million contracts the previous day [1] - Total open interest increased to 8.91 million contracts, up from 8.16 million contracts [1] - The trading volume of the SSE 50 ETF options decreased by 31.53%, while open interest increased by 10.42% [1] - The SSE 50 ETF options traded 674,400 contracts, down from 985,000 contracts the previous day, with open interest at 1.47 million contracts, up from 1.33 million contracts [1] Options Position Changes - For the May contracts, a total of 75,100 contracts were added, with call options increasing by 32,900 contracts and put options by 42,200 contracts [1] - The increase in both call and put options occurred in the shallow out-of-the-money positions, with a broader increase in call options, indicating a potential continuation of market volatility [1] CSI 300 Options Performance - The trading volume for CSI 300 options also showed a decline, with the Shenzhen Stock Exchange's CSI 300 ETF options down by 32.85% and the Shanghai Stock Exchange's down by 23.96% [2] - Open interest for CSI 300 ETF options increased, with the Shenzhen Stock Exchange up by 11.92% and the Shanghai Stock Exchange up by 9.84% [2] - The total increase in open interest for the Shanghai Stock Exchange's CSI 300 ETF options was 53,400 contracts, with call options increasing by 28,200 contracts and put options by 25,200 contracts [2] Volatility Analysis - Implied volatility remained stable, with the SSE 50 ETF at 12.69% as of May 13 [3] - Historical volatility for the SSE 50 ETF was 19.02%, while the CSI 300 Index was at 22.06% [3] - Overall, the A-share market showed a low volatility environment, with both call and put options increasing in shallow out-of-the-money positions, suggesting a short-term market consolidation [3]