股指期权波动率易升难降

Group 1 - The core viewpoint of the articles indicates a divergence in the performance of major indices, with a notable increase in trading volume, turnover, and open interest in stock index options, reflecting a relatively optimistic market sentiment [1] - The implied volatility (IV) of stock index options has risen, with IO, MO, and HO options showing IVs of 21.11%, 29.84%, and 19.47% respectively, indicating a premium over historical volatility levels [1] - The put-call ratio (PCR) for trading volume and turnover has reached a phase low, while open interest PCR remains relatively high, suggesting a trend of increasing positions among put option sellers [1] Group 2 - As the indices rise, there are signs of upward shifting positions in the stock index options market, with IO, MO, and HO holdings concentrated at specific strike prices [2] - The current market volatility is steadily increasing, and aggressive investors are encouraged to continue implementing vertical spread strategies in the context of a fluctuating upward trend in stock indices [2]