核心观点 主要观点 • 上周各期权隐含波动率表现为先扬后抑震荡回落格局，周一至周三盘中受海外流动性等因素影响隐含波动率出 现局部冲高，但我们亦注意到此过程中国内A股韧性十足，周四周五随着市场情绪的修复隐含波动率再度创出此 轮新低。当前11月IO、HO和MO期权平值隐波均值分别在13.95%、14%和18.3%左右，与30日历史波动率相比分别 溢价-2.89个百分点、-2个百分点和-0.3个百分点左右，溢价整体处于历史偏低水平，预计隐波继续回落空间相 对有限，波动率聚集性特征下或将继续呈现低位震荡格局。 • 隐波的不断回落显示期权市场更多以震荡上行进行定价，短期各指数向上加速概率仍旧偏低。 股指期权 • 持仓PCR值出现明显上行，看涨期权卖方在上周最后两个交易日均有明显减仓趋势，显示资金观点更多认为指数 下方空间不大。 • MO看跌期权持仓密集区在行权价7400点以下区域，IO看跌期权则在行权价4700点处依旧持仓极高，但结合技术 形态我们更倾向于用上周低点附近作为11月看跌期权卖方的防守区域。 2 • 综合而言，11月合约剩余时间将进入最后两周，时间价值衰减加快。一方面前期11月虚值看跌期权卖方仍可考 虑继续 ...

Core Insights - The overall financial options market showed a total trading volume of 690 million contracts in the first half of 2025, with a daily average trading volume of 6.39 million contracts and a total trading value of 589.44 billion yuan, reflecting a mixed performance compared to the same period in 2024 [1] Trading Volume and Market Share - The trading volume of options related to small and mid-cap indices, such as the CSI 1000 Index options and the Huatai-PineBridge Innovation 50 ETF options, saw significant increases, with the latter experiencing a daily average trading value growth of 42.09% compared to 2024 [2] - The CSI 1000 Index options market share rose to 36.13%, while the Southern CSI 500 ETF options followed with a 22.12% share, indicating a market preference for trading small-cap index options due to their higher elasticity [2] Volatility Trends - Implied volatility for options generally trended downward in the first half of the year, with notable spikes following the imposition of "reciprocal tariffs" by the U.S. in early April, where IO and MO options reached highs of approximately 50% and 70% respectively [3] - The implied volatility for the CSI 300 Index and CSI 1000 Index options has dropped to historical lows of 13% and 18%, respectively, indicating a low volatility environment, but with a premium over historical volatility still above 3% [4][9] Strategy Performance - Selling put options yielded positive results, with absolute returns of 7.08% and 8.56% for at-the-money and in-the-money options, respectively, outperforming the CSI 1000 Index by 0.39% and 1.87% [5] - The dual selling strategy of simultaneously selling out-of-the-money call and put options showed stable performance, with absolute returns of 8.99% and 5.95% for IO and HO options, although both strategies faced significant drawdowns post-Qingming Festival [7][9] Market Dynamics - The liquidity in the financial options market showed a noticeable decline in the second quarter compared to the first quarter, with a clear preference for trading small-cap index options [9] - The potential for a resurgence in volatility is anticipated, particularly during significant events such as the Central Political Bureau meeting and U.S.-China tariff negotiations, suggesting that option sellers should remain vigilant [4][9]