什么是期权的波动率策略？

Group 1 - The core concept of options volatility strategy emphasizes the importance of analyzing volatility over the option price itself, as volatility is a critical indicator for investors when trading options [1] - Volatility can be categorized into implied volatility and historical volatility, with implied volatility reflecting market expectations of future price fluctuations [6][7] - The article outlines various volatility strategies, including long volatility strategies such as buying straddles and strangles, which are used when significant price movements are anticipated without a clear direction [3][4][6] Group 2 - A long straddle strategy involves purchasing both a call and a put option with the same strike price and expiration date, allowing for profit if the underlying asset's price moves significantly in either direction [3] - A long strangle strategy entails buying a call option with a higher strike price and a put option with a lower strike price, which is generally less expensive than a straddle and can yield high returns during significant price movements [4] - Directly purchasing volatility index futures, such as VIX futures, is another strategy employed when investors expect an increase in market volatility, allowing them to profit from rising volatility [4] Group 3 - The article also discusses short volatility strategies, where investors can profit from a decrease in volatility by selling options when volatility is expected to revert to its mean [7] - Historical volatility is calculated using past data, while implied volatility is derived from option pricing models, indicating market sentiment regarding future volatility [7] - The strategies discussed can be particularly effective during events that cause significant market fluctuations, such as geopolitical tensions or economic announcements [6][7]