vega

A position with high vega profits when implied volatility increases, regardless of price direction.高 Vega 的头寸在隐含波动率增加时获利，而与价格方向无关。

Long straddles have high vega exposure and profit from any large price move or volatility expansion before expiry.跨式多头（Long straddles）具有高 Vega 敞口，并在到期前的任何大幅价格变动或波动率扩张中获利。