implied volatility

Implied volatility spiked to 120% as traders rushed to buy options ahead of the major announcement.随着交易者在重大公告发布前争相购买期权，隐含波动率飙升至 120%。

Selling options when implied volatility is elevated can be profitable if the actual realised volatility stays lower.如果在隐含波动率升高时卖出期权，而实际实现的波动率保持较低，则可能会获利。