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Thevolatility skew is the difference inimplied volatility (IV) betweenout-of-the-money options, at-the-money options, and in-the-money options.
波动率倾斜是指隐含波动率(IV)在价外期权、平价期权和价内期权之间的差异。
The volatility skew, which isaffected by sentiment and the supply and demand relationship, provides information on whether fund managers prefer to write calls or puts.
受市场情绪和供需关系影响的波动率倾斜,提供了基金经理是倾向于看涨还是看跌的信息。
Reverse skews occur when the implied volatility is higher on lower options strikes. It is most commonly seen in index options or other longer-term options. This model seems to occur at timeswhen investors have market concerns and buy puts to compensate for the perceived risks.
低执行价格的隐含波动率较高时,反向倾斜发生。这在指数期权或其他长期期权中最为常见。这种模式通常发生在投资者有市场担忧、买入看跌期权以补偿所感知风险的时候。
Forward-skew IV values go up at higher points in correlation with the strike price. This is best represented within the commodities market, where a lack of supply can drive prices up. Examples of commodities often associated with forward skews include oil and agricultural items.
与执行价格相关,正向倾斜的隐含波动率在更高的执行价格上升。这在大宗商品市场表现得最为明显,因为供应不足会推高价格。经常与前向倾斜相关的商品包括石油和农产品。