老师，这里模型里的Vega不就是volatility吗？0.41>24%呀

问题如下：

6.Based on Solomon’s observation about the model price and market price for the put option in Exhibit 2, the implied volatility for the GPX is most likely:

选项：

less than the historical volatility.

equal to the historical volatility.

greater than the historical volatility.

解释：

A is correct.

The put is priced at $7.4890 by the BSM model when using the historical volatility input of 24%. The market price is $7.20. The BSM model overpricing suggests the implied volatility of the put must be lower than 24%.