NO.PZ2018113001000073
问题如下:
Darnell, a portfolio manager, makes two
statements about the implied volatility.
Statement 1: The volatility smile shows
that OTM puts have higher implied volatility than ATM puts
Statement 2: The volatility skew shows that
the ITM put has higher implied volatility compared to the ATM put.
Which of the following statements is true?
选项:
A.Statement 1
Statement 2
Both
解释:
A is correct
由下图可知:volatility smile显示OTM或者ITM的看跌期权对应的隐含波动率,都高于ATM状态下的看跌期权的隐含波动率,因此表述1正确。
volatility skew显示,OTM的看跌期权对应的隐含波动率高于ATM状态下的看跌期权隐含的波动率;而ITM的看跌期权的隐含波动率低于ATM的看跌期权的隐含波动率。
在volatility smile发现OTM对比ITM的put, OTM会更高一些, 这是一个正常的结论吗? 因为老师上课画的volatility smile左右两边一样高, 但是原版书图形是OTM对比ITM更高一些, 那我可以总结说OTM put 比ITM put 隐含波动性更高吗?