NO.PZ2020033001000085
问题如下：
Which of the following statement is most accurate regarding equity option volatility?
选项：
A.Implied price volatility is higher for away-from-the-money equity options, no matter call or put.
B."Crashophobia" indicates that when stock prices decline, actual equity volatility increases.
C.Traders believe the probability of large up movements in price is similar to large down movements when compared to the lognormal distribution.
D.Increasing leverage at lower equity prices results in increasing volatility.
解释：
D is correct.
考点：Volatility smile
解析：
A is incorrect.
There is higher implied price volatility for low strike price equity options.
B is incorrect.
"Crashophobia" is based on the idea that large price declines are more likely than assumed in Black-Scholes- Merton prices, not that volatility increases when prices decline.
C is incorrect.
Compared to the lognormal distribution, traders believe the probability of large up movements in price is lower than large down movements.
这个题的d有点不太理解为什么会说at a lower equity price
如果是杠杆增加，σ就一定会增加吗？为什么给了一个lower equity price的条件呢？
