NO.PZ2019010402000028
问题如下:
If the market price for the call option is $5.4, and the BSM model price for this option is 5.35, which of the following is correct? Assume historical volatility is an input to the BSM model.
选项:
A.implied volatility < historical volatility
B.implied volatility = historical volatility
C.implied volatility > historical volatility
解释:
C is correct.
考点:Implied volatility
解析:
根据市场价格反求出来的volatility被称为implied volatility,而基于historical volatility计算出来的价格是model price。现在market price>model price,volatility与价格是正相关,所以implied volatility>historical volatility.
Q1: implied volitity % < market price volitity %, 则低估,long implied volityty;
Q2: 结合到这个道题,为什么BSM模型的price5.35< market price 5.4, 反映的是implied volityty> historical volitity?
搞晕了