是因为股票价格不可能为负吗？不知道是否这么理解

问题如下：

Question If a stock’s continuously compounded return is normally distributed, then the distribution of the future stock price is best described as being:

选项：

A.normal. B.a Student’s t. C.lognormal.

解释：

Solution

C is correct. If a stock’s continuously compounded return is normally distributed, then the future stock price is necessarily lognormally distributed.

A is incorrect. If a stock’s continuously compounded return is normally distributed, then future stock price is necessarily lognormally distributed.

B is incorrect. If a stock’s continuously compounded return is normally distributed, then future stock price is necessarily lognormally distributed.