NO.PZ2023052302000009
问题如下：
The price of a stock at t = 0 is USD208.25 and at t = 1 is USD186.75. The continuously compounded rate of return, r1,T for the stock from t = 0 to t = 1 is closest to:
选项：
A.
–10.90 percent.
B.
–10.32 percent.
C.
11.51 percent
解释：
A is correct. The continuously compounded return from t = 0 to t = 1 is r0,1 =ln(S1/S0) = ln(186.75/208.25) = –0.10897 = –10.90%.
In是什么意思？为什么不是208.25*（1+r）=186.75，然后求r？
