NO.PZ2020011303000200
问题如下：
A bond paying a coupon at the rate of 6% is held for six months. The price at the beginning of the six months is 102 and the price at the end of the six months is 101. What is the gross return?
解释：
题目问：债券的coupon rate是6%，持有期是6个月，债券价格在6个月初是102，6个月后是101，求gross return是多少？
The gross return is (3+101-102)/102=0.0196 or 1.96%.
gross return和realize return是一样的吗？
