旅人祈愿 · 2017年10月04日
问题如下图：
选项：
A. 
B. 
C. 
解释：
How can the $65 investment be counted in the calculation of return. If I invest $100, but the value of the stock goes down to 0 by the end of year. However, I also invest $1000 by the end of that year. Can I say the return of my portfolio is 1000% this year?
源_品职助教 · 2017年10月06日
在计算TWRR，以及MWRR时，最后一期是不会发生额外的外部现金流（或者说最后一期投资者就是把钱取走结算收益），所以你假设的案例是不会在考试中发生的。
题目中的外部现金流发生在其中，所以解法是OK的。
旅人祈愿 · 2017年10月08日
I strongly disagree with that. Obviously, return=value of the stock at T1/ value of the stock at T0. Not "money I invest at T1/ value of the stock at T0". WTF is this thing?
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%你好，问一下。 这个题是用在课程中学过的公式是〈（P1—P0）+I 〉/ P0 算对吧 ？ 〈 35—30+5〉/ 30 = 0.333333
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%0.5是什么………？。？。
NO.PZ2015120604000033 问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%. B.15.00%. C.23.13%. is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13% ring the year2, the hong return is 80 / 70 - 1 = 14.29%这里面第二年的本金部分用的是70，这个70一部分是第二年初买的35，这个理解。那另一半35到底是看成初始购买成本30+分红的5还是说是最初购买的升值部分35计算（不算分红）呢？
NO.PZ2015120604000033 问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%. B.15.00%. C.23.13%. is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13% 老师，想问一下，第一年为什么不是35除以30而是加了个吴用四十除以三十呀？
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%T0是-30，T1是-35+5，T2是80，请问错在哪里。T1价值上升但并没有变现。
