问题如下:
An ETF’s reported tracking error is typically measured as the:
选项:
A.standard deviation of the difference in daily returns between an ETF and its benchmark.
difference in annual return between an ETF and its benchmark over the past 12 months.
annualized standard deviation of the difference in daily returns between an ETF and its benchmark.
解释:
C is correct. An ETF’s tracking error is typically reported as the annualized standard deviation of the daily differential returns of the ETF and its benchmark.
我知道tracking error通常是要算年化的,不过不是也要先算出daily的再算年化的吗?定义里到底需不需要体现daily difference呢?