单选题 Index funds are:
  • A. on average underpriced by 15%, but this underpricing varies over time, which supports the EMH.
  • B. on average overderpriced by 15%, but this overpricing varies over time, which supports the EMH.
  • C. security portfolios designed to duplicate the composition and therefore the performance of a selected market index series.
【正确答案】 C
【答案解析】Index funds are security portfolios designed to duplicate the composition and therefore the performance of a selected market index series.