mock42第37题 efficient, correct, return, active, equity

invic

According ｍｖｏ，semi active equity tracking error is3.7 larger than 3.3 while active return is 2.2 smaller than 2.3, so semi equity should be least efficient ,but correct answer is a,why ? Thanks

badonkus

同学这题主要就是考察information ratio，该比率越小，说明在给定tracking risk的水平下active return越小，即其越没有efficient，题干中已经直接给出了information ratio的值，选最小的那个，即A。