问题如下:
Analysts make two statements about information ratio:
Statement one: IR is affected by the addition of cash or the use of leverage
Statement two: IR is affected by the aggressiveness of active weight.
Which of the following is correct?
选项:
A. only statement one is correct.
B. only statement two is correct.
C. both statement one and two are correct.
解释:
A is correct.
考点:IR的2个推论
解析:推论一是IR is affected by the addition of cash or the use of leverage,这里cash的权重提升,IR会下降。
推论二 IR is unaffected by the aggressiveness of active weight,投的越激进,回报就会增加,同时风险也会增加,所以IR不变。
为什么a是正确的呢?SR不受cash和leverage的影响,IR就也不受影响吗?