开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

ddmmyy · 2020年02月20日

问一道题:NO.PZ201710100100000403 第3小题 [ CFA II ]

* 问题详情,请 查看题干

问题如下:

3. Based on Exhibit 1, which fund is expected to produce the greatest consistency of active return?

选项:

A.

Fund X

B.

Fund Y

C.

Fund Z

解释:

C is correct.

The IR measures the consistency of active return. The IR is calculated for the three funds as follows:

IR=RPRBSTD(RPRB)=RASTD(RA)IR=\frac{R_P-R_B}{STD{(R_P-R_B)}}=\frac{R_A}{STD{(R_A)}}

IR for Fund X = (10.0 – 9.4)/5.2 = 0.6/5.2 = 0.12

IR for Fund Y = (11.6 – 9.4)/9.2 = 2.2/9.2 = 0.24

IR for Fund Z = (13.2 – 9.4)/15.1 = 3.8/15.1 = 0.25

Fund Z has the largest IR and thus is expected to produce the greatest consistency of active return

考点:information ratio

解析:题干问的是 greatest consistency of active return持续的超额回报,也就是基金经理主动管理基金的能力,因为衡量指标为information ratio。通过计算,XYZ的IR分别为:0.12,0.24,0.25。因此选C。

老师,算IR公式里分母是STD,为什么不是除以expected volatility?
1 个答案

星星_品职助教 · 2020年02月20日

同学你好,

IR公式的分母是active risk,如果写成标准差的形式是σ(Rp-Rb),而不是fund本身的volatility