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moon · 2022年02月23日

计算change in price based on yield and yield spread,直接用5.19*0.15%不行吗,为什么要考虑convexity变化?

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NO.PZ201812020100000205

问题如下:

Based on Exhibit 2, the total expected return of the fund’s global bond portfolio is closest to:

选项:

A.

0.90%.

B.

2.20%.

C.

3.76%.

解释:

B is correct .

The total expected return is calculated as:

Total expected return = Rolling yield + E(Change in price based on investor’s yield and yield spread view) – E(Credit losses) + E(Currency gains or losses) Rolling yield = Yield income + Rolldown return

计算change in price based on yield and yield spread,直接用5.19*0.15%不行吗,为什么要考虑convexity变化?

1 个答案

pzqa015 · 2022年02月24日

嗨,从没放弃的小努力你好:


duration只能衡量收益率小幅改变对债券价格的影响,到底多少算小幅改变,也没有一个定量的标准。duration+convexity衡量的是收益率大幅变动对债券价格的影响。这类题目如果没有给出convexity,就不用考虑convexity的变化,如果给出convexity,是要考虑的。

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