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Melodyxie · 2020年01月05日

问一道题:NO.PZ201812020100000404

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问题如下:

The two-bond hypothetical portfolio’s immunization goal is to lock in a rate of return equal to:

选项:

A.

9.55%.

B.

9.85%.

C.

10.25%

解释:

B is correct.

Immunization is the process of structuring and managing a fixed-income portfolio to minimize the variance in the realized rate of return and to lock in the cash flow yield (internal rate of return) on the portfolio, which in this case is 9.85%.

请问这个知识点在讲义哪里?

1 个答案

发亮_品职助教 · 2020年01月06日

嗨,从没放弃的小努力你好:


“请问这个知识点在讲义哪里?”


在单期负债匹配里学到的。



对于单期负债匹配,投资期结束资产的目标是已知的,就是负债的价值FV,资产现在买入的价值已知,就是PV,我们的目的就是保证资产PV能够顺利实现一个增长率、投资期结束时顺利增长到FV来偿还负债。

如何确保资产稳定地实现这个收益率增长,不受利率的变动影响呢?

在单期负债匹配里,我们是说当资产的Macaulay duration = Investment horizon时,债券资产能有一个确定性的收益,这个收益率不会受到利率变动的影响。所以资产PV能够确保实现一个收益率,顺利增值到FV偿还负债。

最终发现,单期负债匹配,实际上就是保证债券组合PV能够稳定地实现这个期初既定的收益率。这个收益率就是Cash flow yield。

这就对应解析里的:Lock in the cash flow yield,锁定了Cash flow yield的收益。


参考讲义83页:

 


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