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PZmomo · 2024年05月02日

key rate duration和one-sided up duration

NO.PZ2023040701000079

问题如下:

Muniz poses the following question: “If you expect a steepening of the yield curve, what duration measure provides the best indication of the interest rate risk for a callable bond?”

For the interest rate scenario presented by Muniz, the most appropriate duration measure is:

选项:

A.

key rate duration.

B.

one-sided up duration.

C.

effective duration.

解释:

Correct Answer: A

A bond’s sensitivity to changes in the shape of the yield curve, steepening or flattening, is captured by key rate duration. One-sided duration (up or down) is better than effective or two-sided duration at capturing the interest rate sensitivity of a callable or putable bond but only for a parallel shift in the yield curve, not for changes in the shape of the yield curve.

 key rate duration和one-sided up duration的作用分别是什么?

1 个答案

pzqa31 · 2024年05月05日

嗨,努力学习的PZer你好:


one-side duration可以分成up和down,比如one-sided up duration就是利率上涨,duration 的大小。


KRD是假定Portfolio中全是零息债,每一个关键时间点(债券到期时间)利率变动,其他期限利率不变,对Portfolio value的影响。KDRi=wi*Di,wi为i时刻到期债占portfolio value的权重,Di为i期限债的久期,因为是0息债,所以每一个时间点的现金流都是本金,KDRi表示只有第i个时间点收益率的变动对组合value的影响。Portfolio中有几个关键时间点,就有几个KRD。无论含权还是不含权债券都可以用KRD。

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