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积极向上 · 2023年05月10日

如何判断是buy and hold?

NO.PZ2021120102000002

问题如下:

An analyst manages an active fixed-income fund that is benchmarked to the Bloomberg Barclays US Treasury Index.

This index of US government bonds currently has a modified portfolio duration of 7.25 and an average maturity of 8.5 years. The yield curve is upward-sloping and expected to remain unchanged. Which of the following is the least attractive portfolio positioning strategy in a static curve environment?

选项:

A.

Purchasing a 10-year zero-coupon bond with a yield of 2% and a price of 82.035

B.

Entering a pay-fixed, 30-year USD interest rate swap

C.

Purchasing a 20-year Treasury and financing it in the repo market

解释:

B is correct.

The 30-year pay-fixed swap is a “short” duration position and also results in negative carry (that is, the fixed rate paid would exceed MRR received) in an upward-sloping yield curve environment; therefore, it is the least attractive static curve strategy.

In the case of a.), the manager enters a “buy-and-hold” strategy by purchasing the 10-year zero-coupon bond and extends duration, which is equal to 9.80 = 10/1.02 since the Macaulay duration of a zero equals its maturity, and ModDur = MacDur/(1+r) versus 7.25 for the index.

Under c.), the manager introduces leverage by purchasing a long-term bond and financing it at a lower short-term repo rate.

In the case of a.), the manager enters a “buy-and-hold” strategy by purchasing the 10-year zero-coupon bond and extends duration, which is equal to 9.80 = 10/1.02 since the Macaulay duration of a zero equals its maturity, and ModDur = MacDur/(1+r) versus 7.25 for the index.


9.8 是怎么计算出来的?

为什么要计算9.8?

这道题为啥需要计算9.8?




1 个答案

pzqa015 · 2023年05月10日

嗨,努力学习的PZer你好:


这道题不用算9.8

题目说了The yield curve is upward-sloping and expected to remain unchanged,对应的策略应该是加久期或加杠杆

B选项pay fixed swap降低久期,所以是Least attractive.


9.8的计算也是错的,10年期零息债的mac duration就是10,不可能是9.8,忽略解析吧。

----------------------------------------------
虽然现在很辛苦,但努力过的感觉真的很好,加油!

fresh · 2023年10月27日

解析算的是Modified Duration .Maclay Duration10 没有错啊

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