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迷雾森林 · 2024年06月21日

问题

NO.PZ2023120801000041

问题如下:

The bonds of Whakatane and Co. are priced for settlement on 15 July 2014 and have the following features.


On the basis of this information, the difference between the full and flat prices is closest to

选项:

A.

0.917

B.

2.667

C.

1.326

解释:

Correct Answer: C

The difference between the full and flat prices is the accrued interest, which is computed as follows. Based on the Actual/Actual day convention, the number of days between the coupon periods is 184 days. Also, using the Actual/Actual day count convention, the number of days between 15 May 2014 and 15 July 2014 is 16 days remaining in May + 30 days in June + 15 days in July = 61 days. Accrued interest (per $100 par value) = (61/184)(8.00/2) = 1.326.

感觉相邻的两题好乱 full price按复利算,而差异按平息算,是不是太乱了?

1 个答案

吴昊_品职助教 · 2024年06月21日

嗨,从没放弃的小努力你好:


Accrued interest是单利形式,主要是因为settlement date和相邻付息日之间时间间隔很短,所以我们采用单利即可。而full price是相对于整个债券而言的,整个债券期限大于一年,所以采用复利的形式。

这个计算惯例是协会给出的,我们需要遵守。

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就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

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