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一凡007 · 2024年10月20日

离散利率运算方法

NO.PZ2023091802000160

问题如下:

Consider a $1 million notional swap that pays a floating rate based on 6-month LIBOR and receives a 6% fixed rate semiannually. The swap has a remaining life of 15 months with pay dates at 3, 9 and 15 months. Spot LIBOR rates are as following: 3 months at 5.4%; 9 months at 5.6%; and 15 months at 5.8%. The LIBOR at the last payment date was 5.0%. Calculate the value of the swap to the fixed-rate receiver using the bond methodology.

选项:

A.

$6,077

B.

-$6,077

C.

-$5,077

D.

$5,077

解释:



应该用哪一种呢?怎么选择?老师

1 个答案

pzqa27 · 2024年10月21日

嗨,努力学习的PZer你好:


一般来说,每一个题目都是经过精妙的设计形成的,如果随意改动,必然会出现一些bug,导致没法算。这就是个例子

正常来说,这里用连续复利计算没有任何问题,但是如果强行转离散复利,就出现了你写的这种情况。题目用的是连续复利,也就是每时每刻都在复利,而你写的第一种算法是认为1年复利4次,第二种算法是默认每年复利一次。所以可以认为都是对的。如果题目真的考察离散复利的话,可以根据付息频率来判断使用哪种算法。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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