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jojo · 2025年04月28日

浮动利率的那边

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:


我一直以为浮动利率就是在在每个付息日回归面值,所以向下箭头直接用了NP=1million,看了下面的解答貌似要分情况?

因为此时求的是t=0时刻(非期初,而是两个coupon中间一个点),而非付息日,所以要考虑t=3时刻的浮动coupon,是吗?如果问t=3时间点的value,就是直接用固定利率向上箭头减去本金(此时是回归面值的),是吧? https://class.pzacademy.com/qa/15185


谢谢老师(*^▽^*)




1 个答案

李坏_品职助教 · 2025年04月28日

嗨,努力学习的PZer你好:


对的。如果是在期初,或者任何一个coupon payment date,那么浮动利率这部分未来现金流折现之和 = 面值。


如果不是在coupon payment date,那么就要用面值 + 最近的一次coupon,一起折现到现在这个0时刻。

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努力的时光都是限量版,加油!

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