Calculating spot rate of interest

  • You are given the following information regarding the domestic government fixed-interest bond market:

    • The current price of a one-year bond paying coupons at a rate of $4.5$% per annum and redeemed at par is £100.41 per £100 nominal
    • The current price of a two-year bond paying coupons at a rate of $6.5$% per annum and redeemed at par is £100.48 per £100 nominal

    Calculate the two-year spot rate of interest, $y_2$

    I'm not sure how to start this question. Do we have to work out the first and second year forward rates?

    Is this a homework assignment? You posted a similar plea on Math.SE.

    It's a practice question in one of the tutorial sheets, not a homework assignment. They have only given the answer of the question but I do not know how to solve it.

  • user5155

    user5155 Correct answer

    8 years ago

    Solving for annual interest rates:

    The one year annual spot rate r1: $$ 1.045/(1+r1)=1.0041 => r1 \approx 4.0733\% $$ The one-two year forward rate r1,2: $$ .065/(1+r1)+1.065/(1+r1)(1+r1,2)=1.0048 => r1,2 \approx 8.5927\% $$ The two year spot rate r2= $$ (1+r2)^{2}=(1+r1)(1+r1,2) => r2 \approx 6.3090\% $$

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Content dated before 7/24/2021 11:53 AM

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