Question 1
An analyst is valuing a non-callable, non-putable corporate bond using a binomial interest rate tree. The bond has two years remaining to maturity, a 5% annual coupon, and a par value of $1,000. The current one-year spot rate is 3.0%. The interest rate volatility is assumed to be 15%. The binomial tree for one-year forward rates is calibrated as follows:
Time 0 Time 1
/ i(1,u) = 3.964%
i(0) = 3.0% --
\ i(1,d) = 2.924%
To ensure the tree is arbitrage-free, what should be the price of a one-year, zero-coupon bond with a face value of $100?
Answer and explanation
Correct answer: B
An arbitrage-free interest rate tree must correctly price benchmark bonds. For a one-year bond, its price is determined by discounting its face value at the current one-year spot rate. The price is calculated as $100 / (1 + 0.030) = $97.087, which rounds to $97.09. The other values in the tree are used for valuing longer-term or more complex bonds, but the initial node must align with the current spot rate for that maturity.