以下是引用youzizhang在2009-3-18 17:17:00的发言：
LOS d: Compute the value of a callable bond from an interest rate tree.
Q1. Using the following tree of semiannual interest rates what is the value of a 5% callable bond that has one year remaining to maturity, a call price of 99 and pays coupons semiannually?
7.76%
6.20%
5.45%
A) 98.29.
B) 99.01.
C) 97.17.
Q2. Using the following tree of semiannual interest rates what is the value of a callable bond that has one year remaining to maturity, a call price of 99 and a 5% coupon rate that pays semiannually?
7.59%
6.35%
5.33%
A) 98.26.
B) 99.21.
C) 98.65.
Q3. A callable bond with an 8.2% annual coupon will mature in two years at par value. The current one-year spot rate is 7.9%. For the second year, the yield-volatility model forecasts that the one-year rate will be either 6.8% or 7.6%. The call price is 101. Using a binomial interest rate tree, what is the current price?
A) 101.000.
B) 100.558.
C) 100.279.
Q4. Which of the following is the appropriate "nodal decision" within the backward induction methodology of the interest tree framework for a callable bond?
A) Min(call price, discounted value).
B) Min(par value, discounted value).
C) Max(call price, discounted value).
Q5. Eric Rome works in the back office at Finance Solutions, a limited liability firm that specializes in designing basic and sophisticated financial securities. Most of their clients are commercial and investment banks, and the detection, and control of interest rate risk is Financial Solution’s competitive advantage.
One of their clients is looking to design a fairly straightforward security: a callable bond. The bond pays interest annually over a two-year life, has a 7% coupon payment, and has a par value of $100. The bond is callable in one year at par ($100).
Rome uses a binomial tree approach to value the callable bond. He’s already determined, using a similar approach, that the value of the option-free counterpart is $102.196. This price came from discounting cash flows at on-the-run rates for the issuer. Those discount rates are given below:
Using the binomial tree model, what is the value of the callable bond?
A) $102.196.
B) $101.735.
C) $95.521.
Q6. What is the value of the call option embedded in this bond?
A) $6.675.
B) $12.924.
C) $0.461.
Q7. Which of the following steps that Rome would go through in calculating the effective duration of this callable bond is incorrect?
A) Add the option-adjusted spread (OAS) to each of the spot rates in the interest rate tree to get a "modified" tree.
B) Impose a small parallel shift to the interest rates used in the problem by an amount equal to +?.
C) Given the assumptions about benchmark interest rates, interest rate volatility, and a call and/or put rule, calculate the OAS for the issue, using the binomial model.
发表于 2009-5-24 21:53
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