Question
Problem Set 3 1)Binomial tree A stock price is currently $30. During each two-month period for the next four months it is expected to increase
Problem Set 3
1)Binomial tree
A stock price is currently $30. During each two-month period for the next four
months it is expected to increase by 8% or decrease by 10%. No dividend payment is
expected during these two periods. The risk-free interest rate is 5% per annum. Use a
two-step tree to calculate the value of a European-style derivative that pays off
[max(30-ST,0)]^2 where ST is the stock price in four months? (hint: please note that
this is not a typical put option, since the final payoff is the square of the normal put
option payoff.)
2)Binomial tree
Consider a six-month European put option on one stock. Suppose that the current
stock price is 15, the strike price is 18.5, the continuously compounded risk-free rate
is 2% per annum, and the volatility of the stock is 10% per annum.
a) Value this option using a two-period binomial tree.
b) Will the value of the option be different if it is an American option?
3) Black-Scholes-Merton and binomial tree
Consider a six-month European call option on a non-dividend-paying stock. The
stock price is $30, the strike price is $29, and the continuously compounded risk-free
interest rate is 6% per annum. The volatility of the stock is 20% per annum.
a) Value this option using the Black-Scholes formula. Illustrate each step in your
calculation.
b) Please use a one-step binomial tree to value this option.
c) Please use a two-step binomial tree to value this option.
d) Compare the results from b) to c) with what you get using the Black-ScholesMerton
formula.
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