When the Black-Scholes-Merton and binomial tree models are used to value an option
on a non-dividend-paying stock, which of the following is true?
A. The binomial tree price converges to a price slightly above the
Black-Scholes-Merton price as the number of time steps is increased
B. The binomial tree price converges to a price slightly below the
Black-Scholes-Merton price as the number of time steps is increased
C. Either A or B can be true
D. The binomial tree price converges to the Black-Scholes-Merton price as the number
of time steps is increased
A portfolio manager in charge of a portfolio worth $10 million is concerned that the
market might decline rapidly during the next six months and would like to use put
options on an index to provide protection against the portfolio falling below $9.5
million. The index is currently standing at 500 and each contract is on 100 times the
index. What should the strike price of options on the index be the portfolio has a beta of
0.5? Assume that the risk-free rate is 10% per annum and there are no dividends.