In: Finance
Consider a binomial world in which the current stock price of 80 can either go up by 10 percent or down by 8 percent. The risk-free rate is 4 percent. Assume a one-period world. Answer questions 12 through 15 about a call with an exercise price of 80.What is the hedge ratio if the stock goes down one period? 2 period
Strike price = $ 80.00
Current Market price = $ 80.00
Risk-free rate = 4%
Value of call option formula = stock price - strike
price
At one peripd, value of option
Stock price = 88
(80+10%)
Value of call option = 88-80 = 8
Stock price 73.6
(80-8%)
Value of call option = 73.6 - 80 = 0
Hedge ratio formula = (V.C. at Upper value -V.C. at
Down value) / (Upper Value - Down value)
(8-0) / (88-73.60)
0.5555555556
So, hedge ratio is 0.56