We will derive a two-state put option value in this problem. Data: S₀ = 120; X = 130; 1 + r = 1.1. The two possibilities for S_T are 140 and 90.

a.	The range of S is 50 while that of P is 10 across the two states. What is the hedge ratio of the call? (Round your answer to 2 decimal places.)

Hedge ratio

.2

b.

Calculate the value of a call option on the stock with an exercise price of 130. (Do not use continuous compounding to calculate the present value of X in this example, because the interest rate is quoted as an effective per-period rate.) (Do not round intermediate calculations. Round your answer to 2 decimal places. )

Call value

$