In: Finance
A stock price is currently $50. It is known that at the end of three months, it will be either $55 or $45. The risk-free interest rate is 12% per annum with continuous compounding. What is the value of a three-month European call option with a strike price of $51?
Calculation of Payoff of European call option at end three months:
If stock price on maturity is $55
If stock price on maturity is $45
Calculation of Risk neutral probability of price up(u) and price down (d)
where,
S = current stock price
r = risk free rate
t = maturity in year
P(u) = Probability to up price
and
Calculation of Value of European call option