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A stock price is currently $50. It is known that at the end of three months,...

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?

Solutions

Expert Solution

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


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