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21 November, 06:19

The current price of a non-dividend-paying stock is $40. Over the next year it is expected to rise to $42 or fall to $37. An investor buys put options with a strike price of $41. What is the value of each option using a one-period binomial model? The risk-free interest rate is 2% per annum. Assume non continuous compounding. Show work, step by step. A. $3.93B. $2.93C. $1.93D. $0.93

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  1. 21 November, 06:45
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    D. $0.93

    Explanation:

    Upmove (U) = High price/current price

    = 42/40

    = 1.05

    Down move (D) = Low price/current price

    = 37/40

    = 0.925

    Risk neutral probability for up move

    q = (e^ (risk free rate*time) - D) / (U-D)

    = (e^ (0.02*1) - 0.925) / (1.05-0.925)

    = 0.76161

    Put option payoff at high price (payoff H)

    = Max (Strike price-High price, 0)

    = Max (41-42,0)

    = Max (-1,0)

    = 0

    Put option payoff at low price (Payoff L)

    = Max (Strike price-low price, 0)

    = Max (41-37,0)

    = Max (4,0)

    = 4

    Price of Put option = e^ (-r*t) * (q*Payoff H + (1-q) * Payoff L)

    = e^ (-0.02*1) * (0.761611*0 + (1-0.761611) * 4)

    = 0.93

    Therefore, The value of each option using a one-period binomial model is 0.93
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