Question
1. Tom wants to purchase a 6-month European call option on ABC shares with a strike price of $30. The current price for an ABC
1.
Tom wants to purchase a 6-month European call option on ABC shares with a strike price of $30. The current price for an ABC share is $29. Barry estimates the volatility of these shares to be 12% per annum. The risk-free continuously compounding interest rate is 2% per year.
a) Construct a 3-step binomial tree showing the possible share prices in 6 months. Also, clearly show the corresponding probabilities for an upward and a downward movement in the share
price.
[4 marks]
b) Using your binomial tree from part a) and the information given above, calculate the corresponding 3-step call option tree, and clearly state the fair price of the option according to
the given information. c) Using the binomial tree constructed in part b), estimate the time zero ( = 0) values of delta
() and theta ().
[3 marks] [3 marks]
0.2 1.2, 0.2 0.8, 0.1 1.1, 0.1 0.9, 0.05 1.05, 0.05 0.95, 0.01 1.02, 0.01 0.98, 0.005 1, 0.005 1.
1.
Tom wants to purchase a 6-month European call option on ABC shares with a strike price of $30. The current price for an ABC share is $29. Barry estimates the volatility of these shares to be 12% per annum. The risk-free continuously compounding interest rate is 2% per year.
a) Construct a 3-step binomial tree showing the possible share prices in 6 months. Also, clearly show the corresponding probabilities for an upward and a downward movement in the share
price.
[4 marks]
b) Using your binomial tree from part a) and the information given above, calculate the corresponding 3-step call option tree, and clearly state the fair price of the option according to
the given information. c) Using the binomial tree constructed in part b), estimate the time zero ( = 0) values of delta
() and theta ().
[3 marks] [3 marks]
0.2 1.2, 0.2 0.8, 0.1 1.1, 0.1 0.9, 0.05 1.05, 0.05 0.95, 0.01 1.02, 0.01 0.98, 0.005 1, 0.005 1.
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