INVESTMENTS-CONNECT PLUS ACCESS
11th Edition
ISBN: 2810022611546
Author: Bodie
Publisher: MCG
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Chapter 21, Problem 8PS
Summary Introduction
To determine:
and show that Black-Scholes call option hedge ratios increase as the stock price increases.
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Show that Black-Scholes call option hedge ratios also increase as the stock price increases. Consider a 1-year option with exercise price $50, on a stock with annual standard deviation 20%. The T-bill rate is 3% per year. Find N(d1) for stock prices (a) $45, (b) $50, and (c) $55.
Assume you want to price a call on a stock that has the price of $35 today. The option matures in one year and has the strike
price of $34. Assume the stock price is equally likely to go up by 10% or down by 10% in one year, and you plan to use a one
step binomial tree to price the call option.
What is the hedge ratio (in decimal format, use 5 decimal places)?
Assume you want to price a call on a stock that has the price of $35 today. The option matures in one year and has the strike price of $34. Assume the stock price is equally likely to go up by 10% or down by 10% in one year, and you plan to use a one-step binomial tree to price the call option.
What is the hedge ratio (in decimal format, use 5 decimal places)?
Chapter 21 Solutions
INVESTMENTS-CONNECT PLUS ACCESS
Ch. 21 - Prob. 1PSCh. 21 - Prob. 2PSCh. 21 - Prob. 3PSCh. 21 - Prob. 4PSCh. 21 - Prob. 5PSCh. 21 - Prob. 6PSCh. 21 - Prob. 7PSCh. 21 - Prob. 8PSCh. 21 - Prob. 9PSCh. 21 - Prob. 10PS
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- Do it correctly step by step.arrow_forwardA stock has a current price of $67. An option on this stock that expires in six months has an exercise price of $65. The stock will pay a dividend of $5 in three months. Assume an annualized volatility of 30% and a continuously compounded risk - free rate of 5% per annum. Use the Black - Sholes - Merton model to price this option. 1) Suppose the option is a European put. Calculate the value of the put. 2) Suppose this option is an American call. Use Black's approximation to calculate the value of this call.arrow_forwardConsider an American Put option with time to expiry of 5 months and a strike price of 82. The current price of the underlying stock is 80. Divide the time to expiry into five 1-month intervals. In each interval, the stock price can either rise by 6, or fall by 6, with unknown probability. The risk-free rate is 4.2% per annum, continuously compounded. Use Binomial Model. What is the value of the option. Provide all necessary calculations.arrow_forward
- Consider an American Put option with time to expiry of 5 months and a strike price of 82. The current price of the underlying stock is 80. Divide the time to expiry into five 1-month intervals. In each interval, the stock price can either rise by 6, or fall by 6, with unknown probability. The risk-free rate is 4.2% per annum, continuously compounded. Use Binomial Model. What is the value of the option. Please provide necessary calculations.arrow_forwardConsider a stock with a current price of $15 that will be worth either $10 or $25 1 year from now. Assume rf = 0% (annual compounding). You have invented a new derivative security called an "inverse", whose payoff in 1 year is 100 divided by the stock price, i.e., payoff =100/S1 . If the beta of the stock is 1.2, what is the beta of this new derivative?arrow_forwardSuppose that the current price of Roblox Corporation common stock is (RBLX) is $100. If the price of RBLX will be either $150 or $50 one year from now, what is the price of a call option with a strike price of $120 expiring one year from now? Assume that the current risk free rate is 1%. What is the risk neutral probability of the stock being $150 one year from now?arrow_forward
- Calculate the price of a put option on stock using a three-time-step binomial tree model. We know that the current stock price is $70, the strike price is $73, the volatility of the stock is 25%, the maturity of the option is 3 years, and the annual effective risk-free rate is 10%, yearly compounding. How much does this put option worth today if it is American? According to the Put-Call Parity, what should be the price of the European call option that is written on the same stock with the same expiration and the same strike price?arrow_forwardConsider an American Put option with time to expiry of 5 months and a strike price of 82. The current price of the underlying stock is 80. Divide the time to expiry into five 1-month intervals. In each interval, the stock price can either rise by 6, or fall by 6, with unknown probability. The risk-free rate is 4.2% per annum, continuously compounded. Use Binomial Model. (a) What is the evolution of the prices of the underlying asset in time? Show it on a binomial tree.arrow_forwardUsing the Black-Scholes model find the premium on a call option with an exercise price of $50 on a share currently priced at $40. Assume the riskless rate of 1% per annum and the option has two years to expiration. The risk of the stock is measured by a σ value of 0.15. Decompose the premium into intrinsic value and time value? By how much is the call option priced above minimum value? Repeat the exercise for a current share price of $60.arrow_forward
- A stock is currently priced at $47. A call option with an expiration of 1 year has an exercise price of $50. The risk-free rate is 4 percent per year, compounded continuously, and the standard deviation of the stock's return is infinitely large. What is the price of the call option? Call option pricearrow_forwardConsider the following data for a certain share. Current Price = S0 = Rs. 80 Exercise Price = E = Rs. 90 Standard deviation of continuously compounded annual return = \sigma = 0.5 Expiration period of the call option = 3 months Risk – free interest rate per annum = 6 percent a. What is the value of the call option? Use the normal distribution table. b. What is the value of a put option?arrow_forwardSuppose Carol's stock price is currently $60. If the standard deviation of the continuously compounded returns (a) on a stock is 40 percent per year. The annual risk-free rate is 6%. A. Using one-step binomial tree, what is the current value of a one-year call option with an exercise price of $75? B. Using two-step binomial tree, what is the current value of a two-year put option with an exercise price of $45? C. Using a black-sholes model, what is the current value of a two-year call option with an exercise price of $75? 108 PV(EX) ove d₂=d₂-ovi Oc=[N(d,) x P]-[N(d₂) x PV(EX)]arrow_forward
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