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# Call option & Put option values

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8-1
A call option on Bedrock Boulders stock has a market price of \$7. The stock sells for \$30 a share and the option has an exercise price of \$25 a share.
a. What is the exercise value of the call option?
b. What is the premium on the option?

8-3

Assume that you have been given the following information on Purcell Industries.
Current Stock price=\$15 Strike price of option =\$15
Time to maturity of option =6 mos Risk-free rate =6%
Variance of stock return=0.12
d1 = 0.24495 N(d1) =0.59675
d2 = 0.00000 N(d2)= 0.50000
According to the Black-Scholes option pricing model, what is the options' value?

8-4

The current price of a stock is \$33, and the annual risk-free rate is 6%. A call option with an exercise price of \$32 and one-year until expiration has a current value of \$6.56.
What is the value of a put option written on the stock with the same exercise price and expiration date as the call option?

8-6
The current price of a stock is \$20 . In 1 year, the price will be either \$26 or \$16. The annual risk -free rate is 5%. Find the price of a call option on the stock that has a strike price of \$21 and that expires in 1 year. (Hint: Use daily compounding.)