Consider an at-the-money European put option with a strike price of $30 and 6 months until expiration.The underlying stock does not pay dividends and has a historical volatility of 35%. The risk-free rate is 3%.
a. What is the options delta?
b. What is the value of the option?
c. If the stock price immediately changed to $24, what would be the estimated price of the option, using the delta approximation?
d. Now consider the call option with the same information; compute its delta.
e. If you purchase 10 of the put option and 5 of the call option, what is the delta of the resulting portfolio?