Problem:
The stock price of Heavy Metal (HM) changes only once a month: either it goes up by 24% or it falls by 19%. Its price now is $49. The interest rate is 12% per year, or about 1.00% per month.
Required:
Question 1: What is the value of a one-month call option with an exercise price of $49?
Question 2: What is the option delta?
Note: Please show how to work it out.