Consider the following option portfolio: You write a January 2012 expiration call option on IBM with exercise price $170, and the price of the call option is $8.93. You also write a January expiration IBM put option with exercise price $165, the price of the put option is $10.85.

Instructions: for parts a, b, and c, enter your answer as a decimal rounded to the nearest cent.

a. What will be the profit/loss on this position if IBM is selling at $157 on the option expiration date? $

b.What will be the profit/loss on this position if IBM is selling at $175 on the option expiration date?

c. At what two stock prices will you just break even on your investment (i.e., zero net profit)?

For the put, this requires that:

For the call this requires that:

d. What kind of "bet" is this investor making; that is, what must this investor believe about IBM's stock price in order to justify the position?