Question: A) You purchase an IBM call contract at $120 for a premium of $5. You hold the option until expiration, when share price is $123. What is the payout and the profit? Please plot a graph.
B) You write an IBM call contract at $120 for a premium of $4. You hold the option until expiration, when share price is $121. What is the payout and the profit? Please plot a graph.