Keep the change
My question for you is: why would you want to buy them back? They are giving you $220 per hundred. If the stock pulls back, just keep the change 
Delta: the amount of change in price in the option when the stock price changes. Example: HOM's $15 call for JAN 07 has a delta of .489. Therefore, if HOM moves $1, the option prices moves in the same direction $.49. Your question: HOM moves from $11.65 to $10.50, the option price moves from $2.20 down to $1.65.
Originally posted by grebnet

Delta: the amount of change in price in the option when the stock price changes. Example: HOM's $15 call for JAN 07 has a delta of .489. Therefore, if HOM moves $1, the option prices moves in the same direction $.49. Your question: HOM moves from $11.65 to $10.50, the option price moves from $2.20 down to $1.65.
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