When I look at my scottrade account I see options for select months, but can I buy options each month or do certain stocks have certain option cycles. FOr instance... If I have MSFT shares, I can sell options for Nov, Dec, and Jan. I dont see Feb, Mar, but April yes, May no. Will I be able to sell options on the months that dont appear or do I have to find a new stock that has those expiration dates? Thanks