Typically you will enter positions with different expiration month and varying dates. In today's market there are weekly, monthly, and quarterly options. However, most of the options that you should be trading for regular positions will be the monthly contracts. You should only use weekly options for earnings trades and hedging (which we discuss in other modules). It's important to remember that most option contracts generally expire the third Friday of the expiration month unless that day is a holiday in which case the last trading day will be the prior day, or Thursday.