1. If you buy an option, your biggest risk is that the underlying stock does not move in your direction… or moves against your direction. In which case, the value of the option you bought goes down.

2. If you buy an option and the stock stays in a narrow price range through the option’s expiration, the option will expire worthless.

 That’s why the underlying stock you bought an option on MUST move in your direction with 2 to 10 days. Otherwise the option will go down in price. Maybe to zero.