We like to buy them at a discount to what we believe their fair value is, and then sell call options with strike prices equal to what we feel their fair value is. (borntosell.com)
The purchase of call options allows an investor to profit from a short term rise in the price of the underlying security. (pocketsense.com)
For example: someone who goes long cocoa at 850 can write a 900 strike price call option with about one month of time until option expiration. (cannontrading.com)