Vertical Credit Spread Defined: An options trading strategy which includes the sale of a closer-to-the-money option (higher-priced) with the purchase of a further out-of-the-money option (lower-priced) with the same expiration date on a one-to-one basis. http://www.daytradeteam.com/dtt/vertical-credit-spread-options-trading.asp
My posting is for my own entertainment, do your own DD before pushing your buy/call button