Interdelivery Spread The purchase of one delivery month of a given futures contract and simultaneous sale of another delivery month of the same commodity on the same exchange. (gffbrokers.com)
There is a premium collection component, but the income is generated via the simultaneous sale of both calls and puts in a market - neutral fashion. (swanglobalinvestments.com)
A bull call spread is an option strategy that involves the purchase of a call option, and the simultaneous sale of another option with the same expiration date but a higher strike price. (investopedia.com)