Definitions for "Spread trade"
The purchase of one futures contract and the simultaneous sale of another in order to take advantage of relative price changes. Examples include buying one futures contract and selling another futures contract of the same underlying asset but different delivery month; buying a given delivery month of one futures contract and selling the same delivery month of a different, but related, futures contract (e.g. Short Sterling v. Long Gilt).
Using lower yield securities as collateral in a repo and then reinvesting the cash received to buy higher yield securities which achieves a higher yield while minimizing the extra risk.
a specialized type of trade involving the simultaneous purchase and sale of two different but related futures contracts
Keywords:  hedge, pure, simple
a hedge, pure and simple