stock warrant

(noun) a type of security issued by a corporation (usually together with a bond or preferred stock) that gives the holder the right to purchase a certain amount of common stock at a stated price. Synonyms: warrant, stock warrant, stock-purchase warrant. Example: "As a sweetener they offered warrants along with the fixed-income securities."

(noun) a written certificate that gives the holder the right to purchase shares of a stock for a specified price within a specified period of time. Synonyms: stock warrant.