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Related to stock warrant: Call Warrants
A certificate, usually issued with a preferred stock, giving the holder the option of buying an underlying asset at a certain strike price. The strike price is usually higher than the market value of the underlying asset at the time of issue. Some warrants expire a few years after issuance, but perpetual warrants can theoretically last forever. Unlike options, stock warrants are issued by companies during a round of financing, rather than by an individual investor or brokerage. Companies issue stock warrants to attract investors who might not otherwise be interested.