right to buy or sell

See: option
References in periodicals archive ?
Further, all options have an "exercise" price, also called the "strike" price--the level at which an investor can use his or her right to buy or sell a stock.
An option is a right to buy or sell a stock - usually in lots of 100 shares - at a set price, called the strike price.
Securities transaction agreements tied to stocks, commodities or stock indices involving the right to buy or sell those instruments for agreed-upon sums.