option spread The purchase of one option and the simultaneous sale of a related option, such as two options of the same class but different strike prices and/or expiration dates. see also far option, near option, long leg, bear spread, box spread, bull spread, butterfly spread, crack spread, crush spread, diagonal spread, even spread, interdelivery spread, intermarket spread, perpendicular spread, calendar spread, ration calendar spread, ratio spread, vertical spread, selling the spread, yield curve.
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