美股开户者An option strategy in which maximum profit is attained if the underlying security rises in price. Either calls or puts can be used. The lower strike price is purchased and the higher strike price is sold. The options have the same expiration date.
一种在相关证券价格上升时可获得最大利润的期权策略。买入或出售期权都可以采用这个策略。方法为买入行使价格较低的期权，卖出行使价格较高的期权，两者的到期日一样。
未经允许不得转载：美股开户者 » Bull Spread看涨的多空套做
