来自：FRM > 一级 > 电脑版 > Unit 11.期权 2021-09-15 07:20
A long bull spread involves buying a call at lower strike price and selling a call at higher strike price. Hence, a short bull spread is the opposite, i.e. selling a call at lower strike price and buying a call at higher strike price这个是不是错了bull short 也应该
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