同样数量的call 和put. 买put 和卖call，趋势都是看跌，但是risk profile 很不一样.

来源: Kittycat2014 于 2015-05-09 08:27:45 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.