So short $38 put and $40 call might be the best?

or buy both $39 call and put?

Or do both

short $38 put and $40 call
and
buy both $39 call and put

?

所有跟帖： 

• 这活太细了。非要赌，我想QQQQ这一个月内存在涨或跌5%的机会。 -putwriter- ♂ (0 bytes) () 05/30/2006 postreply 16:34:13

• 按那几个时间段的历史来看，5%即70点左右不算夸张 [e-mail]- ♂ (318 bytes) () 05/30/2006 postreply 16:43:53