Strip :
Long strip consists of a long straddle and one more put with the same strike price.
Strategy: One call and two puts
Expectation: a big price move with a decrease more likely than an increase
Strap :
Long strap consists of a long straddle and one more call with the same strike price.
Two calls and one put.
Expectation: a big price move with an increase more likely than a decrease

lecture notes
[此贴子已经被作者于2005-9-29 17:52:41编辑过]