Hedging means reducing uncertainty, which means reducing volatility, which dosen't mean maximizing return.

???!!!

Long spread locks your maximum loss and profit. It doesn't meet your objective of maximizing total portfolio return.

[此贴子已经被作者于2007-1-17 0:35:44编辑过]

我顶.

没人回答吗，我知道这个问题不是三言两语能讨论明白的，只希望哪位高人上传几篇相关的文章lighting一下.

我寒.......

照你这种搞法，直接搞个long put+long call的straddle就行了。还弄什么cover, hedge, ratio的，完全不是那么回事儿

Hedging没有Maxiamize return的作用吧？

楼主的主题到底是什么？

1. straddle 在市场下跌的时候保护效果不好，我用的是put spread (short put at low strike and long put at high strike so protection zone is between two strike )

2. 我的问题是到底该买多少put spread?