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发表于 2009-12-11 11:03 AM
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I see what you are saying. But what I don't understand is:
假定A sell 55 put and buy 50 put at the same time,
那么大的量,说明也有人B大量买55 put 卖 50 put, 那么B不是在bet market will drop to ...
wuyouren 发表于 2009-12-11 09:28 
You do not understand how option works.
If a guy bot $1M $550PUT, he does not really mean SPX will drop to 550.
For example, if in jan. 2010, SPX drops 20% in a very short time to 900,
Then his option could be more than doubled, because the VIX would shot up crazy, option would get much expensive.
Option value has a lot weight on VIX & Timing.
Plus, $1M is really nothing, it even could not work as a hedge, Period. |
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