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发表于 2009-5-22 05:36 PM
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Thank you.
What could be difference?
all security should include equity,etf&indices
how about cpc?
6# Cobra
wyemlyy 发表于 2009-5-22 18:32 
ISE好像是最简单的buy to open volume,不象CBOE那么复杂。
As a potential improvement to the put/call data provided by the CBOE, the ISE created its index using only those options that are bought to open. This gives us a more "true" feel for the sentiment behind the options trades, as the data is not skewed by large institutional options sellers. |
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