it has nothing to do with how many sellers or buyers

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送交者: meiyou 于 2008-10-07, 18:51:37:

回答: there's a bid-ask spread. when more people sell than buy, 由 Enlighten 于 2008-10-07, 16:28:53:

bid ask is decided by the 'book' which consists limit order prices and quotes, market orders ...

bid price can be higher than ask price - crossed, it is short lived and that means a transaction can happen.



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