Saturday, November 15, 2008

Day high and low price for US stocks

It seems that prices recorded for the day high and low, the relevent engines or stock price updates you see in websites which provide free price quotes, actually consider the best high and low prices for all the the various US exchanges. What do i meant?

For example, websites which provide free price quote shows counter X has a day high of 6.42 at around 11pm SGT. Your initial order for 6.4 wasnt filled. And you will ponder why?

The reason is the price quotes in these websites, perhaps brokages, their engine quote all the high and low price in all the exchanges that the counter is trading.
However, the order submited to your particular exchange, lets say, NYSE, at that point of time, was only trading 6.10, for counter X, despite the websites and engines show a day high for 6.42. This high price is recorded as it is the highest price among all the US exchanges that is trading at the point of time for counter X, but for NYSE, the price didnt penetrated this price of 6.42.

Haha..hope im making sense here.

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