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Wednesday, 06/28/2006 6:51:56 PM

Wednesday, June 28, 2006 6:51:56 PM

Post# of 35788
FYI on bid/ask:
Bid and ask sizes,serve as measures of the strength and depth of the bid/ask prices. They tell us about the supply/demand pressures on a stock at a given moment. We can summarize important Bid/Ask size concerns as follows:

A large bid size indicates a strong demand for the stock.
A large ask size shows that there’s a large supply of the stock.
If the bid size is significantly larger than the ask size, then the demand for the stock is larger than the supply of the stock; therefore, the stock price is likely to go up.
If the ask size is significantly larger than the bid size, then the supply of the stock is larger than the demand for the stock; therefore, the stock price is likely to drop.
Because bid/ask prices and sizes change quickly in real-time, supply and demand also change quickly in real-time. Experienced traders always pay very close attention to the bid/ask sizes of a stock to monitor the supply-demand dynamic. Short-term traders usually buy a stock only when the demand is higher and sell a stock if demand suddenly becomes lower relative to supply.
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