v o l u m e

i try to observe stock trading volume in an attempt to judge the relative strength, weakness, conviction, etc of particular price movements, especially when these movements occur close to support, resistance and trend lines. that's why i will be checking out this article:

Volume, the Mystery
By Nigel Hawkes, President, Hawkeye Traders

Many thousands of words have been written on volume over the years, but its secrets elude many traders. Until a trader has a full understanding and appreciation of volume, though, it is my considered opinion that he or she will be making judgments that do not take into account the basic “supply and demand” of the market...

keep reading here.