Volume
Volume measures how much money people are putting on the table to back up their bullish or bearish outlooks. The analyst can be bullish or bearish, but it is the trader and investor who risk their money. The more money they risk by buying and selling, the greater their convictions must be. We can equate convictions with perceptions and if they rise, so will the market.
According to perceived wisdom, volume should expand during healthy rallies. Expand? That means get bigger. If the market is rising and more and more people are being pulled into the market to participate, volume will rise.
If the rally is not healthy, such as when the public does not follow the early buyers into the market or when a trend is nearing its end, volume will ...
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