One of the tools an investor uses today is watching the trading volume of a stock. Although you cannot use trading volume of one stock by comparing it to that of another, you can learn a great deal from it.
If you notice that a stock usually trades 150,000 shares per day and starts to trade 400,000 shares there is probably good reason to take notice to the change. It could be the reverse, the stock trades a significantly lower volume. There could be one or many reasons that this may happen and it could be positive or negative.
Reasons for this may be the company has new developments, increased earnings, increased dividend payouts, a merger or insider trading to name a few. Decreased volume may be a result of dividend cut, poor earnings report, financial problems.
Using volume as an indicator has its place and can be used when evaluating a stock. Remember an increase or decrease in trading volume usually represents something that you should take notice to.
