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This is the daily number of shares of a security that change hands between a buyer and a seller. Also known as volume traded. Also see Up volume and Down volume.


The amount of trading sustained in a security or in the entire market during a given period. Especially heavy volume may indicate that important news has just been announced or is expected. See also average daily volume.


Volume is the number of shares traded in a company's stock or in an entire market over a specified period, typically a day.

Unusual market activity, either higher or lower than average, is typically the result of some external event. But unusual activity in an individual stock reflects new information about that stock or the stock's sector.

References in periodicals archive ?
Principal anti-tumor mechanism used by these viruses is a direct cytopathic effect, produced as the virus propagates and spreads from initially infected tumor cells to surrounding tumor cells, achieving a progressively larger volume of distribution and enhanced tumor cell killing.
Steady state volume of distribution of the drug increases with a decrease in plasma albumin levels.