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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 ?
1, 2012 /PRNewswire/ -- Air Products (NYSE: APD) has developed its first public mobile app, which converts weight and volume measures for common industrial gases and liquefied natural gas (LNG).
At present, Leapfrog uses measures of the volume of procedures hospitals perform as a proxy for direct measurement of hospital performance, since volume measures have been statistically linked to better outcomes.
Updating the 2008 first edition, this massive two-volume reference (each volume measures 11x11.
Note: Gross and net contract volume measures expected CER production from projects through to the end of 2012 and does not adjust for operating or regulatory risk.
Fitch believes SJC can achieve the fiscal 2006 budget; however, volume measures are still behind projected levels through the five months ended November 2005.
In 2004, virtually all volume measures declined from the prior year except for cardiac volume.
And since volume measures the stocks activity, rising volume along with rising prices suggests more buyers than sellers.