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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.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.


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.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.


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.

Dictionary of Financial Terms. Copyright © 2008 Lightbulb Press, Inc. All Rights Reserved.
References in periodicals archive ?
A Clinical Evaluation of Routine Blood Sampling Practices in patients with Diabetes: Impact on Fingerstick Blood Volume and Pain.
Nine months later, the same individuals were asked to participate in a second OSCE with the following blood volumes. Of note is that these volumes were not identical to the volumes used in OSCE 1:
According to the residual blood volume in CPB circuit, the ultrafiltration volume was set as 300-450 mL.
BVM is not sensitive to dehydration because the rate that blood volume decreases when going from slightly overloaded to normal is similar to the way it decreases when going from slightly dehydrated to excessively dehydrated.
Arterial blood gases were measured during stable anesthetic conditions before phlebotomy (TO), immediately after removing 50% of the animal's total blood volume (T50%), and 30 minutes after resuscitation.
4) correspond to data from voluntary muscle, where variations in blood volume or increased oxygen consumption resulting in oxygen debt are generated experimentally.[sup.1]-[sup.3,18,19]
However, research has shown that conditions characterized by the expansion of blood volume from other causes, such as the secretion of antidiuretic hormone or the excessive elevation of blood sugar, do not cause a rise in blood pressure because the extra fluid is accommodated by the distention of capillaries and veins.
We performed estimates of the blood volume lost (EBVL) to allow comparison between our audit and previous studies that have not documented donor exposure.
The ejection fraction--the pumped blood volume to total left heart ventricle volume--was measured by high resolution ultrasound.
Stuart Griffin feared the worst when his wife Fiona, 27, lost half her blood volume within minutes of giving birth to Ben.
The physics of depressed blood volume and elevated alcohol volume were explained to her in small, simple words.
Dysfunction indicated by abnormal cerebral blood volume in the CA1 subfield of the hippocampal formation is associated with schizophrenia and related psychotic disorders to the extent that it predicts disease progression in prodromal patients and correlates with clinical symptoms in both prodromal and schizophrenia patients, a small study has found.