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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 ?
Continuously assessed right ventricular end-diastolic volume as a marker of cardiac preload and fluid responsiveness in mechanically ventilated cardiac surgical patients.
We analyzed the correlations between the obtained surface areas and the end-diastolic volumes normalized by body areas.
It is probable that a moderate increase in the end-diastolic volume of the left ventricle resulted from an increase in MV and consequently an increase in the amount of the preload and left ventricle filling pressure.
By increasing the size of the LVA, from 10% to 50% of the left ventricle, the end-diastolic volume of the aneurysm (EDVS2) is increased.
Global end-diastolic volume as an indicator of cardiac preload in patients with septic shock.
(18,20,21) Simplistically, the observed phenomenon is the result of the continuously varying response of the left ventricle to subtle changes in end-diastolic volume, created through cardiopulmonary interaction.
The cardiac magnetic resonance imaging scan showed reduced RV ejection fraction (EF) of 28% and preserved LVEF of 60% with a LV end-diastolic volume index of 103 ml/[m.sup.2] (Figures 2(e) and 2(f)).
Dilated cardiomyopathy was defined as the presence of diffuse left ventricular hypokinesia (ejection fraction, < 45 percent) and dilatation (left ventricular end-diastolic volume index, > 80 mL per square meter).
This process would be analogous to pulmonary capillary damage in emphysema, which may increase RV mass and reduce LV end-diastolic volume and LV mass (Vonk Noordegraaf et al.
In the case group, the right ventricular (RV) end-diastolic volume decreased from 81.57 [+ or -] 31.47 ml preprocedure to 62.92 [+ or -] 19.07 ml postprocedure during a median interval of 6 months after closure ( P < 0.001), and the RA volume decreased from 106.93 [+ or -] 54.17 ml preprocedure to 79.07 [+ or -] 40.39 ml postprocedure ( P < 0.001).
The heart functions monitored by the researchers included right ventricular ejection fraction (RVEF), end-systolic volume (volume of blood at the maximum contraction point, ESV), and end-diastolic volume (volume of blood when at the maximum filling point, EDV), stroke volume and cardiac output.