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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 ?
Note that the clearance, the volume of distribution, the elimination constant, and the half-life were consistent when calculated after the first and 13th doses, despite a large decrease in dose that was initiated after measurement of the first-dose area under the time-vs-concentration curve (AUC).
Low concentrations are characteristic of chronic leiver disease, being due to both decreaswed synthesis and an increase in the volume of distribution as a result of fluid retention and the formation of ascites.
Volume of distribution ([V.sub.d]) was calculated using the following formula:
Various methods can be found in the research literature to estimate the Widmark factor or the volume of distribution from variables such as height, weight and age [5].
The apparent volume of distribution was found to be 142.87 [+ or -] 22.78 l.
The non-linear regression program NON-MEM was used to generate population estimates of methylprednisolone volume of distribution and clearance (removal of drug).
Steady-state volume of distribution and total body clearance after intravenous administration were estimated to be 1.12 L/kg and 0.41 L/h per kilogram, respectively.
To understand the basic principles of pharmacokinetics such as volume of distribution ([V.sub.d]), clearance (CL), and plasma half-life ([t.sub.1/2]).
Additionally, amitriptyline produces pharmacologically active metabolites and is highly lipophilic with a large volume of distribution. This makes management of severe overdose particularly challenging.
PP effectively clears drugs that are highly protein bound and have a small volume of distribution. As a result, serum levels of psychotropics are lowered.
Apart from half life there is variation in other pharmacokinetic parameters like volume of distribution (Vd), it is 217 litres in a Thai study4 and 159.2 litres in Malaysian volunteers5.
Entries are listed alphabetically and consist of the compound name and chemical structure along with information regarding half-life, volume of distribution, fraction bound to protein, and dissociation constants.