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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 ?
Normality of the cerebral oxygenation and blood volume responses in the two subject groups was examined with the Kolmogorov-Smirnov test.
Skin blood volume increased when the position changed from supine to left lateral, because the probe was situated at the lowest part of the body.
Evidence that blood volume analysis continues to be recognized as a diagnostic tool to guide therapy in various medical conditions, Daxor reported today that sales of its single use diagnostic kit have increased 40% for the first 9 months as compared to 2005.
A measured blood volume has been shown in recent published medical reports to be clinically superior in the diagnosis of a patienteIUs volume status than existing surrogate markers, lab test and physical assessments within medical conditions such as heart failure and critical care.
Mihae Yu, Professor of Surgery and Program Director of Surgical Critical Care, said that, "I have found blood volume measurements to be extremely useful in guiding both fluid and red cell replacement.
and other disease states where blood volume derangements are often misdiagnosed.
By utilizing Daxor's Blood Volume Analyzer BVA-100, which provides a precise measured plasma and red blood cell volume, clinicians were able to accurately diagnose and treat patients with a true anemia with epoetin alfa (EPO).
Manzone was recently asked by the Journal of Nuclear Medicine Technology to contribute a Continuing Medical Education (CME) article concerning blood volume analysis in clinical practice.
Blood volume derangements are often common in patients with heart failure, hypertension, syncope, anemia, kidney disease, and who are being treated in the intensive critical care unit.
The BVA-100 Blood Volume Analyzer works in conjunction with the Max-100 radiopharmaceutical kit, specifically designed to provide a volumetric flow-through chamber, which is a critical component of providing a precise blood volume analysis.
a 55% death rate over a two-year period, I believe that it is important to consider the potential contribution of direct blood volume measurement in enhancing the diagnosis, treatment, and prognostic assessment of heart failure patients.
Moussa will be assisting the Company in a consulting capacity for domestic and international development of the BVA-100 Blood Volume Analyzer and the Blood Bank.