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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 ?
However, patients can receive inappropriate levels (low) of tidal volumes during pneumoperitoneum because of increased pressure.
Automatic selection of tidal volume, respiratory frequency and minute ventilation in intubated ICU patients as start-up procedure for closed-loop controlled ventilation.
A high positive end-expiratory pressure, low tidal volume ventilatory strategy improves outcome in persistent acute respiratory distress syndrome: a randomized, controlled trial.
With this type of breath, changes in airway resistance or lung/chest compliance will alter tidal volume (i.
The combination of changes in diastolic blood pressure, respiration, and tidal volume was the best composite for distinguishing among baseline and recollections of flow and overwhelming situations.
m] = the maximum possible flow velocity in cross-section A, and S = the surface area of the tidal volume at a certain time t.
The traditional mechanical ventilation approach is to give high priority to acid-base balance and patient comfort by targeting the initial tidal volume at 12 mL/kg of ideal body weight (IBW).
A measure of tidal entrainment, or mixing efficiency was sought, which could be applied to gross tidal volumes to provide volumes for material transport computations.
Pulmonary parameters such as tidal volume (TV), vital capacity (VC), forced VC (FVC), forced expiratory volume in first second ([FEV.
The reusable paediatric resuscitator is to deliver a tidal volume of up to 450mls.