NVI (Function)

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The NVI series function determines the Negative Volume Index. NVI is a cumulative value (starting from 100) that is calculated by adding the percent change of the Close (from the prior bar) to the prior bar NVI value if the volume of the current bar is less than the volume of the prior bar. Since this is an accumulative calculation, the function must be a series function to ensure it is called on every bar.

Syntax

NVI

Returns (Double)

A numeric value for NVI based on the current bar type. Uses volume for Daily, Weekly, or Monthly bars. Other bar intervals uses ticks.

Parameters

None

Reference

Norman G. Fosback, Stock Market Logic, Dearborn Financial Publishing, Inc., 1976, 1993.