NegativeVolumeIndex(Series) Method

We evaluate the Negative Volume Index(NVI) wich take in the consideration the days where volume decrease from the prevoius day.

[Visual Basic]
Overloads Public Shared Function NegativeVolumeIndex( _
   ByVal s As Series _
) As Series

[C#]
public static Series NegativeVolumeIndex( 
   Series s
);

Parameters

s: An series where the first element is the closing price in the last trading period, the second term is the closing price in the previous trading period and so on.

Exceptions

Exception	Description
ArgumentException	Thrown if the series is empty or contain negative values.

Remarks

Indicator Formula

The formula for this indicator is:

If the volume is less then the yesterday volume then: NVI = Yesterday's NVI + (((Close - Yesterday's Close)/Yesterday's Close) *Yesterday's NVI)
If today's volume is greater than or equal to yesterday's volume then:
NVI = Yesterday's NVI
Allways the first element of an financial array will be a value of the most recent period considered.

See Also

Language