The On Balance Volume indicator shows a relationship of price and volume as a momentum index.
On Balance Volume index generally precedes actual price movements. The premise is that well-informed investors are buying when the index raises and uninformed investors are buying when the index falls.
|applyTo||The value can be one of ENUM_APPLIED_PRICE
|volumeVal||The value can be one of ENUM_VOLUME_METHOD|
Returns the handles of a technical indicator, in case of failure returns a empty string.