Forex encyclopedia

On Balance Volume (OBV) – is an indicator applied in Forex technical analysis. This indicator was firstly described by Joseph E. Granville in 1963 in his book “New Key to Stock Market Profits” . Author applied the indicator for commodity market analysis, because considered volume figure to be a key driving force. The main point is the possibility to forecast change of price on the basis of changing trading volume. Although at present the indicator “On Balance Volume” has a widespread application for analysis of the Forex market.

Parabolic SAR is the technical indicator developed by Welles Wilder for analyzing trend movements. The first time it was announced in a famous book “ New Concepts in Technical Trading Systems” published in 1976. SAR stands for as “stop and reverse”. Parabolic SAR is one of a few indicators that signalize about closing of positions. In many respects Parabolic is similar to a moving average with the only difference that SAR can change position against price. Under ascending tendency, the indicator is drawn under prices (candles, bars), under descending tendency it is put above prices. When price crosses Parabolic line, reversal of the indicator takes place.