OBV was developed by Joe Granville and introduced in his 1963 book, OBV is stand for On Balance Volume, This indicator is a momentum Forex indicator that relates volume. OBV mq4 is very simple indicator. When the market price close lower than the previous close price , then the volume determined down volume. When the market price closes higher than the previous close price, the volume determined up volume. On-balance volume (OBV) is one of mt4 indicators.
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