On Balance Volume

Calculation

On Balance Volume (OBV) represents a momentum indicator that relates price and volume, attempting to quantify whether price movement is supported by volume. It accumulates volume on up days and subtracts volume on down days, providing a running total that suggests buying or selling pressure. A rising OBV generally confirms an uptrend, while a falling OBV suggests a downtrend, offering insight into potential trend reversals or continuations within cryptocurrency, options, and derivative markets. Divergences between price and OBV can signal weakening momentum, potentially foreshadowing a change in market direction.