This indicator gauges the magnitude of price and volume movement. The indicator returns both positive and negative values where a positive value means the market has moved up from yesterday's value and a negative value means the market has moved down. A large positive or large negative value indicates a large move in price and/or lighter volume. A small positive or small negative value indicates a small move in price and/or heavier volume. A positive or negative numeric value. A positive value means the market has moved up from yesterday's value, whereas, a negative value means the market has moved down.