Pump Catcher

This indicator attempts to detect moments of abnormal and accelerating increase in volume. Because pumps happen over short time frames, this script is potentially better used on smaller timeframes (1 - 15 minutes). It takes two inputs: [1] The length of the lookback for the volume rate of change (vroc) calculation (default=20), and [2] The threshold over which a pump is determined to have happened (0-100, default=50). The vroc has been normalised to a result between 0 (no rate of change) and 100 (maximum rate of change the asset has ever undergone to date).