Cumulative Volume Delta (CVD) is a trading indicator that measures the net difference between buying and selling pressure by accumulating tick volume data over time. It tracks the balance of volume traded at the bid and ask prices to provide insight into market sentiment and potential price movements. This indicator helps traders identify shifts in supply and demand dynamics by highlighting whether buying or selling activity dominates during a given period. CVD is used as a signal tool to support trade entry decisions based on volume analysis.