This chart type uses the same price data as regular bar charts, with each candlestick representing the open, high, low, and close. The thick part, called the real body, represents the range between opening and closing prices. Long thin lines, shadows and wicks/tails, represent the range of price movement for the bar.
Cumulative Delta is based on direction-based volume accumulation, not on price. The scale of the chart shows volume and bars represent accumulated delta (buy – sell) of the volume for specified resolution. In trending markets CD will move into positive or negative values, while it will oscillate around zero in non-trending markets.