Dual Range Histogram Series

The Dual Range Histogram is a versatile column-based visualisation designed to represent paired positive and negative value ranges for each time point. Each group of columns consists of two positive (upward) bars—typically differentiated by light and dark shades—and two negative (downward) bars, also in contrasting shades. The lighter columns represent the total extent of a metric (such as run-up or drawdown), while the darker columns indicate a subset or related component that must always be less than or equal to the corresponding lighter column. This structure allows for clear comparison between total and partial values within both positive and negative domains. The Dual Range Histogram is well-suited for financial analysis, performance backtesting, or any scenario where it is useful to visualise both the magnitude and composition of upward and downward movements over time.