An equivolume chart is a type of financial chart used to visualize and analyze the trading volume and price movements of an asset. It is a bar chart that displays two dimensions of data: the asset's trading volume and price range over a specific time period.

Each bar in an equivolume chart represents a single time period, such as a day, week, or month, and its width represents the trading volume during that time period. The height of the bar represents the asset's price range during that time period. The top of the bar represents the asset's highest price during that time period, while the bottom of the bar represents the lowest price.

The term “equivolume” refers to the fact that all of the bars in the chart have the same volume or thickness, regardless of price range or trading volume. This makes comparing the volume and price movements of different time periods on the same chart easier, as well as identifying any patterns or trends that may emerge. Analysts can gain insights into the asset's supply and demand, the strength of the market trend, and potential price movements in the future by examining the patterns and trends in an equivolume chart.

For example, a long bar with high volume and a narrow price range may indicate a consolidation pattern in which buyers and sellers are evenly matched and the price may break out in either direction in the future. A long bar with high volume and a wide price range, on the other hand, may indicate a strong bullish or bearish trend in which buyers or sellers are in control and the price may continue to move in the same direction.