A Bar Chart (also known as OHLC chart) is a chart type based on vertical lines. Each vertical line represents the configured interval (time or trades #) and have two horizontal lines, one on each side. The high point of the vertical line is the highest rate of the asset in the interval; the lowest point is the lowest price in the time interval. The left horizontal line is the open price and the right horizontal line is the close price. The bar chart is a very informative chart and therefore it is very popular among traders that use technical analysis.