Interactive Market Course.
The bar chart consists of a vertical line and two small horizontal lines: to the right above and to the left below.
The horizontal line on the left side shows the opening price of the asset, and the horizontal line on the right side shows the closing price.
The vertical bar itself shows the range of prices that went into the trading platform for the selected period (1 minute, 1 hour, 1 day etc.). The lower edge of this vertical line is at the level of the lowest quote during this time, and the upper edge is at the level of the highest one.