Bar Charts

The concept of a bar chart is simple. On a graph the horizontal axis represents time, and the vertical axis represents price levels. Within that graph, a single bar or vertical line will represent the range or the high and low points that prices reached during a given time period. A small hash line or horizontal mark on the left side of the bar identifies the opening price; another hash mark or horizontal line on the right side of the bar indicates the closing price for that time period. The time represented by the vertical bar could be 1 minute, 5 minutes, 60 minutes, a day, a week, a month, or even a year.