A Bar Chart, also known as a OHLC chart, is a graphical representation of price movements over time. Each bar typically shows the open, high, low and close prices for the given time period. This information can be used to analyze price fluctuations and trends in an asset or security.Bar charts are often used to visualize stock prices or commodity futures contracts. They can help you identify buying and selling opportunities by highlighting patterns in price movement. For example, if the bars on your chart are consistently getting taller over time this could indicate that demand for the asset is increasing.Bars on a bar chart can be either solid or filled with color; in addition, the width of each bar can be varied to emphasize different aspects of the price movement. The use of bars allows for easy comparison between securities or instruments with different pricing scales. For example, it is easier to compare how two stocks have performed over time when their bars are displayed on the same graph using an appropriate scale.
Bar charts are often used in technical analysis as one tool for forecasting future price movements.