OHLC (Open High Low Close) Graphs are a style of Bar Graph used primarily to describe price movements of a security, derivative, or currency over time. They are most often used in technical analysis of equity and currency price patterns. OHLC Graphs are similar to Candlestick Graphs in that they also display time-based distributions of price data. As with the Candlestick, the vertical line defines the range of traded prices across the period. OHLC Graphs are different in that the left notch corresponds to the opening price and the right notch displays the closing price.