Candlestick charts are by far the most popular chart type employed by traders the world over. They go back to 19th century Japanese traders, who used them to plot the fluctuating price of rice. Each candlestick represents the price action that has taken place in a given period of time, and includes that period’s open, close, high and low prices. Candlesticks comprise a body (the rectangular part) and a wick (the lines extending above and below the body). The top and bottom of each rectangle represent the opening and closing prices, while the wicks above and below the body represent the highs and lows reached within the given period.