A candlestick chart is a visualization tool widely used by traders for technical analysis. Each trading period (whether that’s five minutes or a day) is represented by a candlestick (or candle) that shows the relative positions of four price points for that period: the high price, the low price, the opening price, and the closing price. To show this, each candlestick comprises a ‘real body’ and a ‘shadow’ (or ‘wick’): Changes in the length of the real body and the upper and lower shadows reveal the price action and give an insight into the emotion in the market. Bullish, or ‘up’, candlesticks are usually green or white. Bearish, or ‘down’, candles are usually red or black.