A candlestick chart is a price chart that displays the open, high, low, and close for a security over a specific time period. Each candlestick represents one period, such as one minute, one hour, or one day. The rectangular body shows the range between the open and close. A green or white body means the close was higher than the open (bullish), while a red or black body means the close was lower (bearish). Thin lines extending from the body, called wicks or shadows, mark the high and low. By analyzing the size of the body and the length of the wicks, a trader can quickly gauge buying and selling pressure, identify potential reversals, and make more informed entry and exit decisions.
Every candle contains four data points. The open is the first traded price in the period. The close is the last traded price. The high is the highest price reached, and the low is the lowest. The body is the thick part between open and close. If the close is above the open, the body is typically colored green or white. If the close is below the open, it is red or black. The upper wick extends from the top of the body to the high; the lower wick extends from the bottom to the low. A candle with no upper wick has a high equal to the open or close, and a candle with no lower wick has a low equal to the open or close.
The body size reflects the strength of the move. A long green body indicates strong buying pressure, with price closing far above the open. A long red body shows strong selling pressure. A small body, where open and close are nearly equal, signals indecision. This is often called a doji when the body is extremely small or nonexistent. Wicks reveal rejection. A long upper wick on a green candle means buyers pushed price higher but sellers forced it back down before the close. This can signal a potential bearish reversal if it occurs after an uptrend. A long lower wick on a red candle shows sellers drove price down but buyers stepped in, pushing it back up, which can hint at a bullish reversal. Candles with no wicks, called marubozu, indicate one-sided dominance. A green marubozu has no wicks and closes at the high, showing relentless buying. A red marubozu opens at the high and closes at the low, showing persistent selling.
Single candles and combinations of candles form patterns that traders use to anticipate price direction. A hammer has a small body near the top of the range and a long lower wick at least twice the body length. It appears after a downtrend and suggests a possible bullish reversal. A shooting star has a small body near the bottom and a long upper wick, appearing after an uptrend and hinting at a bearish reversal. An engulfing pattern involves two candles. A bullish engulfing pattern occurs when a small red candle is followed by a large green candle whose body completely covers the previous red body. This signals a shift from selling to buying pressure. A bearish engulfing pattern is the opposite: a small green candle followed by a large red candle that engulfs it. Other patterns like morning star, evening star, and three white soldiers provide additional context, but they all rely on the same principles of body and wick analysis.
A candlestick on a 5-minute chart tells a different story than one on a daily chart. Shorter timeframes are noisier and more prone to false signals. Longer timeframes, such as daily or weekly, carry more weight and are often used to identify the primary trend. Many traders use multiple timeframes. For example, a trader might check the daily chart to confirm an uptrend, then drop to a 1-hour chart to find a bullish engulfing pattern as an entry signal. Without context, a single candlestick pattern can be misleading. A hammer at the top of an uptrend is not a reversal signal; it is just a candle with a long lower wick. Always interpret patterns in relation to the prevailing trend and nearby support and resistance levels.
Consider a hypothetical stock ABC that has been in a downtrend for several days. On a daily chart, the price opens at $50.00, falls to a low of $48.50, then rallies to close at $50.20. The candle has a small green body (open $50.00, close $50.20) and a long lower wick from $50.00 down to $48.50. This is a hammer. The long lower wick shows that sellers pushed the price down by $1.50, but buyers absorbed the selling and drove the price back above the open. The next day, the stock opens at $50.30 and closes at $52.00, forming a large green candle that engulfs the previous day's small body. This confirms the hammer as a bullish reversal signal. A trader might enter a long position near $52.00 with a stop-loss below the hammer's low at $48.40, risking $3.60 per share. The target could be a prior resistance level around $55.00. This example illustrates how body size, wick length, and follow-through combine to create a trade setup.
1. Identify the timeframe and the overall trend using a longer period chart.
Prepared with AlphaScala editorial tooling, examples, and risk-context checks against our education standards. General education only, not personalized financial advice.