hammer: An important bottoming candlestick charting pattern. The hammer and the hanging man are both the same lines that are generally called umbrella lines; that is, a small real body (white or black) at the top of the session's range and a very long lower shadow with little or no upper shadow. When this line appears during a downtrend, it becomes a bullish hammer. For a classic hammer, the lower shadow should be at least twice the height of the real body when candlestick trading.
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