Bullish Hammer
The Bullish Hammer is a single-candle reversal pattern with a small body near the top and a long lower shadow. It appears during downtrends and signals that sellers pushed prices lower during the session, but buyers stepped in and drove the price back near the open. The green (bullish) body means the close was above the open, adding a slightly bullish tint to an already bullish shape.
Bullish Hammer candlestick pattern diagram
Pattern Anatomy
- Small real body near the top of the trading range.
- Long lower shadow (tail) — significantly longer than the body.
- Little to no upper shadow.
- Body sits in the upper portion of the total range.
- Green/bullish body (close > open) — distinguishes it from the Bearish Hammer.
How to Interpret
- Most significant at the bottom of a sustained downtrend — suggests selling pressure is exhausting.
- The long lower shadow represents a strong intra-period rejection of lower prices.
- Confirmation: look for the next candle to close above the hammer's body.
- Works better near known support levels.
- Higher volume on the hammer day increases reliability.
How Engulfy Detects the Bullish Hammer
- Lower shadow must be dominant: significantly longer than the body.
- Upper shadow must be small relative to the body.
- Body must be in the upper portion of the candle’s range.
- The candle must be bullish (close > open) to qualify as a Bullish Hammer specifically. A bearish version of the same shape is classified as a Bearish Hammer.
Engulfy uses calibrated thresholds optimized for real-world market conditions, catching hammers with very small bodies that strict classical definitions would miss.
Expert References
Steve Nison considers the hammer one of the most recognizable reversal patterns in candlestick charting, noting its clear visual signal of buyer strength after a decline. Thomas Bulkowski's statistical research shows that hammer patterns appearing at trend bottoms reverse successfully roughly 59–60% of the time, making them one of the more reliable single-candle signals.
Controversy & Limitations
The distinction between a bullish and bearish hammer is subtle — it comes down to just the candle color. Some analysts treat all hammers equally regardless of body color, arguing the shape matters more than whether the close was slightly above or below the open. The pattern also appears frequently, so many occurrences are noise rather than meaningful reversals. Always look for confirmation and supporting context before acting on a hammer signal alone.