Bullish Engulfing
A bullish engulfing pattern is a two-candle reversal signal. The first candle is bearish (red), and the second candle is bullish (green) with a body that completely "engulfs" the first candle's body — opening at or below the prior close and closing above the prior open. It suggests buyers have overwhelmed sellers and a potential upward reversal may be starting.
Bullish Engulfing candlestick pattern diagram
Pattern Anatomy
- Candle 1: A bearish (red) candle — sellers were in control
- Candle 2: A bullish (green) candle whose body opens at or below the first candle's close and closes above the first candle's open
- The second candle's body completely covers ("engulfs") the first candle's body
- The wicks don't matter for pattern classification — only the bodies
How to Interpret
- Most significant after a sustained downtrend — signals potential reversal
- The larger the second candle relative to the first, the stronger the signal
- Volume confirmation: higher volume on the engulfing candle adds conviction
- Best when appearing at a known support level
- Not reliable in sideways/ranging markets
How Engulfy Detects the Bullish Engulfing
- Previous candle must be bearish (Close < Open)
- Current candle must be bullish (Close > Open)
- Current candle’s Open must be ≤ previous candle’s Close (opens at or below prior close)
- Current candle’s Close must be > previous candle’s Open (closes above prior open)
- Note: Engulfy follows standard Nison definitions — the current candle doesn’t need to gap down, just open at or below the prior close
Expert References
- Steve Nison, Japanese Candlestick Charting Techniques — notes the bullish engulfing is one of the most important reversal signals in candlestick analysis
- Thomas Bulkowski, Encyclopedia of Candlestick Charts — found bullish engulfing patterns act as bullish reversals approximately 63% of the time
Controversy & Limitations
- Strict vs. loose definitions — some texts require a gap down on the open, while Engulfy follows standard Nison definitions
- In modern markets with 24/7 electronic trading, true gaps are rarer, making the strict gap-down requirement less practical
- Statistical reliability is moderate at approximately 63% — meaningful but not a standalone trading signal