The bullish harami is a two-candle pattern: a large bearish candle followed by a small bullish candle whose body falls entirely within the first candle's body. After a downtrend, it's a potential bottom signal.
Early sign of weakening downside momentum. The small bullish candle after a large bearish one shows bears can't continue, and the market enters indecision. Signal strength is low and needs confirmation.
Low reliability (win rate 53%). Wait for a third bullish candle that breaks above the harami's high before entering long. Stop-loss below the large bearish candle's low.
More reliable after a large bearish candle at lows. The smaller the second candle (especially a doji), the stronger the reversal signal.