A Bullish On-Neck Line candlestick formation is a 2-candlestick continuation pattern that occurs during an uptrend. The first candle is a long-bodied green candle that moves in the direction of the uptrend. The second candle is a small-bodied, red candle that gaps up on the open, opening above the close of the previous candle and sometimes even above the high of the previous candle. It then comes back down and closes at or above the close of the previous candle, but not below.