The Three Inside Up is multiple candlestick pattern which is formed after a downtrend indicating bullish reversal.
It consists of three candlesticks, the first being a long bearish candle, the second candlestick being a small bullish candle which should be in the range the first candlestick.
The third candlestick should be a long bullish candlestick confirming the bullish reversal.
The relationship of the first and second candlestick should be of the bullish harami candlestick pattern.