Three Inside Up / Three Inside Down
The Three Inside Up and Three Inside Down are three-candle candlestick reversal patterns that historically have appeared at the end of trends, with the first two candles forming a Harami and the third candle confirming the directional change.
The Three Inside Up pattern is a bullish reversal formation historically observed at the bottom of a downtrend. It begins with a large bearish candle, followed by a smaller bullish candle whose body fits entirely within the first candle's body — forming a Bullish Harami. The third candle is a decisive bullish close above the high of the second candle, confirming that the bears have lost momentum and that the bulls are taking control.
The Three Inside Down is the mirror image, historically observed at the top of an uptrend. It starts with a large bullish candle, followed by a smaller bearish candle fitting within the first body — a Bearish Harami — and completes with a strong bearish close below the second candle's low. The third candle is the critical confirmation, and chartists have historically treated a pattern without this third confirmation as incomplete and less reliable.
In Indian markets, this pattern has been observed frequently during major index trend reversals on Nifty 50 and Bank Nifty weekly charts. For instance, after a prolonged downtrend driven by FII selling, a Three Inside Up on the weekly timeframe has historically preceded multi-week recovery rallies. The confirmation candle is particularly important in Indian mid-cap and small-cap stocks, where liquidity is lower and false reversal signals are more common.
Volume analysis adds significant weight to the pattern. Historically, patterns accompanied by rising volume on the third confirmation candle have been associated with stronger and more sustained reversals. When volume on the third candle surpasses the volume on the first bearish candle in the Three Inside Up, technicians have interpreted this as institutional accumulation.
The pattern is best used in conjunction with support and resistance levels. A Three Inside Up forming at a historically significant weekly support level on a Nifty 50 constituent, combined with an oversold RSI reading, has historically provided stronger confluence than the candlestick pattern in isolation. Traders also watch for the pattern to occur near key moving averages such as the 200-day EMA.
One limitation historically observed in Indian equities is that this pattern in highly volatile sectors — pharmaceuticals, metals, or PSU banks — can sometimes fail when the broader market trend is strongly against the pattern direction. Sector rotation and FII flow data are useful additional filters when evaluating Three Inside Up or Three Inside Down signals on individual stocks.