A pin bar at the bottom of a price move indicates strong buying interest and potential bullish reversal after a decline. It is characterized by a long lower wick and a small real body near the top, showing that sellers initially pushed the price lower but buyers aggressively stepped in and rejected those lower levels. This price rejection reflects a shift in market sentiment from selling pressure to demand, especially when the pin bar forms at a support zone, trendline support, or demand area. When confirmed by the next candle closing higher, a bottom pin bar often signals the start of an upward move or trend reversal, though context and overall trend should always be considered.