If and when we close these gaps is more confirmation of a reversal and bullish move. Gap - Exhaustion: After an extended or long move, a gap in the direction of the current move is called an exhaustion gap. For an exhaustion gap to be considered valid, prices should reverse soon after the gap and close the gap. After an extended decline, a gap down could signal that the downtrend is about to exhaust itself. An exhaustion gap is confirmed when prices reverse soon afterwards and move above (or "close") the gap.