A stock may have no premarket volume and then gap up at the open on occasion. It is not required for a stock to have premarket volume in order to gap. Gaps frequently occur at the opening bell, which is why having a gap and go scanner like Trade Ideas that searches for these stocks for you is critical. A news catalyst is frequently responsible for a stock's premarket volume. Following a technical breakout, a stock may occasionally gap up without any news. When trading stocks that are surging without a significant news catalyst, exercise caution. Trading them is permissible, but you must ensure that your risk management measures for trading are in place. When this happens, the g&g method must be used.