NANO seems to be forming an ascending triangle as part of a reversal pattern from the recent downtrend. There's been a visible decrease in selling volume the past few days and a sudden recent increase in buy volume (continuously increasing on the 4h time frame) that may be indicative of a trend reversal on its way). It's safe to say that a buy at the touch of the bottom trendline seems to be a good approach as there's a visible rejection and is confirmed as a solid buy zone. If the ascending triangle pattern does hold, then keep an eye for a breakout above as a big buy signal and bullish trend continuation confirmation