Massive descending channel on ZS with a possible retest of upper trendline.
If you zoom in on a smaller time frame (1HR) you can clear see some resistance at 163.94 / 164 level. This level has been holding for a week now.
If that level breaks, there is not much resistance until 186 which is 5/22 lows and trendline from the highs in December. A great R:R trade.