Interval layout: Try shorting with a light position near 16400-16500, and try with a small stop loss. The decline continued in the 4 hours, MACD dropped below the zero axis, and short-term short positions opened. Pay attention to the resistance in the upper range around 16600-16700, and the key support in the lower part to pay attention to 15400-15500. The low of the daily range has not been opened yet, so pay attention to the layout of the range for the time being. Three consecutive positives at the 1-hour low, MACD's golden cross below the zero axis, the low Bollinger Track is temporarily oversold and rebounds, short-term oversold rebound, short-term support focuses on 15800-15900. The 15-minute high closed the hammer line, and the disk MACD also fell back with a dead cross. Short-term resistance focuses on the vicinity of 16400-16500, and short-term focus on the layout of the low range.