Interval layout: There are many light positions near 16400-16500, try small positions. The daily line closes at the mid-term line at a low level, and the disk touches the lower track support of the Bollinger Track. For strong support, pay attention to around 16000-15600. The 4-hour pressure range is high, and the Bollinger Track gradually returns to a volatile trend. Pay attention to the upper trend line resistance near 17300-17400, and pay attention to the interval layout in the short term. In 15 minutes, MACD shrunk and fell below the zero axis, with the market high under pressure at mid-term resistance of 16900-17000. In the Bollinger Track pressure range channel, the support at the bottom of the hourly chart should be noted at 16400-16500. Under the pressure of the key neckline resistance, temporarily pay attention to the opportunity of falling first and then rising. In the future, we will pay attention to the short-term resistance above.