Range layout: Try shorting with a light position near 17800-17900, and try with a small stop loss. Steady attention will be around 18200-18300. Zhongyang pulled up from the daily low, and the low in the market outlook once again formed a stop signal, but MACD is still below the zero axis, and the market is under short pressure. Pay attention to the upper resistance near 18200-18300. After closing the inverted hammer line in another 4 hours, a high is formed. For resistance and key support below, pay attention to around 16700-16600. If the market outlook continues to decline, it is recommended to look further down. A short-term upward trend line is formed in 1 hour. The short-term support below should pay attention to around 17000-17100. The platform resistance above should pay attention to around 17800-17900. It is recommended to pay attention to the range layout in the short-term under pressure. In 15 minutes, the Bollinger Track gradually formed a weak form. It is recommended to continue to pay attention to the rebound high in the market outlook.