Taking SC as the boundary to start the interval calculation, DOT has shown many positive volume and price events, the more obvious low-level and huge turnover with effort and causal deviation, and the rush for supply in the second test. After the spring , the price revealed a strong holding behavior, indicating that the floating supply has been largely cleared.We can expect to see a LPS which is the best buying point to test the trend. If it falls below the vertical demand column, it means that the marketmaker still intend to continue to suppress the price and extend the shock range.