Monday daytime market shows an inverted V-shape pattern, with the price rising to around 87,600, then pushing up to around 90,300 before falling back to around 87,700. As previously mentioned, the key resistance point for the upside is around 90,500; a breakout and stabilization above this level would indicate a further upward move. From the current daily chart structure, the upside momentum shows a long upper shadow on the candlestick, with the opening gradually closing in, and the four-hour structure indicates increasing downside pressure with touches to the midline, gradually forming a downward crossover. The hourly structure shows a shift from upside to downside momentum, forming a downward crossover. There is still room for the downside, with short-term bearish volume decreasing and bouncing back. The strategy for the evening is to consider entering high short positions, and to add to positions on rebounds when the price bounces back.