In the early morning, heavy weight stocks such as 601857 Petrochina and 601318 Ping An of China opened with a gap down. The Shanghai Composite Index directly broke through 3600 points and opened at 3659.94 points. Although subsequently various sectors quickly rebounded under the strong pull of the steel sector, and the Shanghai Composite Index rose wave by wave, it was obvious that the多方 did not intend to launch a major attack at the 3600 point integer关口. The rapid changes in the market reminded us once again that the risk of a short-term rebound is relatively high.