On February 17, the stock indexes of the two cities continued to rebound, but individual stocks fell more and rose less. As of the close, the Shanghai index rose 0.06%, the Shenzhen Composite Index rose 0.35% and the gem index rose 0.76%. In terms of sectors, the concept of lithium mine rose sharply, Tianqi Lithium Corporation(002466) , Sinomine Resource Group Co.Ltd(002738) and other stocks rose by the limit; Environmental protection, lithium extraction from salt lakes, phosphorus concept and nonferrous metals also rose sharply. Tourism, media, etc. fell sharply. More than 50 stocks in the two cities rose by 10% or more, nearly 3000 stocks fell, and more than 10 stocks such as China United Travel Co.Ltd(600358) , Poly Union Chemical Holding Group Co.Ltd(002037) fell by the limit.