According to the Securities Times, since October 26th, there have been more than 1,600 questions about investors in the Shenzhen Stock Exchange. On October 28th, the A-share blockchain concept stocks soared, nearly 100 related concept stocks went up, and the market value of the blockchain sector increased by more than 100 billion yuan a day. However, some insiders have also warned that investors need to guard against the risks of disregarding fundamentals and blindly participating in them. It is not excluded that there are cases in which companies have mixed fish and hot spots to drive up stock prices. In fact, many listed companies only indicated that they would actively explore the blockchain and have no substantive involvement in the blockchain business.