There are only two stock exchanges in China, Shanghai Stock Exchange and Shenzhen Stock Exchange, and the rest are securities companies. This is a member of the stock exchange, in fact, it is an intermediary for buying and selling stocks. As for what stock exchange is good, in fact, both are the same; As for what securities company is good, it mainly depends on the convenience and security of trading, as well as the quality of service and commission level to choose and compare.