2. Shanghai and Shenzhen stock markets: Shanghai and Shenzhen stock markets refer to stock exchanges mainly engaged in stock trading in Shanghai and Shenzhen. At present, there are only two stock exchange markets in China, namely, Shanghai and Shenzhen. Shenzhen Stock Exchange is a small and medium-sized board and a venture capital board. Shanghai stock market is the leading market in China, ranking first in terms of the number of listed companies, the number of listed stocks, the total market value, the market value of circulation, the total turnover of securities, the turnover of stocks and the turnover of national debt.
3. Sector: The stock sector is mainly classified by industry, concept and region. Among them, the industries are divided according to the fields of listed companies, such as coal, textiles and medicine. The region is mainly divided by provinces; Concepts are divided according to weight, hot spots and characteristic themes.
4. Hong Kong Stock Connect: Investors buy shares of Hong Kong Stock Connect. On the one hand, if an investor entrusts a mainland securities company to buy and sell shares of Hong Kong Stock Connect, the securities company will report to the stock exchange through the securities trading service company of Shanghai Stock Exchange after accepting the entrustment. After the declaration is made on the trading platform of the stock exchange, the transaction will be returned to the securities companies and investors through the same path. On the other hand, in terms of settlement and delivery, investors settle accounts with China through securities companies, while China Settlement, as the nominal holder of the shares of Hong Kong Stock Connect, settles accounts with Hong Kong and performs settlement responsibilities.