The index of North Exchange is to reasonably divide its influence weight on the index according to the market value of listed companies, and also to prevent some listed companies from being distorted because of their excessive weight, which cannot fully reflect the actual situation of the vast majority of listed companies. Compared with the market index, the index of North Exchange will reflect the actual situation of small and medium-sized innovative enterprises, and the preparation of stock index needs to select a certain number of samples from all listed stocks and a certain number of listed companies. The stock market of the North Exchange can be viewed on the Securities Star Market Center, which provides you with the latest, most comprehensive and refined real-time market of the North Exchange concept and the North Exchange concept index.

1. Significance of compiling the index of the North Exchange

1. Focus on the head enterprises of the North Exchange;

2. Improve the real-time dynamic trend of the overall market of the North Exchange;

3. provide a reference index for the growth of Beijing Stock Exchange to improve the discrimination;

4. reduce the information collection cost of investors in Beijing Stock Exchange;

5. It is convenient to develop and launch indexed products and extended products;

6. Enrich the channels for social capital to invest in Beijing Stock Exchange, and lead investors to actively participate in investment and trading;

7. improve the liquidity and activity of the north exchange market.

second, the difference between Beijing Stock Exchange and Shanghai Stock Exchange

1. From the perspective of industry structure, the companies of Beijing Stock Exchange are mainly distributed in information technology, industry and materials, and all the innovative small and medium-sized enterprises that Beijing Stock Exchange serves are "earlier, smaller and newer", with a small total market value and great fluctuation, so we should pay more attention to representativeness and the rationality of the weight ratio design when selecting constituent stocks.

2. Judging from the listing review criteria, the Beijing Stock Exchange explicitly prohibits the listing of five industries, namely, financial industry, real estate industry, overcapacity industry, elimination industry, pre-school education or discipline training enterprises, which is more accurately positioned in the characteristics of "specialized and innovative" SMEs.

iii. trading methods of Beijing Stock Exchange

The shares of the North Stock Exchange can be traded by bidding, block trading and agreement transfer. Among them, the relevant provisions of bidding transactions and block transactions are clearly defined in the trading rules; The specific requirements for the transfer by agreement shall be stipulated separately by the North Exchange. Considering the market liquidity and the trading needs of institutional investors such as Public Offering of Fund, institutional space is reserved for introducing mixed trading and after-hours fixed-price trading in the future.