On the first trading day of the opening of the North Stock Exchange, 8 1 stock was listed and traded, of which only 10 was a new stock, and there was no increase on the first day of listing. 8 1 The stock covers 25 major industries of the national economy, 17 is a "little giant" enterprise specializing in special innovation. Machinery and equipment, pharmaceutical and biological enterprises are the main force of listed companies in the North Exchange, with 23 companies. The growth and profitability of listed companies in Beijing Stock Exchange are better than that of the main board. The newly listed 10 stocks are: Zhisheng Information (832 17 1. BJ), Dida Electric (870436. BJ), concentric drive (833454. BJ), Central Shares (836260. BJ) and Guangdao Hi-Tech (8399). Hanxin technology (837092. BJ), China News Agency (833873. BJ), Keda Automation (83 1832. BJ), Jingsai Technology (87 198 1. BJ)。

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Concept stocks refer to stocks with some special connotations, as opposed to blue-chip stocks. Blue-chip stocks need good performance support. Concept stocks rely on a certain theme, such as the concept of asset reorganization and the concept of three links to support prices. This connotation is usually regarded as a theme of stock selection and speculation, and has become a hot spot in the stock market. Concept stocks are stock market terms, as a way of stock selection. Compared with blue-chip stocks, they must have good business performance support, and concept stocks are only a combination of stocks with the same theme and type. Because of the advertising effect of concept stocks, there is no guarantee of any profit.

The concept of stock market was originally a general term for a class of stocks with the same characteristics. For example, the Olympic concept refers to a group of companies that have business opportunities to host the Olympic Games. There are many such concepts, such as network concept, 3G concept, WTO concept, biomedicine concept, overall listing concept and stock index futures concept. However, in the stock market, the internal meaning of the concept is not only a generalization of a certain stock category, but its extended meaning is a kind of market knowledge. For example, the concept of network, before the network became a concept, the stocks involved in the Internet could only be called plates at best, which was a neutral definition, but the meaning of becoming a concept changed. This concept is a relatively positive investment knowledge. Investors will make very detailed analysis and research on the industry background, investment opportunities and future prospects of concept stocks, and they are not always confident to report them.

It has a very powerful advertising effect. A stock itself may not be very attractive, but once it is included in a concept, it will be closely watched by all investors. For example, a company made canned food in the early days, and then produced some products such as mineral water. The performance was mediocre and the industry was outdated. Few investors paid attention to this company. After that, the company turned into a network concept stock, and did open an e-commerce website, mainly selling its mineral water. So this stock immediately became the focus of attention in the stock market.