The informatization of securities trading refers to putting all matters related to trading online, and many businesses of securities companies do not need to be handled on the spot. Informatization represents an ideal state in which information technology is highly applied and information resources are highly shared, so that people's intellectual potential and social material resources potential are fully exerted, and personal behavior, organizational decision-making and social operation tend to be rationalized. At the same time, informatization is based on the development of information technology industry and the popularization of information technology in various fields of social economy, and it is a continuous process of constantly using information technology to transform the traditional economic and social structure so as to achieve the above ideal state. In essence, it is an open, transparent and decentralized value transfer network, which is combined into a specific data structure in the form of information in time order, and the data structure is guaranteed not to be tampered with and forged through cryptography.

1. Securities trading, in English, refers to the behavior of securities holders to transfer securities to other investors according to trading rules. Securities trading is a transaction of securities issued according to law and subscribed by investors, a transaction of specific rights with property value and a transaction of standardized contracts. The ways of securities trading include spot trading, futures trading, option trading, credit trading and repurchase. The market formed by securities trading is the trading market of securities, that is, the secondary market of securities.

2. Informatization refers to the historical process of cultivating and developing new productive forces represented by computer-based intelligent tools and making them benefit the society. The productivity adapted to intelligent tools is called information productivity. Informatization is a technology based on modern communication, network and database technology, which integrates all the elements of the research object into the database and is used for life, work, study and decision-making closely related to human beings. After using this technology, it can greatly improve the efficiency of various behaviors, reduce costs, and provide great technical support for promoting the progress of human society.