Stock is a part of the ownership of a joint-stock company and a certificate of ownership issued by a joint-stock company. It is a kind of securities issued by a joint-stock company to all kinds of shareholders, as a shareholding certificate to obtain dividends and bonuses.

Stocks are long-term credit instruments in the capital market and can be transferred and traded. With it, shareholders can share the company's profits, but also bear the risks brought by the company's business mistakes. Each share represents the shareholder's ownership of the basic unit of the enterprise. Every listed company will issue shares.

Primary market:

The primary market, also known as the issuance market, refers to the market where companies sell newly issued shares to investors directly or through intermediaries. The so-called newly issued shares include initial shares and re-issued shares. The former is the original shares that the company sells to investors for the first time, and the latter is to add new shares on the basis of the original shares.