Market maker refers to a securities business legal person with certain strength and credibility as a franchise dealer in the securities market, who constantly declares the buying and selling price of a certain securities to public investors (that is, two-way quotation), accepts the buying and selling requirements of public investors at this price, and trades securities with investors with its own funds and securities.

Market makers maintain market liquidity and meet the investment needs of public investors through this continuous trading. A market maker is a securities company that creates a market for financial products by providing quotations for buying and selling. The market maker system is a kind of securities trading method that forms the trading price with the quotation of market makers and drives the development of trading.