The codes of better domestic stocks are not fixed; the reason is that different stocks have different codes;

For example, 600*** is the stock code listed on the Shanghai Stock Exchange, 6006* * is the earliest listed stock. A company's stock code is similar to its license plate number, which can show the company's strength and popularity, such as 000088 Yantian Port and 000888 Emeishan.

Shanghai A shares: The codes for Shanghai A shares start with 600, 601, 603 or 605;

Shanghai B shares: The codes for Shanghai B shares start with 900 Starting with;

Science and Technology Innovation Board: The code of Science and Technology Innovation Board starts with 688;

Shenzhen A-shares: The code of Shenzhen A-shares starts with 000;

< p>Small and Medium-sized Board: The code of Small and Medium-sized Board starts with 002;

Shenzhen B shares: The code of Shenzhen B shares starts with 200;

Extended information:

Securities listed on the Shanghai Stock Exchange use a 6-digit compilation method according to the Shanghai Stock Exchange's "Securities Coding Implementation Plan". The first 3 digits are to distinguish the types of securities. The details are listed in the following table: 001××× Treasury Bond Spot; 110 ××× 120 × XX fund; 600×××A shares; 700××× allotment; 710××× transfer allotment; 701××× transfer allotment and then allotment; 711××× transfer allotment and then transfer allotment; 720××× bonus; 730 Subscription for ××× new shares; 735 ××× new fund subscription; 737 ××× new share allotment; 900 ××× B shares.

The trading code of A stock in Shanghai Stock Exchange starts with 600, 601 or 603. For example: Yunsheng Industrial: the stock code is 600767. Air China: The stock code is 601111. Yingliu Shares: The stock code is 603308. The trading code of B shares starts with 900, for example: Instrument B shares: the code is 900901.

The codes for new stock subscriptions on the Shanghai Stock Exchange start with 730. For example: CITIC Securities: the subscription code is 730030. The code for subscription of new shares in the Shenzhen Stock Exchange is the same as the stock trading code in the Shenzhen Stock Exchange. For example, the market value allotment code of CITIC Securities in the Shenzhen Stock Exchange is 003030.