Yes, it is stipulated by the China Securities Regulatory Commission. The minimum number of new shares to be listed in the stock market is 65,438+0,000, and the minimum number of shares to be listed in Shenzhen Stock Exchange is 500.
PS: But now the new shares are basically listed on the Shenzhen Stock Exchange (the code is 0 or 3 before, anyway, it is not 6 or 6 before listing), so now it is generally 500 shares.