Method 1: check the total market value of listed companies at the end of the year in the company's annual report, which will have detailed contents.

Method 2: the price per share at the end of the year is multiplied by the number of shares of the company at that time (including circulating and non-circulating).

Take Huaneng as an example:

Huaneng international electric power co., ltd

Total share capital: 65,438+0,405,538,344 shares.

Corresponding stock price: 5.3 1 yuan.

Total market value: 7463408606640 yuan.