|Company||Market Cap (USD)|
|CGN Power Co. Ltd||$18.04 B|
|China National Nuclear Power Co. Ltd||$16.56 B|
|Huaneng Power International, Inc.||$15.23 B|
|Siemens Energy||$13.70 B|
|Power Assets Holdings Ltd||$11.80 B|
The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.