As of October 2026 Constellation Energy has a market cap of A$133.32 Billion. This makes Constellation Energy the world's 258th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Oct 29th, 2026 the market cap of Constellation Energy was reported to be: