As of May 2026 Duke Energy has a market cap of A$133.25 Billion. This makes Duke Energy the world's 232th 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 May 12th, 2026 the market cap of Duke Energy was reported to be: