As of August 2026 MGE Energy has a market cap of โน290.81 Billion. This makes MGE Energy the world's 4204th 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 Aug 6th, 2026 the market cap of MGE Energy was reported to be: