With a market capitalization (market cap) of $3.07B — a measure of how much the company is worth — MGE Energy, Inc. is the 1800th most valuable company in Utilities as of August 18, 2026. Shares trade at $81.25, up +0.27% on the day.
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MGE Energy, Inc. operates as a public utility holding company, primarily conducting its business in Wisconsin through various subsidiary entities. The company's operations are divided into several key segments: Regulated Electric Utility, Regulated Gas Utility, Nonregulated Energy, Transmission Investments, and an "All Other" category. Its core activities involve the generation, acquisition, and delivery of electricity, utilizing owned or leased power generation facilities situated in both Wisconsin and Iowa. Furthermore, MGE Energy undertakes the planning, construction, operation, maintenance, and expansion of transmission infrastructure to provide essential transmission services. The company's electricity generation portfolio includes coal-fired, gas-fired, and renewable energy sources, supplemented by power purchased under both short-term and long-term agreements. As of December 31, 2021, MGE Energy was supplying electricity to 159,000 customers in Dane County, Wisconsin, and distributing natural gas to 169,000 customers across seven Wisconsin counties. The company maintains its corporate headquarters in Madison, Wisconsin.
Visit websiteAs of August 18, 2026, MGE Energy, Inc. (MGEE) is worth $3.07B — this is its market capitalization, the total value of all its outstanding shares.
MGE Energy, Inc.’s market cap is $3.07B, which ranks it #1800 among the most valuable companies in the Utilities sector tracked on MarketCapLens.
MGE Energy, Inc. (MGEE) shares trade at $81.25, up 0.27% on the day, as of August 18, 2026.
MGE Energy, Inc. trades at a price-to-earnings (P/E) ratio of 21.8, based on its latest share price and annual earnings per share.
Fundamentals are annual. Figures labeled with their fiscal year.
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