With a market capitalization (market cap) of $30.35B — a measure of how much the company is worth — Ameren Corporation is the 467th most valuable company in Utilities as of August 19, 2026. Shares trade at $109.67, up +0.18% on the day.
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Operating across the United States, Ameren Corporation functions as a utility holding company. The enterprise organizes its operations into four primary divisions: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. Its fundamental business involves the rate-regulated production, transmission, and supply of electricity, in addition to the rate-regulated distribution and transmission of natural gas. Ameren generates power using a variety of sources, including coal, nuclear energy, and natural gas, supplemented by renewable alternatives such as hydroelectric, wind, methane gas, and solar. Its customer base encompasses residential homes, commercial businesses, and industrial operations. Established in 1881, Ameren Corporation is headquartered in St. Louis, Missouri.
Visit websiteAs of August 19, 2026, Ameren Corporation (AEE) is worth $30.35B — this is its market capitalization, the total value of all its outstanding shares.
Ameren Corporation’s market cap is $30.35B, which ranks it #467 among the most valuable companies in the Utilities sector tracked on MarketCapLens.
Ameren Corporation (AEE) shares trade at $109.67, up 0.18% on the day, as of August 19, 2026.
Ameren Corporation trades at a price-to-earnings (P/E) ratio of 20.4, based on its latest share price and annual earnings per share.
Fundamentals are annual. Figures labeled with their fiscal year.
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