Ameren Corp
- Industry
- Electric Utilities
- Exchange
- US
- Country
- USA
- IPO date
- Jan 2, 1998
- Employees
- 8,913
- Website
- www.amereninvestors.com
Composite valuation range · conservative $65–$80 / fair $85–$100 / optimistic $105–$120. At $112.11, Within the optimistic intrinsic-value range · much expectation priced in.
At publication $111.29 (May 23, 2026)
Data from EODHD, shown in the reporting currency; for reference only, not investment advice.
Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. The company operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. It engages in the rate-regulated electric generation, transmission, and distribution business and natural gas transmission and distribution business. The company also generates electricity through coal, nuclear, and natural gas, as well as renewable energy, including hydroelectric, wind, methane gas, and solar energy centers. It serves residential, commercial, and industrial customers. Ameren Corporation was founded in 1881 and is headquartered in Saint Louis, Missouri.
History
Ameren Corporation, a public utility holding company headquartered in Saint Louis, Missouri, was founded in 1881 and went public on January 2, 1998. The company is organized into four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. Through its Ameren Missouri, Ameren Illinois, and ATXI (FERC-regulated regional transmission) entities, it has grown into a rate-regulated electric and natural gas utility serving roughly 2.5 million electric customers and more than 900,000 natural gas customers across about 64,000 square miles, employing roughly 8,913 people. Its generation fleet spans coal, nuclear, and natural gas, along with renewable sources including hydroelectric, wind, methane gas, and solar. The company's regulated infrastructure rate base is expected to expand from about 28.8 billion dollars in 2025 to roughly 47.7 billion dollars by 2030, a roughly 10.6% CAGR.
Industry position
Ameren operates as a rate-regulated electric generation, transmission, and distribution and natural gas distribution utility, earning revenue at regulator-approved rates within the franchise service territories of Ameren Missouri (Missouri) and Ameren Illinois (Illinois), with ATXI conducting FERC-regulated regional transmission. Its 2025 electric sales across Ameren Missouri and Ameren Illinois Electric Distribution totaled 69.416 billion kilowatt-hours, and natural gas sales totaled 192 million dekatherms, served to residential, commercial, industrial, and public-authority customers. Ameren Illinois additionally serves as provider of last resort in its territory. The business operates under MoPSC, ICC, and FERC regulation and must comply with NERC and FERC reliability and cybersecurity standards; its position rests on regulatory franchises, geographic service-area exclusivity, and entrenched grid, pipeline, and transmission assets that are difficult to replicate. Its principal comparables are other regulated utilities such as WEC Energy, Duke Energy, Xcel Energy, Evergy, and NextEra.
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