With a market cap of $30.3 billion, Ameren Corporation (AEE) operates through segments including Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. It provides rate-regulated electric and natural gas generation, transmission, and distribution services to residential, commercial, and industrial customers.
Companies valued at $10 billion or more are generally considered “large-cap” stocks, and Ameren fits this criterion perfectly. The company produces energy from a mix of coal, nuclear, natural gas, and renewable sources such as hydro, wind, methane gas, and solar.