Valued at $41.5 billion by market cap, Entergy Corporation (ETR) is a Louisiana-based integrated energy company engaged in the generation, transmission, and distribution of electricity. It primarily serves customers in Arkansas, Louisiana, Mississippi, and Texas through its utility subsidiaries and operates a portfolio of nuclear, natural gas, and renewable power plants. Companies worth$10 billion or more are generally described as "large-cap stocks." Entergy fits right into that category, with its marke ...