Valued at $40.3 billion by market cap, New Orleans, Louisiana-based Entergy Corporation (ETR) engages in the production and retail distribution of electricity in the United States. The company’s power plants have approximately 24,000 megawatts of electric generating capacity. Companies worth$10 billion or more are generally described as "large-cap stocks." Entergy fits right into that category, with its market cap exceeding this threshold, reflecting its substantial size and influence in the regulated el ...