PPL Corporation (PPL), headquartered in Allentown, Pennsylvania, provides electricity and natural gas to approximately 3.6 million customers. Valued at $26.6 billion by market cap, the company generates electricity from power plants, as well as markets wholesale and retail energy and natural gas. It also delivers natural gas to customers in Kentucky and Rhode Island and generates electricity from power plants in Kentucky. Companies worth$10 billion or more are generally described as “large-cap stocks.” P ...