Vistra Corp. (VST) is an integrated electricity retailer and power generation company based in Irving, Texas. With a market cap of $70.8 billion, it operates across the U.S., producing and selling power wholesale, and also has retail operations (serving residential, commercial, and industrial customers) under various brands. Companies worth more than$10 billion are generally labeled as “large-cap” stocks, and Vistra fits this criterion perfectly. It dominates the market through its integrated generation ...