Vistra Corp. (NYSE:VST) is included among the 14 Best US Stocks to Buy for Long Term. Overweight Call on Vistra (VST) From KeyBanc Highlights Scale and Cash Flow Strength On November 25, KeyBanc initiated its coverage on Vistra Corp. (NYSE:VST) with an Overweight rating and a $217 price target. The firm appreciated the company’s scale, “diversified” generation mix, and “strong” cash flow. According to the analyst, these aspects offer resilience and growth “optionality in a tightening U.S. power market.” ...