Vistra Corp. (VST) shares rallied 16.3% in the last trading session to close at $107.88. This move can be attributable to notable volume with a higher number of shares being traded than in a typical session. This compares to the stock's 11.3% gain over the past four weeks. Vistra's ability to produce a high volume of emission-free electricity from its solar, natural gas, nuclear and other alternative energy sources is the primary contributor to its performance. Strong retail business and rising demand from ...