Key Takeaways Shares in electric utility Vistra, the biggest gainer in the S&P 500 this year, hit another record high in early trading Thursday before losing ground. Analysts say that the utility's nuclear assets place it in a position to capitalize on the significant energy requirements needed to power AI infrastructure, such as data centers. Investors should monitor key lower price levels on Vistra's chart around $107, $95, and $76. The measuring principle, which calculates the distance between the symmet ...