Vistra (VST) is back in focus after first quarter 2026 results showed sales of US$5,640 million and net income of US$1,029 million, alongside an update on its multi year share repurchase program.

Despite the strong first quarter update and continued progress on its buyback program, Vistra’s share price has eased, with the 30 day share price return down 17.6% and the 1 year total shareholder return down 13.8%, while the 3 year total shareholder return is very large at around 5x.

If Vistra’s recent moves have you thinking about where the next opportunities might be in power and grid infrastructure, it could be worth scanning 35 power grid technology and infrastructure stocks

So with a multi year buyback, strong recent earnings and the stock trading below some valuation estimates, should you view Vistra as undervalued after the pullback, or is the market already pricing in future growth?

Most Popular Narrative: 42.5% Undervalued

Vistra's most followed narrative places fair value at $234.26, well above the last close at $134.71. This frames the recent pullback in a very different light.

Structural increases in electricity demand driven by AI, data centers, and U.S. manufacturing are expected to significantly boost the utilization of Vistra's generation assets, supporting sustained revenue and potential margin expansion as higher fixed cost absorption improves profitability.

Want to see what has to happen for that valuation to stack up? The narrative leans on faster top line expansion, sharply higher margins, and a richer future earnings multiple.

Result: Fair Value of $234.26 (UNDERVALUED)

However, you also need to weigh up risks such as higher debt from acquisitions and evolving coal and gas regulation, which could pressure earnings and sentiment.

Next Steps

With mixed signals on value and sentiment, the real question is how you view the balance between upside and risk. To explore this further, take a closer look at the full breakdown of 2 key rewards and 1 important warning sign

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.