• If you are wondering whether Vistra's share price still reflects fair value, you are not alone. This article will walk through what the current price might be implying about the business.
• The stock last closed at US$164.40, after returns of 1.7% over the past week, 9.9% over the past month, a small 0.5% decline year to date, and 44.5% over the past year, with a very large gain over the past three and five years.
• These moves have kept Vistra on many investors' watchlists, with market interest supported by ongoing discussion around its role in the US utilities sector and its position in the current power market. While short term headlines come and go, the share price path you see today has been shaped by how investors collectively view its future cash flows and risk profile.
• Simply Wall St currently assigns Vistra a valuation score of 2 out of 6, based on how many of its valuation checks suggest the shares may be undervalued. Next, we will break down what different valuation approaches say about that score and then finish with a broader way to think about what "fair value" really means for this stock.

Vistra scores just 2/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: Vistra Discounted Cash Flow (DCF) Analysis

A DCF model takes estimates of the cash a business might generate in the future and discounts those cash flows back to today, to arrive at an estimated value per share.

For Vistra, Simply Wall St uses a 2 Stage Free Cash Flow to Equity model based on cash flow projections. The latest twelve month free cash flow is about $1.06b. Analyst inputs and internal estimates are used to project free cash flow out to 2035, with forecasts such as $3.74b in 2026 and $4.65b in 2027, and an extrapolated figure of $6.30b for 2030. Amounts beyond the explicit analyst period are extrapolated by Simply Wall St rather than sourced directly from analyst reports.

After discounting these projected cash flows back to today, the model arrives at an estimated intrinsic value of about $374.71 per share. Compared with the recent share price of US$164.40, this implies an intrinsic discount of roughly 56.1%, which indicates the stock screens as materially undervalued on this DCF view.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Vistra is undervalued by 56.1%. Track this in your watchlist or portfolio, or discover 48 more high quality undervalued stocks.

Approach 2: Vistra Price vs Earnings

For a profitable company like Vistra, the P/E ratio is a practical way to think about what you are paying for each dollar of current earnings. It captures, in a single number, how the market is weighing those earnings against other opportunities.

What counts as a reasonable P/E usually reflects how the market views a company’s growth potential and risk profile. Higher expected growth or lower perceived risk can justify a higher multiple, while slower growth or higher uncertainty often go with a lower one.

Vistra currently trades on a P/E of 73.66x. That is well above the Renewable Energy industry average of about 16.32x and also above the peer group average of 16.87x. Simply Wall St’s Fair Ratio for Vistra is 40.49x, which is its proprietary view of what a suitable P/E might be after considering factors like earnings growth, profit margins, industry, market cap and company specific risks.

Because the Fair Ratio builds in these fundamentals rather than relying only on simple peer or industry comparisons, it can give a more tailored anchor for valuation. On this measure, Vistra’s current P/E of 73.66x is materially higher than the Fair Ratio of 40.49x, which points to the shares screening as overvalued on this metric.

Result: OVERVALUED

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Upgrade Your Decision Making: Choose your Vistra Narrative

Earlier we mentioned that there is an even better way to understand valuation. Let us introduce you to Narratives, which are simply the stories investors tell about a company and then connect to clear numbers like expected revenue, earnings, margins and a personal view of fair value.

On Simply Wall St’s Community page, Narratives help you link Vistra’s story to a financial forecast and then to a fair value so you can quickly compare that fair value to the current share price and decide whether the setup looks attractive or stretched for you.

Because Narratives on the platform are updated when new data comes in, such as earnings or news about long term Meta nuclear contracts in PJM, you can see how different views evolve without rebuilding a model from scratch.

For Vistra, one Narrative currently anchors on a Fair Value of about US$293 per share, while another sits closer to US$169. This shows how two investors looking at the same company can reasonably land on very different conclusions about risk, growth and what they think the shares are worth today.

Do you think there's more to the story for Vistra? Head over to our Community to see what others are saying!

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.