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Is It Time To Reassess Atmos Energy (ATO) After Strong Multi Year Share Price Gains
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With Atmos Energy trading at a last close of US$181.03, you might be wondering whether the current price still offers value or if most of the opportunity has already been priced in.

The stock has been flat over the past 30 days, while the 1-year return stands at 23.7% and the 5-year return at 107.5%. This performance can influence how much risk or upside investors feel is left.

Recent coverage has focused on Atmos Energy as a regulated gas utility and how its role in US energy infrastructure shapes investor expectations. Sector commentary has also highlighted ongoing interest in essential service providers as a potential source of stability. Together, this backdrop helps frame why the market has been paying close attention to valuation.

Atmos Energy currently holds a value score of 3 out of 6. The rest of this article will walk through how different valuation methods assess the stock, before finishing with a more complete way to think about what that score really means for you as an investor.

Atmos Energy delivered 23.7% returns over the last year. See how this stacks up to the rest of the Gas Utilities industry.

Approach 1: Atmos Energy Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow, or DCF, model takes projected future cash flows and discounts them back to today to estimate what the entire business might be worth right now.

For Atmos Energy, the model used is a 2 Stage Free Cash Flow to Equity approach based on cash flow projections in $. The latest twelve month free cash flow stands at a loss of about $1.50b. Analyst input extends to 2028, where free cash flow is projected at $2,112m, with further annual figures out to 2035 extrapolated by Simply Wall St rather than directly forecast by analysts.

When all those projected cash flows are combined and discounted, the DCF model arrives at an estimated intrinsic value of about $914.25 per share. Compared with the recent share price of US$181.03, this implies the stock is 80.2% undervalued under these assumptions.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Atmos Energy is undervalued by 80.2%. Track this in your watchlist or portfolio, or discover 55 more high quality undervalued stocks.

ATO Discounted Cash Flow as at Mar 2026
ATO Discounted Cash Flow as at Mar 2026

Head to the Valuation section of our Company Report for more details on how we arrive at this Fair Value for Atmos Energy.

Approach 2: Atmos Energy Price vs Earnings

For profitable companies, the P/E ratio is a useful way to see how much you are paying for each dollar of earnings. It reflects what the market is willing to pay today in light of the company’s growth prospects and the risks investors perceive in those earnings.

Generally, faster growth and lower perceived risk can justify a higher P/E, while slower growth or higher risk often leads to a lower “normal” or “fair” P/E range. Therefore, it helps to compare Atmos Energy’s current P/E with relevant benchmarks rather than looking at the number in isolation.

Atmos Energy currently trades on a P/E of 23.97x, compared with the Gas Utilities industry average of 15.06x and a peer group average of 16.58x. Simply Wall St’s Fair Ratio for Atmos Energy is 24.88x, which is a proprietary estimate of what the P/E might be given factors such as earnings growth, industry, profit margins, market cap and risk profile. This Fair Ratio can be more tailored than a simple peer or industry comparison because it adjusts for those company specific characteristics. Atmos Energy’s actual P/E is slightly below the Fair Ratio, which indicates that the valuation is somewhat attractive on this measure.

Result: UNDERVALUED

NYSE:ATO P/E Ratio as at Mar 2026
NYSE:ATO P/E Ratio as at Mar 2026

P/E ratios tell one story, but what if the real opportunity lies elsewhere? Start investing in legacies, not executives. Discover our 20 top founder-led companies.

Upgrade Your Decision Making: Choose your Atmos Energy Narrative

Earlier it was mentioned that there is an even better way to understand valuation. Narratives are introduced as a simple story you build around Atmos Energy that links your view of its future revenue, earnings and margins to a financial forecast, a fair value, and finally a buy or sell decision, by comparing that fair value with the current price. All of this is done within an easy tool on Simply Wall St’s Community page that updates automatically when fresh news or earnings arrive. This means two investors can look at the same company and reach different yet coherent views. One narrative might lean toward the higher US$182.00 analyst price target by focusing on factors like customer growth, supportive regulation and long term infrastructure projects. Another might line up closer to the lower US$141.00 target by putting more weight on risks like rising capital and operating costs, regional concentration and long term electrification trends.

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

NYSE:ATO 1-Year Stock Price Chart
NYSE:ATO 1-Year Stock Price Chart

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.

Disclaimer:This article represents the opinion of the author only. It does not represent the opinion of Webull, nor should it be viewed as an indication that Webull either agrees with or confirms the truthfulness or accuracy of the information. It should not be considered as investment advice from Webull or anyone else, nor should it be used as the basis of any investment decision.
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