• If you are trying to figure out whether MasTec at US$285.26 is still reasonably priced or starting to look stretched, you are in the right place.
• The stock has posted returns of 3.5% over the last 7 days, 14.8% over 30 days, 25.3% year to date, 124.9% over 1 year and 178.6% over 3 years, with a 5 year return of 228.9%. This naturally raises questions about what is already baked into the price.
• Recent news coverage around MasTec has focused on its role in capital goods and infrastructure related projects, which has helped keep attention on the stock as these themes stay in focus for investors. This context is important when you think about whether the recent share price performance lines up with the underlying business and sector sentiment.
• Despite that backdrop, MasTec currently has a valuation score of 0/6. In the sections ahead we will look at what different valuation methods say about the stock today and then finish with a more holistic way to think about its value.

MasTec scores just 0/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: MasTec Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model estimates what a company could be worth by projecting its future cash flows and then discounting those cash flows back to today in $ terms.

For MasTec, the model used is a 2 Stage Free Cash Flow to Equity approach. The latest twelve month free cash flow is about $435.8 million. Analysts provide free cash flow estimates out to 2029, with Simply Wall St extrapolating figures beyond that. On this basis, projected free cash flow for 2030 is $1.123b, with interim projected values between 2026 and 2035 all discounted back to today.

Aggregating these discounted cash flows gives an estimated intrinsic value of about $239.43 per share. Compared with the current share price of about $285.26, the DCF output suggests MasTec is around 19.1% above this estimate, which indicates the shares may be overvalued on this specific cash flow model.

Result: OVERVALUED

Our Discounted Cash Flow (DCF) analysis suggests MasTec may be overvalued by 19.1%. Discover 53 high quality undervalued stocks or create your own screener to find better value opportunities.

Approach 2: MasTec Price vs Earnings

For profitable companies like MasTec, the P/E ratio is a useful way to relate what you are paying for the stock to the earnings the business is currently generating. It gives you a quick sense of how many dollars investors are paying today for each dollar of earnings.

What counts as a normal or fair P/E depends on how the market views the company’s growth prospects and risk profile. Higher expected growth or lower perceived risk can justify a higher P/E, while slower expected growth or higher risk usually means a lower one.

MasTec currently trades on a P/E of 66.90x. That is above both the construction industry average P/E of 35.85x and the peer group average of 34.79x. Simply Wall St also calculates a proprietary Fair Ratio for MasTec of 38.98x, which reflects factors such as earnings growth, industry, profit margins, market cap and risk characteristics. This Fair Ratio can be more informative than a simple comparison to peers or the industry, because it adjusts for the specific profile of the company rather than treating all firms as identical.

Comparing MasTec’s current P/E of 66.90x with the Fair Ratio of 38.98x suggests the shares are trading above this customized valuation yardstick.

Result: OVERVALUED

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Upgrade Your Decision Making: Choose your MasTec Narrative

Earlier we mentioned that there is an even better way to understand valuation, so let us introduce Narratives. Narratives let you attach a clear story about MasTec to explicit numbers like your own fair value, revenue, earnings and margin assumptions. This way the company’s story links directly to a forecast and then to a fair value that you can compare with today’s share price. All of this is available within an easy tool on Simply Wall St’s Community page that updates as fresh news or earnings arrive. It can show, for example, one investor building a cautious MasTec view closer to the bearish US$128 price target, while another leans toward the optimistic US$214 target, each with a transparent path for deciding whether the current US$285.26 price looks high, low or roughly in line with their expectations.

For MasTec however we will make it really easy for you with previews of two leading MasTec Narratives:

Fair value in this bullish narrative: US$300.00 per share

Upside versus the last close of US$285.26: about 4.9% below this fair value level

Revenue growth assumption: 13.32%

• Clean energy, grid projects and power delivery work are expected to be key supports for higher margins and stronger free cash flow.
• Analysts in this camp model higher earnings by 2028 with profit margins improving as MasTec executes large energy transition and communications contracts.
• The bullish fair value of US$300.00 reflects higher assumed revenue growth, slightly better profit margins and a lower future P/E multiple than today.

Fair value in this cautious narrative: US$205.49 per share

Downside versus the last close of US$285.26: about 38.8% above this fair value level

Revenue growth assumption: 9.81%

• This view centers on the risk that future margin expansion in Communications and Pipeline does not fully come through, which would limit earnings delivery.
• Completion of large pipeline projects, project timing, and political uncertainty around energy and infrastructure spending are flagged as key swing factors.
• The fair value of US$205.49 uses more conservative assumptions for revenue mix, profit margins and the P/E multiple that investors might be willing to pay.

If you want to see how these narratives are built number by number, and how other investors are framing MasTec’s risk and reward, Curious how numbers become stories that shape markets? Explore Community Narratives.

Do you think there's more to the story for MasTec? 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.