- If you are wondering whether MasTec's share price still offers value after a strong run, this article will help you frame that question using clear valuation tools.
- MasTec closed at US$357.37, with returns of 6.3% over 7 days, 19.1% over 30 days, 57.0% year to date, 210.6% over 1 year, 297.7% over 3 years, and 262.6% over 5 years. These figures naturally raise questions about what is already priced in.
- Recent coverage has focused on MasTec's position in construction and infrastructure projects, and on how contract wins and project pipeline updates may be shaping investor expectations. This context helps explain why the stock's long term returns are drawing extra attention from both existing and potential shareholders.
- Despite this performance, MasTec currently scores 0 out of 6 on a set of valuation checks. The sections that follow will walk through traditional valuation approaches and then finish with a broader way of thinking about whether that score tells the full story.
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 business might be worth by projecting the cash it could generate in the future and then discounting those cash flows back to today using a required return.
For MasTec, the model used is a 2 Stage Free Cash Flow to Equity approach based on cash flow projections. The latest twelve month free cash flow is about $322.8 million. Analyst and extrapolated estimates project free cash flow stepping up to $790.99 million in 2026 and $1,327 million in 2030, with further values out to 2035 provided by Simply Wall St as extrapolations rather than direct analyst forecasts.
When all of these projected cash flows are discounted back to today, the model arrives at an estimated intrinsic value of about $294.81 per share. Compared with the current share price of $357.37, the DCF output suggests MasTec trades at a premium, with the intrinsic discount figure indicating it is roughly 21.2% overvalued on this cash flow view alone.
Result: OVERVALUED
Our Discounted Cash Flow (DCF) analysis suggests MasTec may be overvalued by 21.2%. Discover 62 high quality undervalued stocks or create your own screener to find better value opportunities.
Approach 2: MasTec Price vs Earnings
For a profitable company like MasTec, the P/E ratio is a straightforward way to see how much you are paying for each dollar of earnings. In general, higher growth expectations and lower perceived risk can support a higher P/E, while slower growth and higher risk usually call for a lower, more cautious multiple.
MasTec currently trades on a P/E of 69.73x. That is well above the Construction industry average of about 35.93x and above the peer group average of 33.55x, so the market is putting a higher price tag on its earnings than on many peers.
Simply Wall St’s Fair Ratio for MasTec is 34.97x. This is a proprietary estimate of what a “normal” P/E might be for the company, based on factors such as its earnings growth profile, industry, profit margins, market cap and risk characteristics. Because it adjusts for these company specific drivers, the Fair Ratio can be more informative than a simple comparison with industry or peer averages.
With MasTec’s current P/E of 69.73x sitting well above the Fair Ratio of 34.97x, the multiple-based view points to the shares trading at a premium.
Result: OVERVALUED
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Upgrade Your Decision Making: Choose your MasTec Narrative
Earlier it was mentioned that there is an even better way to understand valuation. Meet Narratives, where you turn MasTec’s numbers into a clear story by linking your view of its projects, margins and earnings to a forecast and a Fair Value that you can compare with the current price on Simply Wall St’s Community page. This page is used by millions of investors and updates automatically when fresh news or earnings arrive.
For MasTec, one investor might build a bullish Narrative that lines up with a Fair Value around US$400 based on assumptions about stronger revenue growth, higher profit margins, a future P/E near 36x and a large project backlog across data centers, renewables, power delivery and pipelines. Another investor might build a more cautious Narrative closer to US$138 to US$205 that assumes slower growth, lower margins and a future P/E around the mid 20x range. The platform lets you see these stories side by side so you can decide which one feels closest to your own view.
For MasTec however we will make it really easy for you with previews of two leading MasTec Narratives:
Fair Value: US$400.00
Implied discount to this Fair Value: about 10.7% overvalued versus the narrative fair value.
Revenue growth assumption: 16.63% per year
- Focuses on record backlog across data centers, renewables, power delivery and communications as a driver of higher earnings visibility and margin expansion.
- Builds in rising profit margins, higher earnings by 2029 and a future P/E in the mid 30s, using an 8.66% discount rate to reach a Fair Value of US$400.
- Flags risks around fossil fuel exposure, project complexity, integration of acquisitions, technology disruption and ESG regulation that could pressure revenue and profitability.
Fair Value: US$336.32
Implied premium to this Fair Value: about 6.3% overvalued versus the narrative fair value.
Revenue growth assumption: 12.34% per year
- Centres on sector tailwinds, backlog and policy support across grid, data center and renewable projects, but assumes more moderate revenue growth than the bullish view.
- Builds a path to higher earnings with margin improvement and a future P/E just above 38x, using an 8.66% discount rate to reach a Fair Value of about US$336.
- Highlights execution, customer concentration, policy shifts, labour constraints and large project risks that could weigh on margins and make current expectations hard to meet.
These narratives bracket a wide valuation range. Use them as structured reference points and adjust the revenue growth, margin and P/E assumptions until they line up with your own expectations for MasTec.
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.
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