Is It Too Late To Consider MasTec (MTZ) After Its 142% One Year Surge?
- If you are wondering whether MasTec's share price still makes sense after its strong run, a key question is whether the current market price aligns with the underlying value of the business.
- MasTec's stock recently closed at US$300.58, with returns of 3.6% over 7 days, 13.8% over 30 days, 32.0% year to date and 142.3% over 1 year, along with a 228.6% return over 3 years and 233.5% over 5 years.
- Recent attention on MasTec has been driven by ongoing interest in its role within capital goods and infrastructure-related projects. This context helps shape how investors think about its long-term prospects and risk profile, and is useful background when assessing whether the current share price reflects realistic expectations or stretches them.
- Despite this performance, MasTec currently has a valuation score of 0 out of 6, meaning it does not screen as undervalued on any of these basic checks. The following sections walk through different valuation methods and then conclude with a more complete way to think about what the stock might be worth.
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 takes estimates of a company’s future cash flows and discounts them back to today’s dollars, aiming to show what those cash flows might be worth right now.
For MasTec, the latest twelve month Free Cash Flow stands at about $322.8 million. Analysts have provided forecasts that extend into the next decade, with Simply Wall St extrapolating beyond the initial analyst horizon. In this framework, projected Free Cash Flow reaches $1,327 million in 2030, with interim annual estimates between 2026 and 2035 all sitting in the hundreds of millions of dollars.
Using a 2 Stage Free Cash Flow to Equity model based on these projections, the DCF output points to an estimated intrinsic value of about $293.53 per share. Against the recent share price of $300.58, this implies the stock is roughly 2.4% overvalued, which is a relatively small gap and well within the sort of margin of error common for valuation models.
Result: ABOUT RIGHT
MasTec is fairly valued according to our Discounted Cash Flow (DCF), but this can change at a moment's notice. Track the value in your watchlist or portfolio and be alerted on when to act.
Approach 2: MasTec Price vs Earnings
For profitable companies like MasTec, the P/E ratio is a useful shorthand for how much investors are paying for each dollar of earnings, which is why it tends to be the go to multiple here.
What counts as a “normal” P/E depends on how the market views a company’s growth potential and risk. Higher expected growth and lower perceived risk can support a higher P/E, while slower growth or higher risk usually points to a lower, more conservative multiple.
MasTec currently trades on a P/E of 58.65x. That sits above both the Construction industry average of 31.91x and the peer group average of 30.67x, so on simple comparisons the shares look expensive. Simply Wall St’s Fair Ratio metric, which estimates an appropriate P/E given MasTec’s earnings growth profile, margins, industry, market cap and risk factors, sits at 39.54x.
The Fair Ratio is more tailored than a basic peer or industry comparison because it adjusts for MasTec specific characteristics, rather than assuming all companies in the group deserve similar multiples. Comparing 58.65x to the Fair Ratio of 39.54x suggests the current valuation is stretched relative to what those fundamentals would typically support.
Result: OVERVALUED
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 MasTec Narrative
Earlier there was mention of an even better way to think about valuation. Narratives take the raw numbers you have in mind for MasTec, such as future revenue, earnings, margins and a fair value per share, and wrap them in a clear story that explains why those assumptions make sense to you. They then link that story to a forecast and a fair value that you can compare directly to the current share price to help decide whether you see MasTec as priced attractively or not right now.
On Simply Wall St, Narratives are available on the Community page and are used by millions of investors as an accessible tool. Rather than wrestling with spreadsheets, you pick or create a MasTec Narrative that reflects your view, and the platform handles the valuation maths for you while updating the numbers when new earnings or news arrives.
For MasTec, one investor Narrative might look like the March 2026 view that uses a fair value of US$336.00 based on a 40x forward P/E and projected FY2027 Adjusted EPS of US$8.40. Another might be closer to the more cautious bearish framework that anchors on a fair value around US$138.57. Seeing those side by side shows how different assumptions about backlog, margins and earnings can lead to very different conclusions about whether the current price feels rich or reasonable to you.
For MasTec however we will make it really easy for you with previews of two leading MasTec Narratives:
These give you a clear snapshot of what a bullish and a bearish valuation story look like side by side, so you can see which assumptions feel closer to your own view.
Fair value: US$336.00
Upside vs recent price: 10.6% potential undervaluation
Revenue growth assumption: 12.27%
- Views MasTec as a core infrastructure builder tied to AI data centers, grid modernization and clean energy storage, supported by a US$19.0b 18 month backlog and record FY2025 revenue of US$14.3b.
- Expects margin expansion helped by higher value turnkey data center work, cross selling across segments and a shift away from lower margin industrial close outs.
- Sees fair value at US$336.00 based on a 40x forward P/E and projected FY2027 Adjusted EPS of US$8.40, with execution risks around large projects, labor availability, rates and permitting clearly flagged.
Fair value: US$178.22
Downside vs recent price: 40.7% potential overvaluation
Revenue growth assumption: 8.52%
- Frames MasTec through a more cautious lens that leans on the lower end of analyst targets, with concern that current pricing already bakes in strong revenue and EBITDA guidance.
- Highlights risks around project timing, possible pipeline revenue drop after large project completions, political uncertainty, backlog lumpiness and reliance on non pipeline segments to carry margins.
- Arrives at a fair value of about US$178.22 based on slower long term growth, modest margin improvement and a lower forward P/E multiple, implying the share price could be running ahead of these assumptions.
If you want to see how other investors are weighing up similar trade offs between growth, margins and risk, you can review the full range of MasTec Community Narratives next and stress test which story lines match your expectations for the business.
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.
Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com