Is MTZ a Buy? What to Consider in 2026
Short answer
The bull case for MasTec (MTZ) rests on Record backlog and demand acceleration: MasTec's 18-month backlog reached roughly $20.3 billion as of March 2026, up about $4.4 billion year over year, led by strong growth in Clean Energy and Infrastructure. Revenue (2025 FY) is ~$14.3B. If you believe that thesis holds, the real questions become position sizing and overlap, not timing. The main risk to that view: MasTec is cyclical and project-based, so revenue and margins can swing with customer capital budgets, permitting delays, weather, and the timing of large contracts. Whether MTZ is a buy comes down to whether you believe the thesis. This is informational, not a recommendation, and Walnut is not an investment adviser.
MasTec (NYSE: MTZ) is a Coral Gables, Florida based engineering and construction firm that builds and maintains large-scale infrastructure across four segments: Communications (wireless and wireline/fiber), Power Delivery (utility transmission and distribution), Pipeline Infrastructure (natural gas installation and maintenance), and Clean Energy and Infrastructure (renewables engineering, construction, and heavy civil). The company works for utilities, telecom carriers, energy operators, and government customers, and grows both organically and through acquisitions such as the roughly $1.65 billion planned Superior Group deal. The investment picture is a cyclical growth story tied to US infrastructure spending. Revenue reached roughly $14.3 billion in 2025 and demand is accelerating into 2026, driven by grid upgrades, data-center power needs, and renewable buildout, with an 18-month backlog at a record level above $20 billion. That momentum has pushed the stock to a premium valuation, so returns hinge on the company converting backlog into margin-accretive revenue while managing project execution, weather, and customer capital-spending cycles.
What's the case for buying MTZ?
1. Record backlog and demand acceleration
MasTec's 18-month backlog reached roughly $20.3 billion as of March 2026, up about $4.4 billion year over year, led by strong growth in Clean Energy and Infrastructure. Management guided 2026 revenue to about $17.5 billion, implying roughly 22% growth. A rising backlog gives visibility into future work, though bookings can be lumpy quarter to quarter.
2. Grid, data-center, and electrification tailwinds
Power Delivery and Clean Energy benefit from utilities upgrading aging transmission and distribution networks and from surging electricity demand tied to data centers and AI. These are multi-year spending programs rather than one-off projects. MasTec's scale and multi-segment footprint let it bid on larger, more complex work.
3. Margin recovery and earnings leverage
Adjusted diluted EPS climbed to roughly $6.55 in 2025 and guidance for 2026 was raised toward $8.79, with adjusted EBITDA targeted around $1.5 billion. As underperforming project cohorts roll off and higher-margin utility and clean-energy work scales, incremental margins can expand meaningfully. Execution on large fixed-price contracts is the swing factor.
4. Pipeline segment rebound
The Pipeline Infrastructure segment posted sharp growth into 2026 (roughly 91% year over year in Q1) as natural gas projects picked up. This segment is historically the most volatile and project-concentrated, but a strong cycle adds outsized revenue and profit when large jobs are active.
What are the risks to MTZ?
MasTec is cyclical and project-based, so revenue and margins can swing with customer capital budgets, permitting delays, weather, and the timing of large contracts. The stock trades at a high earnings multiple (trailing P/E in the 60s), leaving little cushion if growth or margins disappoint. The company carries debt and pursues sizable acquisitions such as Superior Group, adding integration and balance-sheet risk. Fixed-price contracts expose it to cost overruns, and a handful of large customers and projects can concentrate outcomes. Shifts in energy, telecom, or renewable-subsidy policy could also alter demand across its segments.
How is MTZ valued? (as of JULY 2026)
Snapshot for MTZ as of July 2026, sourced from Yahoo Finance and may be delayed. Valuation figures move with price and earnings; verify the current numbers with your broker before deciding.
- Revenue (2025 FY): ~$14.3B
- Revenue (TTM): ~$15B
- 2026 revenue guidance: ~$17.5B
- Adjusted diluted EPS (2025): ~$6.55
- 18-month backlog: ~$20.3B
- Market cap: ~$28B
MasTec is a large-cap infrastructure contractor trading at a premium multiple, with a trailing P/E in the low-to-mid 60s reflecting strong expected earnings growth. Management raised 2026 guidance after a record Q1, targeting roughly $17.5 billion in revenue and about $8.79 in adjusted EPS. The valuation prices in continued backlog conversion, so results relative to that growth path matter more than the absolute multiple.
How do you decide if MTZ is a buy?
Rather than asking whether MTZ is a buy in the abstract, it tends to help to answer four questions:
- Thesis: do you believe the case above, and is it still true today?
- Time horizon: a single stock can be volatile, so a longer horizon absorbs more of the swings.
- Position sizing: a thesis can be right and the sizing still wrong; decide how much of your portfolio one name should be.
- Overlap: check whether you already hold MTZ indirectly through an index or sector ETF before adding more.
For the full picture, see the MTZ stock guide (what the company does, the ETFs that hold it, similar stocks, and the themes it fits). In Walnut you can ask its AI about MTZ against your real portfolio and see your actual exposure before deciding.
The bottom line on MTZ
The bottom line: MasTec's story right now is Record backlog and demand acceleration, with revenue (2025 fy) at ~$14.3B. If you believe that narrative continues, the call is about sizing MTZ sensibly and checking overlap with what you own; if you doubt it (the risk: masTec is cyclical and project-based, so revenue and margins can swing with customer capital budgets, permitting delays, weather, and the timing of large contracts.), it is not for you. Decide from the thesis, not the ticker. Walnut is not an investment adviser.
Build a basket around MTZ with Walnut
Use MasTec as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
Is MTZ a good stock to buy right now?
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The case for MasTec right now is Record backlog and demand acceleration, with revenue (2025 fy) at ~$14.3B. If you believe that thesis holds, MTZ is a way to own it and the real questions are sizing and overlap, not timing; the main risk to that view is masTec is cyclical and project-based, so revenue and margins can swing with customer capital budgets, permitting delays, weather, and the timing of large contracts. So it comes down to whether you believe the thesis. Walnut is not an investment adviser and this is not a recommendation.
What does MasTec do?
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MasTec (NYSE: MTZ) is a Coral Gables, Florida based engineering and construction firm that builds and maintains large-scale infrastructure across four segments: Communications (wir
What are the main risks of MTZ?
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MasTec is cyclical and project-based, so revenue and margins can swing with customer capital budgets, permitting delays, weather, and the timing of large contracts. The stock trades at a high earnings multiple (trailing P/E in the 60s), leaving little cushion if growth or margins disappoint. The company carries debt and pursues sizable acquisitions such as Superior Group, adding integration and balance-sheet risk. Fixed-price contracts expose it to cost overruns, and a handful of large customers and projects can concentrate outcomes. Shifts in energy, telecom, or renewable-subsidy policy could also alter demand across its segments.
What does MasTec do?
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MasTec is a US engineering and construction company that builds and maintains infrastructure across four segments: communications and fiber, power delivery (transmission and distribution), natural gas pipelines, and clean energy and heavy civil projects. Its customers are utilities, telecom carriers, and energy companies.
Is MasTec profitable?
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Yes. MasTec reported GAAP net income of roughly $422 million in 2025, more than double the prior year, with adjusted diluted EPS around $6.55. Profitability improved as higher-margin utility and clean-energy work scaled and weaker project cohorts rolled off.
How fast is MasTec growing?
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Revenue grew about 16% in 2025 to roughly $14.3 billion, and Q1 2026 revenue jumped about 34% year over year to $3.8 billion. Management guided full-year 2026 revenue to about $17.5 billion, or roughly 22% growth, supported by a record backlog.
What is MasTec's backlog?
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MasTec's 18-month backlog reached a record of roughly $20.3 billion as of March 2026, up about $4.4 billion from a year earlier. The largest gains came from the Clean Energy and Infrastructure segment. Backlog provides visibility into future revenue but can shift with contract timing.
Walnut is informational and is not an investment adviser. This page is educational and not a recommendation to buy or sell MTZ; figures are approximate and dated, and your own situation, time horizon, and risk tolerance should drive any decision. Verify current data before investing.