Is MasTec Stock a Strong Buy Despite Its Premium P/E Valuation?

MasTec (MTZ) shares have surged 72% over the past year, significantly outperforming its industry and the S&P 500, despite trading at a premium forward P/E of 24.62x. This strong performance and valuation are supported by a record $16.45 billion backlog, up 23% year-over-year, driven by robust demand across its communications, clean energy, and power delivery segments. The company further solidified its outlook by raising 2025 revenue guidance to $13.9-$14 billion and projecting a substantial ~60% increase in adjusted EPS, signaling strong visibility and sustained growth in critical infrastructure markets.

Analysis

MasTec, Inc. (MTZ) is demonstrating exceptional fundamental strength that appears to justify its premium valuation. The company's shares have surged 72% over the past year, significantly outperforming its industry (+57.8%) and peers, despite trading at a forward P/E of 24.62x, which is above the industry average of 21.25x and competitors like AECOM (22.17x) and Fluor (18.33x). The core driver of this performance is a record 18-month backlog which has grown 23.3% year-over-year to $16.45 billion, providing strong forward revenue visibility. This growth is broad-based, with record backlogs in Communications ($5 billion, +13% YoY) fueled by fiber and wireless rollouts, and Clean Energy ($4.9 billion, +11% sequentially) supported by renewable energy investments and favorable legislation. This operational momentum has led management to raise its 2025 guidance, now projecting revenues of $13.9-$14.0 billion and an adjusted EPS of $6.23-$6.44. This updated earnings forecast implies a substantial year-over-year growth of approximately 60% from the $3.95 reported in 2024, a rate that far outpaces the expected earnings growth for peers EMCOR (16.2%) and AECOM (15.9%), justifying analyst confidence and upward EPS estimate revisions for 2025 and 2026.

Key Decisions for Investors

• Investors should view MasTec's premium valuation in the context of its superior earnings growth, with projected 2025 EPS growth of nearly 60% and a record $16.45 billion backlog providing a strong basis for a continued bullish stance.
• It is crucial to monitor the company's ability to convert its record backlog into revenue and maintain margins, particularly within the high-growth Communications and Clean Energy segments, as execution is key to sustaining the current valuation.
• Given MTZ's significant outperformance and stronger growth outlook relative to peers, investors seeking exposure to the infrastructure sector may consider overweighting MTZ to capitalize on secular tailwinds in broadband, grid modernization, and renewable energy.