Sterling vs. MasTec: Which Construction Stock Looks Stronger Now?

Core Insights - Ongoing public and private investment is driving demand in the U.S. infrastructure construction sector, with significant activity in transportation, utilities, energy, and data centers [1] - Sterling Infrastructure (STRL) and MasTec, Inc. (MTZ) are well-positioned contractors benefiting from strong project activity and customer demand [1][2] Company Overview: Sterling Infrastructure (STRL) - STRL focuses on higher-margin site development and mission-critical projects, particularly in E-Infrastructure, which is driven by data center and industrial work [2][4] - The E-Infrastructure segment is the primary growth driver, with revenues from data centers increasing over 125% year-over-year in Q3 2025 [5] - STRL reported a backlog of $2.6 billion in Q3 2025, a 64% increase year-over-year, providing visibility through 2026 [7] Company Overview: MasTec, Inc. (MTZ) - MTZ benefits from diversified demand across communications, clean energy, power delivery, and pipeline infrastructure [8][10] - The company reported a record backlog of $16.78 billion as of Q3 2025, reflecting a 21.1% year-over-year increase [12] - MTZ's Power Delivery segment revenues increased by 16.8% year-over-year, driven by investments in transmission and distribution upgrades [10] Financial Performance and Valuation - STRL's earnings estimates for 2026 remain unchanged at $11.95 per share, indicating a 14.6% expected growth year-over-year [17] - MTZ's earnings estimates for 2026 also remain unchanged at $8.20 per share, indicating a higher expected growth of 28.3% year-over-year [19] - STRL is currently trading at a discount compared to MTZ on a forward 12-month price-to-earnings (P/E) ratio basis [15] Investment Outlook - Both companies are positioned to benefit from sustained U.S. infrastructure spending, but STRL shows stronger momentum in mission-critical projects and higher-margin work [20] - STRL's recent share price performance and discounted valuation suggest it may be the more compelling investment at this time compared to MTZ [20]