STRL vs. TPC: Which Infrastructure Stock Has Stronger Growth?

Sterling Infrastructure (STRL) and Tutor Perini (TPC) are significantly benefiting from the robust infrastructure spending cycle, fueled by federal initiatives like the IIJA, with both companies reporting substantial growth in backlogs and project pipelines despite inflationary headwinds. STRL's Q1 2025 E-Infrastructure segment revenue surged 18% with operating income up 61%, contributing to a $2.1 billion total backlog, while TPC secured $2 billion in new awards, propelling its backlog to a record $19.4 billion. Although STRL's stock gained 43.5% year-to-date with a projected 41.2% EPS growth for 2025, TPC's shares skyrocketed 102.4% with an anticipated 155.9% EPS increase, positioning TPC as the more compelling investment due to its superior momentum and attractive valuation.

Analysis

Sterling Infrastructure (STRL) and Tutor Perini (TPC) are both capitalizing on a strong infrastructure spending cycle, largely fueled by government programs like the Infrastructure Investment and Jobs Act (IIJA). Sterling is executing a strategic pivot towards higher-margin segments, demonstrated by its E-Infrastructure division, which saw first-quarter revenue grow 18% year-over-year with operating income up 61% and margins exceeding 23%. This focus has lifted its total backlog to $2.1 billion and improved the gross margin on that backlog by 100 basis points to 17.7%. In comparison, Tutor Perini is focused on securing large-scale projects, which drove its backlog to a record $19.4 billion in the first quarter of 2025, nearly doubling from the prior year. While both companies face headwinds from inflation and execution risk, TPC exhibits more significant momentum and growth potential based on current metrics. TPC's stock has surged 102.4% year-to-date, far outpacing STRL's 43.5% gain, and it trades at a more attractive forward P/E ratio. Furthermore, TPC's projected 2025 EPS growth is 155.9%, substantially higher than STRL's projected 41.2% growth, positioning it as a more dynamic growth story within the sector.

Key Decisions for Investors

• Given Tutor Perini's superior share price momentum, a more attractive forward P/E valuation, and a significantly higher projected 2025 EPS growth of 155.9%, it appears to be the more compelling investment for growth-oriented investors in the current infrastructure cycle.
• Investors with a preference for margin quality and exposure to the high-demand data center and semiconductor sectors should evaluate Sterling Infrastructure, noting its successful strategy of focusing on high-margin E-Infrastructure projects and achieving a 100 basis point improvement in its backlog gross margin.
• For Tutor Perini, the primary focus should be on its ability to convert its record $19.4 billion backlog into profitable earnings, as successful project execution is critical to sustaining its recent stock performance and meeting aggressive growth estimates.
• Despite the bullish outlook for both companies, it is crucial to monitor for potential margin erosion due to persistent cost inflation and project execution risks, as disciplined operational management remains key to realizing the value of their substantial project pipelines.