Why AECOM’s latest guidance move matters for investors

AECOM (ACM) recently lifted its full year 2026 earnings guidance after first quarter results came in ahead of management expectations, supported by net service revenue growth and a strong project pipeline.

The updated outlook sits alongside fresh contract wins, including detailed design work on Sydney Metro West and a global partnership with TomTom. This provides investors with more company specific data points to weigh against AECOM’s recent share performance.

Those guidance comments and contract wins come after a mixed stretch for the stock, with a 10.85% 7 day share price return contrasting with a 5.74% 90 day share price decline and a 75.83% five year total shareholder return, suggesting longer term holders have still seen solid gains.

If this update has you thinking about where infrastructure related themes could lead next, it might be a good moment to scan our screener of 23 power grid technology and infrastructure stocks as another way to look at grid and transport build out opportunities.

With AECOM trading at $97.89, sitting on a 1 year total return of 1.40% and a 5 year total return of 75.83%, along with raised 2026 guidance and recent contract wins, is there still a buying opportunity here or is future growth already priced in?

Most Popular Narrative: 22.5% Undervalued

Compared with AECOM's last close at $97.89, the most followed narrative points to a fair value of $126.33, implying meaningful upside based on long term earnings and cash flow assumptions.

Accelerating global and U.S. government backed infrastructure spending, especially in transportation, water, energy, and data centers, provides multi year revenue visibility and a record backlog that should support top line growth and backlog driven earnings expansion.

Intensifying investment and client demand for climate resilience, sustainability, and energy transition projects positions AECOM to win higher margin advisory and environmental contracts, supporting margin expansion and higher average contract values.

Want to see what sits behind that fair value gap? The narrative leans heavily on steady revenue growth, firmer margins, and a future earnings multiple below many construction peers. Curious how those pieces fit together over the next few years? The full breakdown sets out the earnings path and valuation math in detail.

Result: Fair Value of $126.33 (UNDERVALUED)

However, this hinges on government infrastructure budgets holding up and AECOM maintaining its technology edge, with project delays or cost pressures potentially spoiling that underpriced story.

Next Steps

If that mix of upside potential and real risks has you on the fence, do not wait around. Weigh the trade off for yourself with 5 key rewards and 1 important warning sign.

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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.