AECOM’s (ACM) Record Backlog Collides With A Costly Charge

AECOM’s (ACM) Record Backlog Collides With A Costly Charge

Thu, August 20, 2026 at 3:48 PM GMT+3 4 min read

• ACM -0.40%

On August 17, AECOM (NYSE:ACM) delivered a third quarter that looked strong and messy at the same time. Backlog hit an all-time high on record quarterly wins, yet the company also absorbed a $337 million pretax charge tied to a delayed construction project. The result was a quarter where headline numbers cratered even as the underlying business kept expanding. That gap between top-line noise and forward momentum is what makes this print worth a closer look.

Bull Case: Bookings Are Piling Up Everywhere

AECOM's backlog grew 13% to a new all-time high, powered by record quarterly wins and a company-wide book-to-burn ratio of 1.6, including 1.8 times in the Americas. Year to date, that ratio sits at 1.4, giving management unusually long visibility into future revenue. The design business, adjusted for one fewer working day, grew net service revenue 5%, with the Americas up 6% and international design returning to growth at 4%, led by the UK and Australia. Stripped of the charge, adjusted EBITDA climbed 5% and adjusted earnings per share rose 11% year over year, while the company raised its full-year adjusted EBITDA margin outlook to 17.4% from 17%.

Wins are coming from every direction. Canada landed a 10-year program management role on a highway and bus transit project, one of the company's largest Canadian awards ever, while Australia's backlog jumped more than 40% year over year. In the U.K., work on the Great Grid electricity upgrade helped push growth into the high single digits. The federal pipeline is expanding too, with the pipeline tied to the Department of War up roughly 30% in the quarter and less than half of IIJA infrastructure funding in AECOM's core markets spent so far. The balance sheet backs it up, with $2 billion of undrawn borrowing capacity and no near-term debt maturities.

Bear Case: A Costly Delay Still Weighing

The $337 million pretax charge stems from a construction management project first bid in 2019, where subcontractor productivity has pushed substantial completion from the first quarter of fiscal 2027 to near the end of the second quarter. That slippage cost $1.99 of earnings per share this quarter and forced a $185 million cash use, and management expects the project to keep burning cash through the first half of fiscal 2027. A second design-build P3 project from the same era also carries a significant claim position as AECOM pursues recoveries, even though the company says it no longer bids that structure for public-private partnership clients.

Beyond the charge, overall net service revenue growth came in below expectations, weighed down by slower-than-anticipated new construction management project starts and the ongoing military conflict in the Middle East, which management expects to persist through the fourth quarter. The Americas segment was heavily impacted, with net service revenue declining 29% primarily due to the construction management charge. The segment's operating margin fell to negative 16.1% including the charge, though underlying performance remained strong with design NSR growing 6% on a constant-day basis. The extra cash drawn to cover the construction management projects is also expected to push interest expense up by $30 million to $35 million in 2027 compared with this year.

What The Market Is Pricing In

Hedge fund ownership of AECOM rose from 45 funds to 49 in the most recent quarter, a sign institutional investors added to positions even as headline results wobbled. Short interest sits at 7.01% of float, a level that suggests a real but not overwhelming bear camp. The stock trades at a forward price-to-earnings ratio of 9.52, as of August 19, which prices in little of the growth embedded in that record backlog.

Where This Leaves Investors

AECOM's quarter leaves two stories running side by side. One is a business setting records in bookings, expanding margins in international markets, and building a federal and defense pipeline that keeps growing. The other is a legacy construction management project that keeps drawing cash and pushing back its finish line. For the backlog story to keep paying off, that construction drag needs to actually end in the first half of fiscal 2027 as management now expects.

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