Aecon Group stock has at times faced downward pressure or muted valuations due to a mix of macroeconomic headwinds impacting the construction and infrastructure sectors, including inflationary pressures on fixed-price legacy projects, supply chain disruptions, and higher interest rates that increase project financing costs. While the company has consistently maintained record high order backlogs and robust revenue generation across diverse utility, transit, and nuclear energy markets, investors have occasionally remained cautious regarding profit margin recoveries on complex lump-sum civil engineering contracts. Market sentiment often weighs these execution risks and industry-wide margin compressions against its long-term growth potential and strong government-backed infrastructure pipelines.