Costain Group (LSE:COST) has set out its reporting timetable for the year ended 31 December 2025. The company said it will publish a trading update on 26 January 2026, followed by the release of its full-year results on 10 March 2026.
The announcement provides clarity for investors as Costain continues to execute its strategy focused on delivering sustainable and resilient infrastructure solutions across key UK markets. Management said the schedule reflects its commitment to timely and transparent communication on financial performance.
From an outlook perspective, Costain benefits from a solid financial base, supportive technical indicators and positive corporate developments, including recent contract awards. These strengths are balanced against relatively modest margins and some pressure on cash flow efficiency. Overall, the shares appear fairly valued, with a constructive technical backdrop supporting a broadly positive assessment.
More about Costain
Costain Group is a UK infrastructure solutions provider offering construction, consultancy, engineering and digital services across sectors including transport, water, energy and defence. The company focuses on developing connected and sustainable infrastructure that supports a more resilient and lower-carbon UK, working in partnership with customers and suppliers to address critical national requirements.

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