Meet Samuel – Your Personal Investing Prophet
- Start a conversation with TipRanks’ trusted, data-backed investment intelligence
- Ask Samuel about stocks, your portfolio, or the market and get instant, personalized insights in seconds
Costain ( (GB:COST) ) has issued an update.
Costain Group PLC has continued executing its previously announced share buyback programme, repurchasing 219,853 ordinary shares on the London Stock Exchange between 29 April and 5 May 2026 at daily volume‑weighted average prices ranging from about 177p to 187p. The company plans to cancel all of these shares, consistent with its stated intention not to hold any shares in treasury.
Following these latest transactions, Costain has bought a total of 1,802,381 shares for cancellation under the programme, reducing its share count to 267,912,514 ordinary shares in issue. The ongoing reduction in share capital is likely to enhance earnings per share over time and signals management’s continued confidence in the company’s valuation and financial position, which may be supportive for existing shareholders.
The most recent analyst rating on (GB:COST) stock is a Hold with a £180.00 price target. To see the full list of analyst forecasts on Costain stock, see the GB:COST Stock Forecast page.
Spark’s Take on COST Stock
According to Spark, TipRanks’ AI Analyst, COST is a Outperform.
The score is driven primarily by improved financial stability and earnings quality (higher margins, low leverage, solid cash conversion), supported by strong technical uptrend signals. Valuation is reasonable but not deeply compelling, and the key risk tempering the score is the multi-year revenue contraction, which could limit future growth if it persists.
To see Spark’s full report on COST stock, click here.
More about Costain
Costain Group PLC is a UK-based engineering and construction company focused on infrastructure solutions, including transportation, energy and water projects. The group delivers complex programmes for public and private sector clients, positioning itself within the broader infrastructure and construction services market.
Average Trading Volume: 1,629,152
Technical Sentiment Signal: Buy
Current Market Cap: £501.1M
Find detailed analytics on COST stock on TipRanks’ Stock Analysis page.