LON:COST Costain Group (COST) Share Price, News & Analysis GBX 258.50 -1.00 (-0.39%) As of 12:48 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsInsider TradesNews and Trends About Costain Group Stock (LON:COST) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Costain Group alerts:Sign Up Key Stats Today's Range 256▼ 26250-Day Range 221▼ 262.5352-Week Range 140.20▼ 267.50Volume900,431 shsAverage Volume2.21 million shsMarket Capitalization£678.11 millionP/E Ratio18.46Dividend Yield2.00%Price TargetGBX 275Consensus RatingBuy Company Overview Costain improves people's lives by creating connected, sustainable infrastructure that enables people and the planet to thrive. Through the delivery of predictable, best-in-class solutions across the transport, water, energy and defence markets, we are creating a sustainable future and securing a more prosperous, resilient and decarbonised UK. By bringing together our unique mix of construction, consultancy, engineering and digital services, we work strategically with our customers and suppliers to meet critical national needs. Together, our people transform the performance of the infrastructure that connects, protects and powers people's lives. Our 3,500 people manage a workforce of around 14,500 people and collaborate with customers, partners, communities and wider industry to make infrastructure fit for a better future. Our ambition is to become a net zero business by 2045, while enhancing biodiversity and natural capital, and we have plans in place to deliver this. We are committed to procure responsibly and to be an inclusive and accessible business for all, enabling us to be our best while focusing on the outcomes that we deliver for people and planet. Read More Costain Group Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks50th Percentile Overall ScoreCOST MarketRank™: 2.51262135922 of 5 starsCostain Group scored higher than 50% of companies evaluated by MarketBeat. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion2.2 / 5Analyst RatingBuy Consensus RatingCostain Group has received a consensus rating of Buy. The company's average rating score is 3.00, and is based on no strong buy ratings, 1 buy rating, no hold ratings, and no sell ratings.Upside/DownsideThe consensus price target for Costain Group is close to its current price, suggesting limited near-term upside or downside.Amount of Analyst CoverageCostain Group has only been the subject of 1 research reports in the past 90 days.Read more about Costain Group's stock forecast and price target. Earnings and Valuation1.3 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of Costain Group is 18.46, which means that it is trading at a less expensive P/E ratio than the market average P/E ratio of about 25.70.Price to Earnings Ratio vs. SectorThe P/E ratio of Costain Group is 18.46, which means that it is trading at a less expensive P/E ratio than the Industrials sector average P/E ratio of about 32.05.Price to Earnings Growth RatioCostain Group has a PEG Ratio of 1.63. PEG Ratios above 1 indicate that a company could be overvalued.Price to Book Value per Share RatioCostain Group has a P/B Ratio of 3.07. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities. Short InterestN/AShort Interest LevelN/A Short InterestThere is no current short interest data available for COST. Dividend1.7 / 5Dividend StrengthWeak Dividend YieldCostain Group pays a meaningful dividend of 2.00%, higher than the bottom 25% of all stocks that pay dividends.Dividend GrowthCostain Group does not have a long track record of dividend growth.Dividend CoverageThe dividend payout ratio of Costain Group is 30.00%. This payout ratio is at a healthy, sustainable level, below 75%.Read more about Costain Group's dividend. News and Social Media1.9 / 5News Sentiment0.07 News SentimentCostain Group has a news sentiment score of 0.07. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.56 average news sentiment score of Industrials companies.News Coverage This WeekMarketBeat has tracked 2 news articles for Costain Group this week, compared to 1 article on an average week.Search InterestOnly 98 people have searched for COST on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days. Company Ownership3.3 / 5Insider TradingAcquiring Shares Net Insider BuyingOver the last three months, insiders have purchased a net £14,913.04 in company stock, which represents 0.0022% of the company's market cap.Insider Buying vs. Insider SellingIn the past three months, Costain Group insiders have bought more of their company's stock than they have sold. Specifically, they have bought £14,913.04 in company stock and sold GBX 0 in company stock.Percentage Held by Insiders49.36% of the stock of Costain Group is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions36.41% of the stock of Costain Group is held by institutions.Read more about Costain Group's insider trading history. Receive COST Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Costain Group and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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COST Stock News HeadlinesUK Nuclear Power Spending Could Put Costain Group Stock In FocusOctober 27 at 12:13 AM | finance.yahoo.comCostain Adds Berenberg as Joint Corporate Broker to Bolster Market ReachOctober 22, 2026 | tipranks.comThe "velvet rope" stock setups hiding from regular indicatorsK.I.R.A. is a new trading engine built to flag market setups before they show up on standard charts. Former hedge fund trader Lance Ippolito says it identifies early moves and lets traders set their own risk level instead of guessing.October 29 at 1:00 AM | The TradingPub (Ad)Costain : Scrip Dividend Documentation - BookletOctober 21, 2026 | marketscreener.comMCostain completes £20m share buyback and cancels 9.3m sharesOctober 19, 2026 | tipranks.comWhat Costain Group Holders Saw EarlyOctober 16, 2026 | finance.yahoo.comCostain advances share buyback, cancels 8.9m sharesOctober 14, 2026 | tipranks.comCostain Group (LON:COST) Stock: Insider Anthony (Tony) James Quinlan Purchases 5,692 SharesOctober 2, 2026 | insidertrades.comSee More Headlines COST Stock Analysis - Frequently Asked Questions How have COST shares performed this year? Costain Group's stock was trading at GBX 159.20 at the start of the year. Since then, COST stock has increased by 62.4% and is now trading at GBX 258.50. How were Costain Group's earnings last quarter? Costain Group PLC (LON:COST) issued its quarterly earnings data on Thursday, August, 13th. The company reported GBX 5.70 earnings per share for the quarter. Costain Group had a net margin of 3.57% and a trailing twelve-month return on equity of 14.73%. Read the conference call transcript. How do I buy shares of Costain Group? Shares of COST stock and other U.K. stocks can be purchased through online brokerage accounts that support trading on the London Stock Exchange (LSX). Some U.K. companies can be purchased through major U.S. brokerages in the form of American Depository Receipts (ADRs), which are placeholder equities held in a trust by a bank that represent shares of a foreign stock. What other stocks do shareholders of Costain Group own? Based on aggregate information from My MarketBeat watchlists, some other companies that Costain Group investors own include NVIDIA (NVDA), Balfour Beatty (BBY), Kier Group (KIE), Lloyds Banking Group (LLOY), Rolls-Royce Holdings plc (RR.L), Boeing (BA) and Alibaba Group (BABA). Company Calendar Last Earnings8/13/2026Today10/29/2026CMD 202611/19/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeLON SectorIndustrials Industry Construction & Engineering Sub-IndustryConstruction & Engineering Current SymbolLON:COST CIKN/A Webcostain.com Phone+44-1628-842444FaxN/AEmployees3,270Year FoundedN/APrice Target and Rating Average Price Target for Costain GroupGBX 275 High Price TargetGBX 275 Low Price TargetGBX 275 Potential Upside/Downside+6.4%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage1 Analysts Profitability EPS (Trailing Twelve Months)GBX 14 Trailing P/E Ratio18.46 Forward P/E Ratio18.79 P/E Growth1.63Net Income£29.90 million Net Margins3.57% Pretax MarginN/A Return on Equity14.73% Return on Assets5.63% Debt Debt-to-Equity Ratio12.61 Current Ratio1.40 Quick Ratio1.32 Sales & Book Value Annual Sales£1.06 billion Price / Sales0.64 Cash FlowGBX 296.58 per share Price / Cash Flow0.87 Book ValueGBX 84.30 per share Price / Book3.07Miscellaneous Outstanding Shares262,326,000Free FloatN/AMarket Cap£678.11 million OptionableNot Optionable Beta0.83 Don't Wait for the OpenAI IPOThe AI wave will soon hit public markets with Anthropic and OpenAI set to go public later this year. 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