Go Pro
→ They're not buying gold. They're buying this. (From Behind the Markets) (Ad)tc pixel Free COST Stock Alerts

Costain Group (COST) Stock Chart & Stock Price History

Costain Group logo
GBX 262 +4.50 (+1.75%)
As of 12:00 PM Eastern
Compare

Costain Group Stock Price Performance

5 Day
Performance
+2.34%
1 Month
Performance
+18.28%
3 Month
Performance
+24.47%
Year-To-Date
Performance
+64.57%
1 Year
Performance
+89.31%
5 Year
Performance
+359.65%

COST Stock Chart for Friday, October, 2, 2026

30 Days 90 Days 1 Year

The Costain Group (COST) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 89.31%, with a year-to-date return of 64.57%. In the past month, the stock has increased 18.28%, reflecting recent market activity.

As of the latest close, Costain Group traded at GBX 257.50 with a market cap of £677.61 million and volume of 20.27 million shares. Five years ago, the stock traded at GBX 57, representing a 359.65% increase over that period. At the time, it had a market cap of £156.72 million and a volume of 601,466 shares. View the advanced COST chart on TradingView.

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.

Subscribe Now
SMS 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. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.

Costain Group Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
10/01/2026GBX 259.77GBX 257.50
-0.87%		GBX 262GBX 25420.27 million shs£677.61 million
09/30/2026GBX 260.50GBX 259.77
-0.28%		GBX 264.50GBX 25811.87 million shs£683.58 million
09/29/2026GBX 262.50GBX 260.50
-0.76%		GBX 263GBX 257.50786,205 shs£685.51 million
09/28/2026GBX 256GBX 262.50
+2.54%		GBX 265GBX 255.50990,204 shs£690.77 million
09/25/2026GBX 253GBX 256
+1.19%		GBX 259.50GBX 253.501.77 million shs£673.66 million
09/24/2026GBX 252.92GBX 253
+0.03%		GBX 255.50GBX 25029.32 million shs£665.77 million
09/23/2026GBX 255GBX 252.92
-0.82%		GBX 255.50GBX 251.508.22 million shs£665.56 million
09/22/2026GBX 254GBX 255
+0.39%		GBX 257.50GBX 251.988.32 million shs£671.03 million
09/21/2026GBX 254.50GBX 254
-0.20%		GBX 259GBX 2509.66 million shs£668.40 million
09/18/2026GBX 250GBX 254.50
+1.80%		GBX 255.20GBX 247.502.24 million shs£669.72 million
09/17/2026GBX 246.50GBX 250
+1.42%		GBX 253GBX 242.503.83 million shs£657.88 million
09/16/2026GBX 225.20GBX 246.50
+9.46%		GBX 250GBX 2252.66 million shs£648.67 million
09/15/2026GBX 225GBX 225.20
+0.09%		GBX 228.66GBX 223780,641 shs£592.61 million
09/14/2026GBX 229.50GBX 225
-1.96%		GBX 230.50GBX 2239.01 million shs£592.09 million
09/11/2026GBX 224GBX 229.50
+2.46%		GBX 233.50GBX 222.5011.54 million shs£603.93 million
09/10/2026GBX 226.50GBX 224
-1.10%		GBX 227.50GBX 2223.69 million shs£589.46 million
09/09/2026GBX 225GBX 226.50
+0.67%		GBX 230GBX 223.501.51 million shs£596.04 million
09/08/2026GBX 225GBX 225GBX 227GBX 219.5013.13 million shs£592.09 million
09/07/2026GBX 227.50GBX 225
-1.10%		GBX 228.50GBX 225476,746 shs£592.09 million
09/04/2026GBX 224GBX 227.50
+1.56%		GBX 228GBX 2243.65 million shs£602.17 million
09/03/2026GBX 221.50GBX 224
+1.13%		GBX 232GBX 218616,250 shs£592.91 million
09/02/2026GBX 224GBX 221.50
-1.12%		GBX 234.50GBX 217575,478 shs£586.29 million
09/01/2026GBX 230.50GBX 224
-2.82%		GBX 230.50GBX 222635,760 shs£592.91 million
Related Companies

This page (LON:COST) was last updated on 10/2/2026 by MarketBeat.com Staff.
From Our Partners
Elon Warns "America Will Go Bankrupt". Trump's Plan Inside.
National debt just crossed 40 trillion dollars, and Elon Musk says America is 1,000% going to go bankrupt with...
American Hartford Gold | Sponsoredtc pixel
The SEC Just Opened The Floodgates…
The SEC removed the 25 year old Pattern Day Trader rule in June 2026, cutting the minimum to open a trading ac...
StocksToTrade | Sponsoredtc pixel
A new kind of civil war is coming after election day?
Across America, AI-driven backlash is fueling protests, lawsuits, and moratoria that could reshape the politic...
Stansberry Research | Sponsoredtc pixel
Trump's crypto bank just got approved
Here's a detail almost everyone missed about last October. When crypto stumbled in October 2025, Trump's cr...
Crypto 101 Media | Sponsoredtc pixel
The investigation Porter spent tens of thousands to document
Porter Stansberry flew the Porter and Co. team 3,300 miles to Dublin to investigate a 17-year investing experi...
Porter & Company | Sponsoredtc pixel
Bank of America: 'Digital Dollar Inevitable'
Bank of America just revealed your expiration date. In their Bloomberg interview, they didn't just predict the...
Decentralized Masters | Sponsoredtc pixel
Small Colorado Company (Backed by Sam Altman) Could Save U.S. Power Grid
A small Colorado company has secured rights to technology that could prevent the U.S. public power grid from c...
Altimetry | Sponsoredtc pixel
The rich already moved their money
By the time a crash hits the news, it's already too late to protect your money. Parkview Capital's free Mar...
Parkview Capital Group | Sponsoredtc pixel