Costain Group (COST.L) - Market capitalization

Market cap: ₹33.83 Billion

As of May 2025 Costain Group has a market cap of ₹33.83 Billion. This makes Costain Group the world's 7095th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Costain Group from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	₹33.83 B	8.12%
2024	₹31.29 B	68.17%
2023	₹18.60 B	71.6%
2022	₹10.84 B	-26.49%
2021	₹14.75 B	-9.09%
2020	₹16.22 B	0.53%
2019	₹16.14 B	-46.14%
2018	₹29.96 B	-29.65%
2017	₹42.59 B	37.83%
2016	₹30.90 B	-17.7%
2015	₹37.55 B	34.43%
2014	₹27.93 B	48.17%
2013	₹18.85 B	27.97%
2012	₹14.73 B	49.89%
2011	₹9.82 B	5.57%
2010	₹9.31 B	-19.39%
2009	₹11.54 B	31.06%
2008	₹8.81 B	-33.43%
2007	₹13.23 B	-16.24%
2006	₹15.80 B	33%
2005	₹11.88 B	-12.96%
2004	₹13.65 B	29.52%
2003	₹10.54 B	67.69%
2002	₹6.28 B	101.15%
2001	₹3.12 B	20.98%
2000	₹2.58 B	-31.82%
1999	₹3.78 B	-9.16%
1998	₹4.17 B	-10.86%
1997	₹4.67 B	-20.22%
1996	₹5.86 B

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Costain Group (COST.L)

Market cap: ₹33.83 Billion