OSB Group Plc (OSB.L) - Market capitalization

Market cap: £2.23 Billion

As of January 2026 OSB Group Plc has a market cap of £2.23 Billion. This makes OSB Group Plc the world's 3997th 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 OSB Group Plc from 2014 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£2.23 B	-1.48%
2025	£2.27 B	50.98%
2024	£1.50 B	-17.55%
2023	£1.82 B	-11.36%
2022	£2.05 B	-17.1%
2021	£2.48 B	31.04%
2020	£1.89 B	-1.85%
2019	£1.93 B	125.61%
2018	£0.85 B	-14.82%
2017	£1.00 B	22.26%
2016	£0.82 B	-4.44%
2015	£0.85 B	64.9%
2014	£0.52 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 OSB Group Plc (OSB.L)