Builders FirstSource (BLDR) - Market capitalization

Market cap: £5.62 Billion

As of May 2026 Builders FirstSource has a market cap of £5.62 Billion. This makes Builders FirstSource the world's 2445th 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 Builders FirstSource from 2005 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£5.62 B	-34.09%
2025	£8.53 B	-35.82%
2024	£13.30 B	-17.68%
2023	£16.16 B	104.78%
2022	£7.89 B	-35.09%
2021	£12.15 B	247.66%
2020	£3.49 B	55.53%
2019	£2.24 B	127.36%
2018	£0.98 B	-45.68%
2017	£1.82 B	83.63%
2016	£0.99 B	20.87%
2015	£0.82 B	89.28%
2014	£0.43 B	2.42%
2013	£0.42 B	26.48%
2012	£0.33 B	163.34%
2011	£0.12 B	2.89%
2010	£0.12 B	43.18%
2009	£86.25 M	128.69%
2008	£37.71 M	-70.93%
2007	£0.12 B	-56.34%
2006	£0.29 B	-26.55%
2005	£0.40 B

End of Day market cap according to different sources

On May 18th, 2026 the market cap of Builders FirstSource was reported to be:

£5.62 Billion

by Nasdaq

£5.62 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Home Depot HD	£222.62 B	3,855.98%	🇺🇸 USA
Lowe's Companies LOW	£91.03 B	1,517.59%	🇺🇸 USA
LL Flooring LL	£19.28 M	-99.66%	🇺🇸 USA
Masonite DOOR	£2.17 B	-61.31%	🇺🇸 USA
Quanex Building Products NX	£0.57 B	-89.74%	🇺🇸 USA
Boise Cascade BCC	£1.77 B	-68.49%	🇺🇸 USA
Bluelinx BXC	£0.30 B	-94.56%	🇺🇸 USA

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 Builders FirstSource (BLDR)

Market cap: £5.62 Billion