Spire Inc. (SR) - Market capitalization

Market cap: £4.03 Billion

As of March 2026 Spire Inc. has a market cap of £4.03 Billion. This makes Spire Inc. the world's 3019th 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 Spire Inc. from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£4.03 B	10.95%
2025	£3.64 B	17.77%
2024	£3.09 B	18.69%
2023	£2.60 B	-12.9%
2022	£2.99 B	19.72%
2021	£2.49 B	2.93%
2020	£2.42 B	-25.24%
2019	£3.24 B	9.72%
2018	£2.95 B	10.18%
2017	£2.68 B	12.26%
2016	£2.39 B	37.49%
2015	£1.73 B	17.59%
2014	£1.47 B	63.63%
2013	£0.90 B	67.75%
2012	£0.53 B	-7.84%
2011	£0.58 B	10.42%
2010	£0.52 B	14.05%
2009	£0.46 B	-34.36%
2008	£0.70 B	88.61%
2007	£0.37 B	-2.64%
2006	£0.38 B	6.87%
2005	£0.36 B	5.67%
2004	£0.34 B	11.8%
2003	£0.30 B	6.41%
2002	£0.28 B	-7.85%
2001	£0.31 B	5.25%
2000	£0.29 B	17.02%
1999	£0.25 B	-10.91%
1998	£0.28 B	-5.45%
1997	£0.29 B	21.24%
1996	£0.24 B

End of Day market cap according to different sources

On Mar 1st, 2026 the market cap of Spire Inc. was reported to be:

£4.03 Billion

by Nasdaq

£4.03 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Deluxe Corporation DLX	£0.93 B	-76.83%	🇺🇸 USA
Document Security Systems DSS	£6.81 M	-99.83%	🇺🇸 USA
RR Donnelley RRD	£0.60 B	-84.95%	🇺🇸 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 Spire Inc. (SR)

Market cap: £4.03 Billion