State Street Corporation (STT) - Market capitalization

Market cap: £37.72 Billion

As of September 2026 State Street Corporation has a market cap of £37.72 Billion. This makes State Street Corporation the world's 492th 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 State Street Corporation from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£37.72 B	35.37%
2025	£27.86 B	21%
2024	£23.02 B	22.74%
2023	£18.76 B	-20.25%
2022	£23.52 B	-6.69%
2021	£25.21 B	33.86%
2020	£18.83 B	-12.62%
2019	£21.55 B	14.2%
2018	£18.87 B	-29.51%
2017	£26.78 B	10.23%
2016	£24.29 B	35.76%
2015	£17.89 B	-14.51%
2014	£20.93 B	8.38%
2013	£19.31 B	44.79%
2012	£13.34 B	4.56%
2011	£12.75 B	-15.27%
2010	£15.05 B	13.08%
2009	£13.31 B	14.88%
2008	£11.59 B	-26.58%
2007	£15.78 B	37.94%
2006	£11.44 B	6.71%
2005	£10.72 B	25.64%
2004	£8.53 B	-12.34%
2003	£9.73 B	23.21%
2002	£7.90 B	-32.24%
2001	£11.66 B	-13.33%
2000	£13.45 B	86.49%
1999	£7.21 B	7.36%
1998	£6.72 B	17.98%
1997	£5.69 B	86%
1996	£3.06 B

End of Day market cap according to different sources

On Sep 15th, 2026 the market cap of State Street Corporation was reported to be:

£37.74 Billion

by Nasdaq

£37.72 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Bank of America BAC	£308.71 B	718.41%	🇺🇸 USA
Northern Trust NTRS	£24.25 B	-35.70%	🇺🇸 USA
JPMorgan Chase JPM	£694.97 B	1,742.44%	🇺🇸 USA
Citigroup C	£169.42 B	349.15%	🇺🇸 USA
BNY Mellon (Bank of New York Mellon) BNY	£77.83 B	106.36%	🇺🇸 USA
Barclays BCS	£63.18 B	67.52%	🇬🇧 UK

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 State Street Corporation (STT)

Market cap: £37.72 Billion