Williams Companies (WMB) - Market capitalization

Market cap: A$121.31 Billion

As of August 2026 Williams Companies has a market cap of A$121.31 Billion. This makes Williams Companies the world's 286th 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 Williams Companies from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$121.31 B	11.79%
2025	A$108.52 B	2.66%
2024	A$105.71 B	69.98%
2023	A$62.19 B	5.58%
2022	A$58.90 B	34.97%
2021	A$43.64 B	37.91%
2020	A$31.64 B	-22.93%
2019	A$41.06 B	8.42%
2018	A$37.87 B	17.3%
2017	A$32.28 B	-0.46%
2016	A$32.43 B	22.76%
2015	A$26.42 B	-35.58%
2014	A$41.01 B	38.89%
2013	A$29.53 B	37.65%
2012	A$21.45 B	13.03%
2011	A$18.98 B	33.33%
2010	A$14.23 B	4.06%
2009	A$13.68 B	15.19%
2008	A$11.87 B	-50.48%
2007	A$23.98 B	21.22%
2006	A$19.78 B	8.96%
2005	A$18.15 B	54.58%
2004	A$11.74 B	71.57%
2003	A$6.84 B	176.48%
2002	A$2.47 B	-90.39%
2001	A$25.77 B	-19.43%
2000	A$31.99 B	56.09%
1999	A$20.49 B	-6.04%
1998	A$21.81 B	55.76%
1997	A$14.00 B	88.42%
1996	A$7.43 B

End of Day market cap according to different sources

On Aug 24th, 2026 the market cap of Williams Companies was reported to be:

A$121.08 Billion

by Nasdaq

A$121.13 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
TC Energy TRP	A$89.91 B	-25.89%	🇨🇦 Canada
Enbridge ENB	A$151.59 B	24.95%	🇨🇦 Canada
Ultrapar Participacoes UGP	A$9.96 B	-91.79%	🇧🇷 Brazil
Southwestern Energy SWN	A$10.94 B	-90.98%	🇺🇸 USA
Sea Limited SE	A$105.27 B	-13.22%	🇸🇬 Singapore
EQT Corporation EQT	A$47.13 B	-61.15%	🇺🇸 USA
Enterprise Products EPD	A$115.32 B	-4.95%	🇺🇸 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 Williams Companies (WMB)

Market cap: A$121.31 Billion