Alcoa (AA) - Market capitalization

Market cap: £9.07 Billion

As of December 2025 Alcoa has a market cap of £9.07 Billion. This makes Alcoa the world's 1672th 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 Alcoa from 2016 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£9.07 B	16.96%
2024	£7.75 B	62.87%
2023	£4.76 B	-28.38%
2022	£6.65 B	-18.16%
2021	£8.12 B	158.45%
2020	£3.14 B	3.28%
2019	£3.04 B	-21.32%
2018	£3.86 B	-47.54%
2017	£7.37 B	77.21%
2016	£4.16 B

End of Day market cap according to different sources

On Dec 17th, 2025 the market cap of Alcoa was reported to be:

£9.07 Billion

by Nasdaq

£9.07 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Aluminum Corporation of China 601600.SS	£19.29 B	112.68%	🇨🇳 China
Kaiser Aluminum KALU	£1.34 B	-85.16%	🇺🇸 USA
Century Aluminum CENX	£2.24 B	-75.28%	🇺🇸 USA
BHP Group BHP	£113.46 B	1,150.56%	🇦🇺 Australia

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 Alcoa (AA)

Market cap: £9.07 Billion