Alcoa (AA) - Market capitalization

Market cap: HK$125.77 Billion

As of February 2026 Alcoa has a market cap of HK$125.77 Billion. This makes Alcoa the world's 1426th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$125.77 B	15.06%
2025	HK$109.30 B	44.63%
2024	HK$75.57 B	59.47%
2023	HK$47.39 B	-24.61%
2022	HK$62.86 B	-26.5%
2021	HK$85.52 B	157.44%
2020	HK$33.22 B	6.87%
2019	HK$31.08 B	-19.16%
2018	HK$38.45 B	-50.61%
2017	HK$77.87 B	95.57%
2016	HK$39.81 B

End of Day market cap according to different sources

On Feb 27th, 2026 the market cap of Alcoa was reported to be:

HK$125.73 Billion

by Nasdaq

HK$125.77 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
BHP Group BHP	HK$1.639 T	1,203.41%	🇦🇺 Australia
Kaiser Aluminum KALU	HK$16.50 B	-86.88%	🇺🇸 USA
Century Aluminum CENX	HK$37.65 B	-70.06%	🇺🇸 USA
Aluminum Corporation of China 601600.SS	HK$268.52 B	113.50%	🇨🇳 China

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: HK$125.77 Billion