LyondellBasell (LYB) - Market capitalization

Market cap: HK$189.69 Billion

As of May 2026 LyondellBasell has a market cap of HK$189.69 Billion. This makes LyondellBasell the world's 981th 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 LyondellBasell from 2010 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$189.69 B	75.13%
2025	HK$108.31 B	-42.05%
2024	HK$186.92 B	-22.39%
2023	HK$240.86 B	14.02%
2022	HK$211.24 B	-11.73%
2021	HK$239.32 B	0.87%
2020	HK$237.27 B	-3.3%
2019	HK$245.37 B	0.29%
2018	HK$244.66 B	-28.04%
2017	HK$339.99 B	25.42%
2016	HK$271.07 B	-8.56%
2015	HK$296.45 B	-1.14%
2014	HK$299.86 B	-12.23%
2013	HK$341.65 B	34.97%
2012	HK$253.12 B	73.71%
2011	HK$145.71 B	-3.59%
2010	HK$151.13 B

End of Day market cap according to different sources

On May 15th, 2026 the market cap of LyondellBasell was reported to be:

HK$186.87 Billion

by Nasdaq

HK$189.69 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Celanese CE	HK$48.76 B	-74.29%	🇺🇸 USA
Dow DOW	HK$218.66 B	15.27%	🇺🇸 USA
Dupont De Nemours DD	HK$158.25 B	-16.57%	🇺🇸 USA
Westlake Corporation WLK	HK$88.86 B	-53.15%	🇺🇸 USA
Sasol SSL	HK$67.48 B	-64.42%	🇿🇦 South Africa
Braskem BAK	HK$15.28 B	-91.94%	🇧🇷 Brazil

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 LyondellBasell (LYB)

Market cap: HK$189.69 Billion