LyondellBasell (LYB) - Market capitalization

Market cap: HK$164.79 Billion

As of September 2026 LyondellBasell has a market cap of HK$164.79 Billion. This makes LyondellBasell the world's 1156th 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$164.79 B	52.15%
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 Aug 31st, 2026 the market cap of LyondellBasell was reported to be:

HK$164.77 Billion

by Nasdaq

HK$164.79 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Celanese CE	HK$39.12 B	-76.26%	🇺🇸 USA
Dow DOW	HK$172.81 B	4.86%	🇺🇸 USA
Dupont De Nemours DD	HK$142.47 B	-13.55%	🇺🇸 USA
Westlake Corporation WLK	HK$75.20 B	-54.37%	🇺🇸 USA
Sasol SSL	HK$60.40 B	-63.35%	🇿🇦 South Africa
Braskem BAK	HK$5.31 B	-96.78%	🇧🇷 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$164.79 Billion