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LyondellBasell Industries market cap LYB

Share price times shares outstanding: what the whole company sells for, since 2011.

Today, Oct 23, 2026
$21.5B
Highest close in our data
$58.7B
Sep 2014

LyondellBasell Industries is worth $21.5B at the close on Oct 23, 2026, at $66.45 a share.

That is up 40% over the last year and down 31% over five years.

Its highest close in our data was $58.7B in Sep 2014.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$21.5B$14.3B$25.9B+54%
2025$13.9B$13.8B$25.1B−42%
2024$24.1B$23.9B$34B−22%
2023$30.8B$27.6B$32.7B+14%
2022$27B$23.8B$38.4B−12%
2021$30.7B$28.6B$38.9B+0%
2020$30.6B$14B$30.7B−2%
2019$31.3B$23.1B$34.3B−1%
2018$31.6B$30.3B$47.9B−27%
2017$43.5B$32.2B$43.5B+24%
2016$35B$31B$38.5B−10%
2015$39.1B$37.4B$49.6B−4%
2014$40.5B$35.4B$58.7B−8%
2013$44B$33.3B$44.2B+38%
2012$31.9B$19.9B$31.9B+70%
2011$18.8B$14B$20.8Bn/a

Against its peers

Companies in Chemicals - Specialty nearest LyondellBasell Industries' size, closest first, today.

What the market cap tells you

Share price times shares outstanding: what the whole company sells for today.

Size, not quality. Large caps move slower and are covered more. That is all it tells you.

More on LyondellBasell Industries

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.