Ticker League

Current

$19.5B

As of Jul 29, 2026

5-Year Average

$27.2B

All-Time High

$60.4B

Sep 5, 2014

All-Time Low

$11.6B

Mar 16, 2020

Market cap daily chart for LyondellBasell (LYB)

Aug 2, 2021 – Jul 29, 2026 · 1,253 trading days

Market Cap growth chart for LyondellBasell (LYB) from 2017 to 2026

Latest: +40.1%

Market Cap history table for LyondellBasell (LYB) from 2010 to 2026

  • 2026$19.5B+40.1%
  • 2025$13.9B-42.4%
  • 2024$24.2B-21.9%
  • 2023$31B+13.8%
  • 2022$27.2B-11.6%
  • 2021$30.8B+0.6%
  • 2020$30.6B-8.2%
  • 2019$33.4B+3.1%
  • 2018$32.3B-26.5%
  • 2017$44B+22.2%
  • 2016$36B-11.0%
  • 2015$40.5B-2.1%
  • 2014$41.4B-9.6%
  • 2013$45.8B+38.9%
  • 2012$32.9B+77.3%
  • 2011$18.6B-4.6%
  • 2010$19.5B

Market Cap values are taken from LyondellBasell's reported income statements (share counts) and end-of-day prices (interim 6-K and annual 20-F filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

About Market Cap at LyondellBasell (LYB)

According to LyondellBasell's latest reported financial statements, the company's latest reported market cap is $26B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

LyondellBasell (LYB) most recent annual market cap stands at $19.5B (2026) – surged 40.1% year-over-year.

Over 2021–2026 (5 years), LyondellBasell market cap expanded at a -8.7% compound annual rate, with a net decline across the window.

LyondellBasell market cap plunged from $45.8B in 2013 to $19.5B in 2026, a 57.3% drawdown.

The record annual market cap stands at $45.8B, reached in 2013; the historical low of $13.9B was recorded in 2025.

LyondellBasell Market Cap by Year

LyondellBasell Market Cap 2026: $19.5B

In 2026, LyondellBasell reported market cap of $19.5B, surged 40.1% from 2025.

LyondellBasell Market Cap 2025: $13.9B

LyondellBasell market cap in 2025 was $13.9B, plunged 42.4% below 2024. This figure represents the lowest annual value in the available history.

LyondellBasell Market Cap 2024: $24.2B

2024's market cap for LyondellBasell came in at $24.2B, declined 21.9% below 2023.

LyondellBasell Market Cap 2023: $31B

LyondellBasell posted market cap of $31B in 2023, grew 13.8% from 2022.

LyondellBasell Market Cap 2022: $27.2B

LyondellBasell market cap in 2022 was $27.2B.

See more financial history for LyondellBasell (LYB).

Sector peers by Market Cap

Basic Materials peers of LyondellBasell (LYB), ranked by their latest market cap

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