Westlake Chemical (WLK) - Market capitalization

Market cap: $9.32 Billion USD

As of December 2025 Westlake Chemical has a market cap of $9.32 Billion USD. This makes Westlake Chemical the world's 2044th 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 Westlake Chemical from 2004 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	$9.32 B	-36.57%
2024	$14.70 B	-17.99%
2023	$17.93 B	37.14%
2022	$13.07 B	5.34%
2021	$12.41 B	19.13%
2020	$10.42 B	15.72%
2019	$9.00 B	5.95%
2018	$8.50 B	-38.19%
2017	$13.75 B	90.57%
2016	$7.21 B	2.03%
2015	$7.07 B	-12.87%
2014	$8.11 B	-0.24%
2013	$8.13 B	53.38%
2012	$5.30 B	97.96%
2011	$2.68 B	-6.95%
2010	$2.88 B	75.1%
2009	$1.64 B	53.8%
2008	$1.06 B	-14%
2007	$1.24 B	-39.28%
2006	$2.04 B	9.17%
2005	$1.87 B	-13.44%
2004	$2.16 B

End of Day market cap according to different sources

On Dec 10th, 2025 the market cap of Westlake Chemical was reported to be:

$9.32 Billion USD

by Nasdaq

$9.32 Billion USD

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Dow DOW	$17.43 B	86.92%	🇺🇸 USA
Huntsman Corporation HUN	$1.86 B	-79.98%	🇺🇸 USA
Eastman Chemical EMN	$7.45 B	-20.04%	🇺🇸 USA
Albemarle ALB	$15.71 B	68.42%	🇺🇸 USA
Celanese CE	$4.72 B	-49.35%	🇺🇸 USA
Honeywell HON	$129.84 B	1,291.76%	🇺🇸 USA
Olin OLN	$2.48 B	-73.35%	🇺🇸 USA
Phillips 66 PSX	$57.57 B	517.10%	🇺🇸 USA
Exxon Mobil XOM	$509.11 B	5,357.18%	🇺🇸 USA

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.

DISCLAIMER

CompaniesMarketCap is not associated in any way with CoinMarketCap.com
Stock prices are delayed, the delay can range from a few minutes to several hours.
Company logos are from the CompaniesLogo.com logo database and belong to their respective copyright holders. Companies Marketcap displays them for editorial purposes only.

Contact

For inquiries or if you want to report a problem write to hello@8marketcap.com

Links

- Privacy policy

- Terms and conditions

Market capitalization of Westlake Chemical (WLK)

Market cap: $9.32 Billion USD