Westlake Corporation (WLK)

Westlake Market Cap

Westlake has a market cap or net worth of $9.78 billion as of June 23, 2026. Its market cap has increased by 3.67% in one year.

• Market Cap: 9.78B
• Enterprise Value: 13.76B
• 1-Year Change: 3.67%
• Ranking: #957
• Category: Mid-Cap
• Stock Price: $76.33

Market Cap Chart

Since August 12, 2004, Westlake's market cap has increased from $961.10M to $9.78B, an increase of 917.54%. That is a compound annual growth rate of 11.19%.

Market Cap History

Date	Market Cap	% Change
Jun 23, 2026	9.78B	3.11%
Dec 31, 2025	9.48B	-35.72%
Dec 31, 2024	14.76B	-17.72%
Dec 29, 2023	17.93B	37.14%
Dec 30, 2022	13.08B	5.34%
Dec 31, 2021	12.42B	19.12%
Dec 31, 2020	10.42B	15.76%
Dec 31, 2019	9.00B	5.34%
Dec 31, 2018	8.55B	-37.86%
Dec 29, 2017	13.75B	90.57%
Dec 30, 2016	7.22B	1.70%
Dec 31, 2015	7.10B	-12.71%
Dec 31, 2014	8.13B	-0.25%
Dec 31, 2013	8.15B	54.10%
Dec 31, 2012	5.29B	97.35%
Dec 30, 2011	2.68B	-6.85%
Dec 31, 2010	2.88B	74.92%
Dec 31, 2009	1.64B	53.79%
Dec 31, 2008	1.07B	-14.00%
Dec 31, 2007	1.24B	-39.26%
Dec 29, 2006	2.05B	9.15%
Dec 30, 2005	1.88B	-13.46%
Dec 31, 2004	2.17B	125.52%
Aug 12, 2004	961.10M	-

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Data Source: Nasdaq Data Link Last updated: Jun 22, 2026

Market cap data is provided by Nasdaq Data Link. The current market cap updates continuously throughout the trading day, while the historical market cap is updated daily after market close.

Update frequency:

Daily

Last checked:

Jun 23, 2026

Data Sources Report a data error

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