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Westlake Chemical Corporation (WLK) Financial History

20 years of revenue, earnings, cash-flow and balance-sheet history from public filings.

BASIC MATERIALS · SPECIALTY CHEMICALS · DATA UPDATED 2026-09-19

Westlake Chemical Corporation (WLK) operates in the SPECIALTY CHEMICALS industry and is headquartered in Houston, United States with about 14,600 employees. Its market capitalization is roughly $9 billion. In the fiscal year ended 2025-12-31, WLK reported $11.2B in revenue and ($1.5B) in net income.

Westlake Corporation manufactures and markets performance and essential materials, and housing and infrastructure products in the United States, Canada, Germany, China, Mexico, Brazil, France, Italy, and internationally.

Interactive charts & full statements → Open the WLK valuation workbench →

WLK Revenue & Earnings History — Annual Income Statement

Income statement	TTM → 2026-06-30	2025-12-31	2024-12-31	2023-12-31	2022-12-31	2021-12-31	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31	2007-12-31	2006-12-31
Total Revenue	$11.3B	$11.2B	$12.1B	$12.5B	$15.8B	$11.8B	$7.5B	$8.1B	$8.6B	$8.0B	$5.1B	$4.5B	$4.4B	$3.8B	$3.6B	$3.6B	$3.2B	$2.3B	$3.7B	$3.2B	$2.5B
Gross Profit	—	$289M	$2.0B	$2.2B	$4.1B	$3.5B	$1.0B	$1.3B	$2.0B	$1.8B	$983M	$1.2B	$1.3B	$1.1B	$737M	$559M	$483M	$195M	$69M	$271M	$396M
Gross Margin %	—	2.6%	16.1%	17.7%	25.8%	29.7%	13.6%	15.5%	23.0%	21.9%	19.4%	26.6%	29.8%	29.3%	20.6%	15.4%	15.2%	8.4%	1.9%	8.5%	16.0%
Operating Income (EBIT)	($1.2B)	($1.6B)	$875M	$729M	$3.0B	$2.8B	$429M	$656M	$1.4B	$1.2B	$583M	$960M	$1.1B	$953M	$615M	$447M	$378M	$107M	($30M)	$175M	$313M
Operating Margin %	-10.8%	-14.1%	7.2%	5.8%	19.3%	23.8%	5.7%	8.1%	16.3%	15.2%	11.5%	21.5%	25.5%	25.4%	17.2%	12.3%	11.9%	4.6%	-0.8%	5.5%	12.6%
Net Income	($1.2B)	($1.5B)	$602M	$479M	$2.2B	$2.0B	$330M	$421M	$996M	$1.3B	$399M	$646M	$679M	$610M	$386M	$259M	$221M	$53M	($30M)	$115M	$195M
Net Margin %	-10.9%	-13.5%	5.0%	3.8%	14.2%	17.1%	4.4%	5.2%	11.5%	16.2%	7.9%	14.5%	15.4%	16.2%	10.8%	7.1%	7.0%	2.3%	-0.8%	3.6%	7.8%
EBITDA	—	($199M)	$2.2B	$2.0B	$4.2B	$3.7B	$1.2B	$1.4B	$2.1B	$1.8B	$1.0B	$1.2B	$1.3B	$1.1B	$773M	$584M	$512M	$237M	$88M	$281M	$400M
Earnings Per Share (EPS)	$-9.63	$-11.70	$4.66	$3.72	$17.44	$15.66	$2.58	$3.27	$7.66	$10.07	$3.07	$4.88	$5.08	$4.56	$2.89	$1.95	$1.69	$0.40	$-0.23	$0.88	$1.49
Shares Outstanding (M)	—	129M	129M	129M	129M	129M	128M	129M	130M	130M	130M	132M	134M	134M	133M	133M	131M	132M	131M	131M	131M

USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).

WLK Quarterly Revenue & Earnings — Last 8 Quarters

Quarterly income statement	2026-06-30	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30
Total Revenue	$3.3B	$2.7B	$2.5B	$2.8B	$3.0B	$2.8B	$2.8B	$3.1B	$3.2B
Gross Profit	—	$82M	($437M)	$236M	$258M	$232M	$328M	$499M	$664M
Gross Margin %	—	3.1%	-17.2%	8.3%	8.7%	8.2%	11.5%	16.0%	20.7%
Operating Income (EBIT)	$367M	($154M)	($671M)	($766M)	($109M)	($32M)	$66M	$180M	$406M
Operating Margin %	11.2%	-5.8%	-26.5%	-27.0%	-3.7%	-1.1%	2.3%	5.8%	12.7%
Net Income	$260M	($169M)	($544M)	($782M)	($142M)	($40M)	$7M	$108M	$313M
Net Margin %	8.0%	-6.4%	-21.5%	-27.6%	-4.8%	-1.4%	0.2%	3.5%	9.8%
EBITDA	—	$38M	($266M)	($431M)	$210M	$288M	$416M	$505M	$744M
Earnings Per Share (EPS)	$2.01	$-1.32	$-4.22	$-6.10	$-1.11	$-0.31	$0.05	$0.84	$2.42
Shares Outstanding (M)	—	128M	129M	128M	128M	128M	129M	129M	129M

USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).

WLK Free Cash Flow History

Cash flow	TTM → 2026-06-30	2025-12-31	2024-12-31	2023-12-31	2022-12-31	2021-12-31	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31	2007-12-31	2006-12-31
Cash from Operations (CFO)	$631M	$465M	$1.3B	$2.3B	$3.4B	$2.4B	$1.3B	$1.3B	$1.4B	$1.5B	$834M	$1.1B	$1.0B	$753M	$624M	$362M	$283M	$236M	$186M	$62M	$237M
Capital Expenditures (CapEx)	$896M	$995M	$1.0B	$1.0B	$1.1B	$658M	$525M	$787M	$702M	$577M	$628M	$491M	$431M	$679M	$391M	$177M	$81M	$100M	$173M	$136M	$136M
Free Cash Flow (FCF)	($265M)	($530M)	$306M	$1.3B	$2.3B	$1.7B	$772M	$514M	$707M	$961M	$205M	$587M	$601M	$73M	$233M	$185M	$202M	$136M	$14M	($74M)	$101M
FCF Margin %	-2.4%	-4.7%	2.5%	10.4%	14.5%	14.7%	10.3%	6.3%	8.2%	11.9%	4.0%	13.2%	13.6%	1.9%	6.5%	5.1%	6.4%	5.8%	0.4%	-2.3%	4.1%
Dividends Paid	—	$272M	$264M	$221M	$169M	$145M	$137M	$132M	$120M	$103M	$97M	$92M	$78M	$55M	$286M	$18M	$16M	$15M	$13M	$12M	$9M

USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).

WLK Quarterly Free Cash Flow — Last 8 Quarters

Quarterly cash flow	2026-06-30	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30
Cash from Operations (CFO)	$318M	($94M)	$225M	$182M	$135M	($77M)	$434M	$474M	$237M
Capital Expenditures (CapEx)	$207M	$209M	$241M	$239M	$267M	$248M	$285M	$220M	$231M
Free Cash Flow (FCF)	$111M	($303M)	($16M)	($57M)	($132M)	($325M)	$149M	$254M	$6M
FCF Margin %	3.4%	-11.4%	-0.6%	-2.0%	-4.5%	-11.4%	5.2%	8.2%	0.2%
Dividends Paid	—	$68M	$68M	$68M	$68M	$68M	$67M	$67M	$65M

USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).

WLK Balance Sheet History

Balance sheet	2026-06-30	2025-12-31	2024-12-31	2023-12-31	2022-12-31	2021-12-31	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31	2007-12-31	2006-12-31
Total Assets	$19.4B	$20.0B	$20.8B	$21.0B	$20.6B	$18.5B	$13.8B	$13.3B	$11.6B	$12.1B	$10.9B	$5.6B	$5.2B	$4.1B	$3.4B	$3.3B	$3.0B	$2.4B	$2.3B	$2.6B	$2.1B
Cash & Cash Equivalents	$1.6B	$2.7B	$2.9B	$3.3B	$2.2B	$1.9B	$1.3B	$728M	$753M	$1.5B	$459M	$663M	$881M	$461M	$790M	$826M	$630M	$246M	$90M	$25M	$53M
Total Liabilities	$10.2B	$10.7B	$9.7B	$10.3B	$10.1B	$9.9B	$7.3B	$6.9B	$5.5B	$6.7B	$7.0B	$2.0B	$2.0B	$1.6B	$1.5B	$1.5B	$1.4B	$1.2B	$1.0B	$1.3B	$909M
Total Debt (Short + Long-Term)	$5.9B	$5.7B	$4.6B	$4.9B	$5.0B	$5.2B	$3.6B	$3.6B	$2.7B	$3.8B	$3.8B	$999M	$1.5B	$764M	$764M	$765M	$764M	$515M	$510M	$511M	$260M
Total Shareholders' Equity	$8.7B	$8.8B	$10.5B	$10.2B	$10.5B	$8.0B	$6.6B	$6.4B	$5.6B	$4.9B	$3.5B	$3.6B	$3.2B	$2.4B	$1.9B	$1.8B	$1.5B	$1.3B	$1.2B	$1.3B	$1.2B

USD; $M / $B as marked. Newest period first. Source: public company filings (via Yahoo Finance aggregation).

Quarterly statements, profitability ratios, price history, insider activity and institutional holders are in the interactive WLK viewer.

WLK Metric Deep Dives

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