Westlake Corporation (WLK) Stock

Westlake Corporation (WLK) is a Materials stock trading at $80.30 (as of 2026-06-18), with a market capitalization of $11.12B and a trailing P/E of -6.9. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Westlake Corporation manufactures and supplies petrochemicals, polymers, and building products worldwide through the Performance and Essential Materials segment and the Housing and Infrastructure Products segment. Its customers include chemical processors, plastics fabricators, construction contractors, municipalities, and supply warehouses serving residential construction and other consumer and industrial markets.

Valuation — source: SEC EDGAR (first-party)
Price$80.30
Market Cap$11.12B
P/E Ratio-6.9
EV / EBITDA-26.9
Price / Book1.24
Price / Sales1.02
Dividend Yield2.4%
DCF Value (model)$-92.77
DCF Upside vs Price-215.5%
Profitability & Growth — source: SEC EDGAR
Revenue (TTM)$11.17B
Net Margin-13.5%
Return on Equity-18.1%
Debt / Equity0.62
Current Ratio2.17
Revenue Growth (YoY)-8.0%
EPS Growth (YoY)-351.1%
FCF Growth (YoY)-273.2%
Financial Health — source: SEC EDGAR
Altman Z-Score1.69 (distress)
Piotroski F-Score3/9 (weak)
Valuation vs Sector & Industry
Stock P/E-6.9
Sector P/E (Materials)25.3
Industry P/E (Chemicals)36.5
vs Sector-127.3%
vs Industry-118.9%
Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional HolderOrbis Allan Gray Ltd ($618.39M)
Institutional Holders Tracked10
Congressional Trades (recent)3
Company
SectorMaterials
IndustryChemicals
CEOJean-Marc Gilson
Employees15,540
CountryUS
IPO Date2004-08-12

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WLK earnings history · WLK institutional & insider holders · Congress trades · Insider trades · Short interest · Stock screener

Data as of 2026-06-18.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.