Westlake (WLK) Stock Chart & Stock Price History $90.23 +0.12 (+0.13%) As of 11:22 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Westlake Stock Price Performance 5 Day Performance+3.85%1 Month Performance-15.98%3 Month Performance-22.76%6 Month Performance-36.37%Year-To-Date Performance-21.30%1 Year Performance-41.13% Receive WLK Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Westlake and its competitors with MarketBeat's FREE daily newsletter. Email Address WLK Stock Chart for Tuesday, April, 15, 2025 WLK Chart by TradingViewRemove Ads Westlake Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization04/14/2025$89.70$90.11+0.46%$91.87$88.52514,609 shs$11.58 billion04/11/2025$86.88$89.70+3.24%$90.04$85.39654,075 shs$11.52 billion04/10/2025$93.96$86.88-7.53%$92.23$85.05909,673 shs$11.16 billion04/09/2025$82.76$93.96+13.53%$94.53$82.591.57 million shs$12.07 billion04/09/2025$82.76$93.96+13.53%$94.53$82.591.57 million shs$12.07 billion04/08/2025$86.18$82.76-3.97%$90.58$81.411.15 million shs$10.63 billion04/08/2025$86.18$82.76-3.97%$90.58$81.411.15 million shs$10.63 billion04/07/2025$88.54$86.18-2.67%$92.73$82.331.48 million shs$11.07 billion04/04/2025$94.30$88.54-6.10%$91.10$85.311.26 million shs$11.35 billion04/03/2025$101.96$94.30-7.51%$98.22$93.971.12 million shs$12.09 billion Get the Latest News and Ratings for WLK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Westlake and its competitors with MarketBeat's FREE daily newsletter. 04/02/2025$100.02$101.96+1.94%$102.12$98.53503,291 shs$13.07 billion04/01/2025$100.14$100.02-0.12%$100.71$98.47465,955 shs$12.83 billion03/31/2025$99.09$100.14+1.05%$100.91$97.37677,965 shs$12.84 billion03/28/2025$102.93$99.09-3.73%$102.80$98.51856,305 shs$12.71 billion03/27/2025$101.58$102.93+1.33%$103.19$100.37671,812 shs$13.20 billion03/26/2025$100.71$101.58+0.86%$102.18$100.07674,096 shs$13.03 billion03/25/2025$102.76$100.71-2.00%$103.15$100.201.01 million shs$12.91 billion03/24/2025$100.73$102.76+2.02%$103.57$101.25942,846 shs$13.18 billion03/21/2025$101.18$100.73-0.44%$101.08$99.182.59 million shs$12.92 billion03/20/2025$101.82$101.18-0.63%$102.18$99.371.34 million shs$12.97 billion03/19/2025$105.97$101.82-3.92%$105.89$100.101.47 million shs$13.06 billion03/18/2025$107.57$105.97-1.49%$108.15$105.71662,523 shs$13.59 billion03/17/2025$107.39$107.57+0.16%$108.84$106.78919,698 shs$13.79 billion03/14/2025$105.83$107.39+1.47%$107.91$105.89581,274 shs$13.77 billion Related Companies LyondellBasell Industries Stock Price Chart Cabot Stock Price Chart Hawkins Stock Price Chart Kronos Worldwide Stock Price Chart Koppers Stock Price Chart Tredegar Stock Price Chart International Flavors & Fragrances Stock Price Chart NewMarket Stock Price Chart Sensient Technologies Stock Price Chart Methanex Stock Price Chart Receive WLK Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Westlake and its competitors with MarketBeat's FREE daily newsletter. 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