Date,Symbol,Name,Last Sale,Net Change,% Change,Market Cap,Country,IPO Year,Volume,Sector,Industry 20250729,WLK,Westlake Corporation Common Stock,$85.13,-0.68,-0.792%,10916902302.0,United States,2004.0,1725920,Industrials,Major Chemicals 20250730,WLK,Westlake Corporation Common Stock,$79.65,-5.48,-6.437%,10214157974.0,United States,2004.0,1640568,Industrials,Major Chemicals 20250731,WLK,Westlake Corporation Common Stock,$79.30,-0.35,-0.439%,10169274669.0,United States,2004.0,1419250,Industrials,Major Chemicals