Westlake Chemical traded at $89.42 this Friday September 5th, increasing $1.78 or 2.03 percent since the previous trading session. Looking back, over the last four weeks, Westlake Chemical gained 10.23 percent. Over the last 12 months, its price fell by 33.77 percent. Looking ahead, we forecast Westlake Chemical to be priced at 88.68 by the end of this quarter and at 86.49 in one year, according to Trading Economics global macro models projections and analysts expectations.