Koppers traded at $28.87 this Friday September 5th, increasing $0.25 or 0.87 percent since the previous trading session. Looking back, over the last four weeks, Koppers gained 11.00 percent. Over the last 12 months, its price fell by 21.16 percent. Looking ahead, we forecast Koppers to be priced at 28.63 by the end of this quarter and at 27.92 in one year, according to Trading Economics global macro models projections and analysts expectations.