UPDATE: Disclosure Insight Upgrades Koppers Holdings to Medium Risk Positive Bias

A report from Disclosure Insight upgrades its rating from Medium Risk Negative Bias to Medium Risk Positive Bias on Koppers Holdings (NYSE: KOP).

The report states, “We are changing our rating from Medium Risk - Negative Bias to Medium Risk - Positive Bias due stability in the executive suite since a Sep-10 CFO change. Concentrated revenue and ongoing litigation support our opinion of a Medium Risk - Positive Bias rating on KOP. The company's two largest customers accounted for 9.6% and 8.0% of 2010 net sales.”

KOP closed yesterday at $32.18.