Grafton Group (OTCMKTS:GROUF – Get Rating) was downgraded by Zacks Investment Research from a “hold” rating to a “strong sell” rating in a research note issued to investors on Monday, Zacks.com reports. According to Zacks, “Grafton Group plc manufactures and retails building supplies. The Company operates the Plumbase, Buildbase, Jackson, MacNaughton Blair, Chadwicks and Woodies […]