W.R. Grace & Co. (GRA)

photo-12W.R. Grace's stock value rose more than 25 percent in early December, but the stock has leveled off since then. Grace is now facing a certified class action in Washington state over its tremolite-containing Zonolite Attic Insulation. The prospect of similar suits against the company is looming after the federal courts established MDL 1376 - In re Zonolite Attic Insulation Products Liability Litigation in Boston.