Key Takeaways 3M shares rose over 2% Friday, leading gains on the Dow after Bank of America (BofA) analysts upgraded 3M stock, citing optimism about the company's direction under new CEO Bill Brown. The analysts raised their rating of 3M's stock to "buy" from "neutral," with a price target of $120, up from their earlier$105. BofA suggested 3M can better focus on improving its operations, with major lawsuits settled and its health-care business spun off. 3M (MMM) was the best-performing stock on the Dow Jon ...