3M Stock Rises on Upgrade. Why This Analyst Likes Its Transformation. — Barrons.com

By Al Root3M stock rose early Friday after catching an upgrade. It isn't an upgrade to Buy, though.Bernstein analyst Varun Govindaraj upgraded shares to the equivalent of Hold from Sell. His price target went to $171 from $145.3M stock was up 0.6% in early trading at $168.85, while the S&P 500 and…