3M Co.'s stock tumbled 7.3% in afternoon trade, making prices cheap enough to get CFRA analyst Jim Corridore to turn bullish on the maker of industrial and consumer products. The stock's selloff comes after the company reported in line first-quarter results, but trimmed its full-year outlook. The stock's tumble took it into bear-market territory for the first time since January 2012, as it has fallen more than 20% (22.7%) from its Jan. 26 record close of $258.63. Corridore raised his rating to buy from hold, while keeping his stock price target at $260. "Given the recent pullback in the shares, we see the stock as attractively valued," Corridore wrote in a note to clients. "Overall, we see [3M] as a well run company with leading positions in many of its sectors, and likely to see improved revenue and EPS momentum over the next two years." The stock has slumped 15% year to date, while the Dow Jones Industrial Average has shed 3.2%.