Shares of Chicago-based Boeing Co. slipped Tuesday after two analysts downgraded their outlook for the aircraft maker’s stock. An “underperform” rating by The Buckingham Research Group is the first such rating for Boeing’s stock since 2009, Reuters reports.
Boeing shares slip after first 'underperform' rating since 2009 http://t.co/W2kCTmuHHp
— Reuters Business (@ReutersBiz) September 2, 2014