The Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA +0.23% is heading for a unanimous decline Tuesday, as all 30 components of the blue-chip barometer are trading lower in the premarket. The biggest decliners are share of Apple Inc. /zigman2/quotes/202934861/composite AAPL +0.96% , down 1.5%, Walt Disney Co. /zigman2/quotes/203410047/composite DIS -1.13% , down 1.3% and Boeing Co. /zigman2/quotes/208579720/composite BA -1.01% , down 1.2%. The best performer is Dow Inc.'s stock /zigman2/quotes/203121064/composite DOW +0.89% , which was down less than 0.1%. Meanwhile, Dow futures /zigman2/quotes/210407078/delayed YM00 +0.13% shed 196 points, or 0.6%, ahead of the open, after surging 626 points, or 2.0%, on Monday.













