The Dow Jones Industrial Average is rallying Tuesday morning with shares of Dow Inc. and American Express seeing positive momentum for the index. The Dow /zigman2/quotes/210598065/realtime DJIA -0.07% was most recently trading 362 points, or 1.6%, higher, as shares of Dow Inc. /zigman2/quotes/203121064/composite DOW -0.28% and American Express /zigman2/quotes/203805826/composite AXP -3.05% have contributed around 25% of the index's intraday rally. Dow Inc.'s shares are up $3.00, or 9.8%, while those of American Express are up $5.05 (6.0%), combining for an approximately 55-point boost for the Dow. Other components contributing significantly to the gain include Exxon Mobil /zigman2/quotes/204455864/composite XOM +0.95% , 3M /zigman2/quotes/205029460/composite MMM -0.24% , and Chevron /zigman2/quotes/205871374/composite CVX +0.91% . A $1 move in any of the Dow's 30 components results in a 6.86-point swing.