The Dow Jones Industrial Average is trading up Tuesday morning with shares of Dow Inc. and American Express delivering strong returns for the index. The Dow /zigman2/quotes/210598065/realtime DJIA +1.34% is trading 160 points (0.6%) higher, as shares of Dow Inc. /zigman2/quotes/203121064/composite DOW -0.80% and American Express /zigman2/quotes/203805826/composite AXP +0.85% are contributing to the index's intraday rally. Dow Inc.'s shares are up $1.67 (4.3%) while those of American Express are up $3.20, or 3.3%, combining for a roughly 33-point bump for the Dow. Other components contributing significantly to the gain include Caterpillar /zigman2/quotes/203434128/composite CAT +0.53% , Exxon Mobil /zigman2/quotes/204455864/composite XOM +0.93% , and Chevron /zigman2/quotes/205871374/composite CVX +0.04% . A $1 move in any of the benchmark's 30 components equates to a 6.86-point swing.