By MarketWatch Automation
Behind strong returns for shares of Caterpillar and JPMorgan Chase, the Dow Jones Industrial Average is trading up Wednesday morning. Shares of Caterpillar /zigman2/quotes/203434128/composite CAT -0.27% and JPMorgan Chase /zigman2/quotes/205971034/composite JPM -0.65% are contributing around a quarter of the blue-chip gauge's intraday rally, as the Dow /zigman2/quotes/210598065/realtime DJIA -0.94% is trading 97 points higher (0.3%). Caterpillar's shares have risen $8.35, or 4.5%, while those of JPMorgan Chase have climbed $4.51, or 3.6%, combining for a roughly 85-point boost for the Dow. American Express /zigman2/quotes/203805826/composite AXP -1.89% , Goldman Sachs /zigman2/quotes/209237603/composite GS +0.05% , and Dow Inc. /zigman2/quotes/203121064/composite DOW -1.98% are also contributing significantly to the gain. A $1 move in any of the index's 30 components equates to a 6.58-point swing.