By MarketWatch Automation
Led by positive gains for shares of Salesforce.com Inc. and Caterpillar, the Dow Jones Industrial Average is up Tuesday morning. Shares of Salesforce.com Inc. /zigman2/quotes/200515854/composite CRM -0.47% and Caterpillar /zigman2/quotes/203434128/composite CAT +0.36% are contributing to the index's intraday rally, as the Dow /zigman2/quotes/210598065/realtime DJIA +0.48% is trading 22 points (0.1%) higher. Salesforce.com Inc.'s shares are up $8.86 (3.7%) while those of Caterpillar are up $4.60, or 2.3%, combining for an approximately 89-point bump for the Dow. Also contributing significantly to the gain are JPMorgan Chase /zigman2/quotes/205971034/composite JPM +0.74% , Boeing /zigman2/quotes/208579720/composite BA -1.17% , and Chevron /zigman2/quotes/205871374/composite CVX -0.44% . A $1 move in any of the index's 30 components equates to a 6.58-point swing.