By MarketWatch Automation
Powered by strong returns for shares of Apple Inc. and American Express, the Dow Jones Industrial Average is up Monday morning. The Dow /zigman2/quotes/210598065/realtime DJIA +0.40% was most recently trading 224 points (0.8%) higher, as shares of Apple Inc. /zigman2/quotes/202934861/composite AAPL +1.32% and American Express /zigman2/quotes/203805826/composite AXP +0.65% have contributed to the index's intraday rally. Apple Inc.'s shares are up $2.99 (2.7%) while those of American Express have risen $2.12, or 2.0%, combining for a roughly 34-point bump for the Dow. Also contributing significantly to the gain are Visa /zigman2/quotes/203660239/composite V +0.37% , Microsoft /zigman2/quotes/207732364/composite MSFT +0.20% , and Salesforce.com Inc. /zigman2/quotes/200515854/composite CRM +0.38% . A $1 move in any one of the 30 components of the Dow equates to a 6.58-point swing.