By MarketWatch Automation
Dragged down by losses for shares of Merck and Visa, the Dow Jones Industrial Average is falling Tuesday afternoon. Shares of Merck /zigman2/quotes/209956077/composite MRK +0.62% and Visa /zigman2/quotes/203660239/composite V -0.43% are contributing to the index's intraday decline, as the Dow /zigman2/quotes/210598065/realtime DJIA -0.39% was most recently trading 95 points, or 0.3%, lower. Merck's shares have declined $2.37, or 2.8%, while those of Visa have dropped $5.15, or 2.4%, combining for a roughly 50-point drag on the Dow. Other components contributing significantly to the decline include Walt Disney /zigman2/quotes/203410047/composite DIS -0.87% , Microsoft /zigman2/quotes/207732364/composite MSFT -2.70% , and Salesforce.com Inc. /zigman2/quotes/200515854/composite CRM -3.50% . A $1 move in any one of the 30 components of the index results in a 6.58-point swing.