By MarketWatch Automation
The Dow Jones Industrial Average is slumping Wednesday afternoon with shares of Visa and Salesforce.com Inc. facing the biggest setback for the blue-chip average. The Dow /zigman2/quotes/210598065/realtime DJIA -0.58% was most recently trading 802 points, or 2.9%, lower, as shares of Visa /zigman2/quotes/203660239/composite V +0.58% and Salesforce.com Inc. /zigman2/quotes/200515854/composite CRM -5.37% have contributed to the blue-chip gauge's intraday decline. Visa's shares have dropped $9.93, or 5.2%, while those of Salesforce.com Inc. are down $11.37, or 4.5%, combining for an approximately 140-point drag on the Dow. Other components contributing significantly to the decline include Nike /zigman2/quotes/203439053/composite NKE +0.62% , Caterpillar /zigman2/quotes/203434128/composite CAT -1.28% , and Microsoft /zigman2/quotes/207732364/composite MSFT +0.0047% . A $1 move in any one of the 30 components of the index equates to a 6.58-point swing.