Behind losses for shares of Apple Inc. and Microsoft, the Dow Jones Industrial Average is falling Friday morning. Shares of Apple Inc. AAPL, -1.72% and Microsoft MSFT, -1.87% are contributing to the index’s intraday decline, as the Dow DJIA, -0.49% was most recently trading 110 points, or 0.4%, lower. Apple Inc.’s shares have dropped $2.15, or 1.8%, while those of Microsoft are off $3.90, or 1.8%, combining for an approximately 40-point drag on the Dow. Also contributing significantly to the decline are Salesforce.com Inc. CRM, -1.69%, UnitedHealth UNH, -1.67%, and Walt Disney DIS, -1.18%. A $1 move in any of the index’s 30 components results in a 6.58-point swing.