Shares of Visa and Microsoft are trading lower Monday morning, sending the Dow Jones Industrial Average into negative territory. Shares of Visa V, -3.25% and Microsoft MSFT, -2.54% have contributed to the index’s intraday decline, as the Dow DJIA, -0.88% was most recently trading 90 points, or 0.3%, lower. Visa’s shares have fallen $6.80 (3.0%) while those of Microsoft are down $6.06 (2.1%), combining for an approximately 85-point drag on the Dow. Other components contributing significantly to the decline include Salesforce.com Inc. CRM, -2.56%, Apple Inc. AAPL, -2.27%, and Walt Disney DIS, -0.95%. A $1 move in any of the Dow’s 30 components results in a 6.58-point swing.