Shares of Cisco and Walmart are posting losses Wednesday morning, dragging the Dow Jones Industrial Average into negative territory. The Dow DJIA, -0.36% was most recently trading 127 points (0.4%) lower, as shares of Cisco CSCO, -5.34% and Walmart WMT, -1.39% are contributing to the index’s intraday decline. Cisco’s shares are down $2.54 (5.3%) while those of Walmart have fallen $2.01 (1.4%), combining for a roughly 30-point drag on the Dow. Also contributing significantly to the decline are Boeing BA, -1.32%, Walt Disney DIS, -1.07%, and Salesforce.com Inc. CRM, -1.10%. A $1 move in any one of the 30 components of the index equates to a 6.58-point swing.