Powered by strong returns for shares of Verizon Communications Inc. and Chevron, the Dow Jones Industrial Average is up Wednesday afternoon. The Dow is trading 77 points, or 0.2%, higher, as shares of Verizon Communications Inc. and Chevron are contributing to the blue-chip gauge’s intraday rally. Verizon Communications Inc.’s shares are up $2.83, or 5.2%, while those of Chevron are up $2.70, or 2.9%, combining for a roughly 36-point bump for the Dow. Home Depot Merck and Nike are also contributing significantly to the gain. A $1 move in any of the benchmark’s 30 components results in a 6.58-point swing.