Powered by strong returns for shares of Boeing and Apple Inc., the Dow Jones Industrial Average is climbing Wednesday morning. The Dow DJIA, +0.55% was most recently trading 159 points higher (0.5%), as shares of Boeing BA, +4.87% and Apple Inc. AAPL, +1.39% have contributed around a quarter of the blue-chip gauge’s intraday rally. Boeing’s shares have risen $9.51, or 4.4%, while those of Apple Inc. have risen $2.29, or 1.6%, combining for a roughly 78-point bump for the Dow. Other components contributing significantly to the gain include Nike NKE, +1.56%, Visa V, +1.01%, and Merck MRK, +1.24%. A $1 move in any of the Dow’s 30 components equates to a 6.58-point swing.