The Dow Jones Industrial Average is declining Thursday afternoon with shares of Boeing and American Express seeing the biggest losses for the price-weighted average. Shares of Boeing BA, -4.83% and American Express AXP, -3.84% have contributed to the index’s intraday decline, as the Dow DJIA, -0.33% was most recently trading 259 points (0.8%) lower. Boeing’s shares are down $7.43 (5.7%) while those of American Express are down $7.32 (4.6%), combining for a roughly 97-point drag on the Dow. Other components contributing significantly to the decline include Apple Inc. AAPL, -2.69%, Microsoft MSFT, -2.00%, and UnitedHealth UNH, -1.51%. A $1 move in any of the Dow’s 30 components equates to a 6.59-point swing.