Behind losses for shares of Boeing and Dow Inc., the Dow Jones Industrial Average is down Tuesday afternoon. The Dow DJIA, -0.35% was most recently trading 73 points (0.2%) lower, as shares of Boeing BA, -3.59% and Dow Inc. DOW, -3.64% have contributed to the index’s intraday decline. Boeing’s shares are off $8.56, or 3.4%, while those of Dow Inc. are off $2.16 (3.4%), combining for a roughly 71-point drag on the Dow. Other components contributing significantly to the decline include Caterpillar CAT, -2.83%, American Express AXP, -2.71%, and Intel INTC, -2.34%. A $1 move in any one of the 30 components of the Dow equates to a 6.58-point swing.