Buoyed by positive growth for shares of Dow Inc. and Caterpillar, the Dow Jones Industrial Average is up Wednesday morning. Shares of Dow Inc. DOW, +3.55% and Caterpillar CAT, +2.25% have contributed to the index’s intraday rally, as the Dow DJIA, +0.18% was most recently trading 95 points, or 0.3%, higher. Dow Inc.’s shares are up $2.26 (3.6%) while those of Caterpillar are up $4.43, or 2.0%, combining for an approximately 44-point bump for the Dow. Other components contributing significantly to the gain include McDonald’s MCD, +1.43%, Amgen Inc. AMGN, +1.06%, and 3M MMM, +1.22%. A $1 move in any one of the 30 components of the Dow results in a 6.58-point swing.