The Dow Jones Industrial Average is trading up Tuesday morning with shares of Boeing and Chevron leading the way for the blue-chip average. Shares of Boeing BA, +2.18% and Chevron CVX, +1.33% have contributed to the blue-chip gauge’s intraday rally, as the Dow DJIA, -0.16% is trading 128 points, or 0.4%, higher. Boeing’s shares are up $4.50 (2.2%) while those of Chevron have risen $1.58, or 1.9%, combining for a roughly 40-point boost for the Dow. Dow Inc. DOW, +0.24%, Goldman Sachs GS, +1.15%, and Apple Inc. AAPL, +1.26% are also contributing significantly to the gain. A $1 move in any one of the 30 components of the index results in a 6.58-point swing.