Behind strong returns for shares of Boeing and American Express, the Dow Jones Industrial Average is trading up Monday morning. Shares of Boeing /zigman2/quotes/208579720/composite BA +0.27% and American Express /zigman2/quotes/203805826/composite AXP +0.30% have contributed about a quarter of the blue-chip gauge's intraday rally, as the Dow /zigman2/quotes/210598065/realtime DJIA +0.36% was most recently trading 66 points higher (0.3%). Boeing's shares have gained $6.53 (4.5%) while those of American Express are up $2.43 (2.6%), combining for a roughly 61-point bump for the Dow. Also contributing significantly to the gain are Goldman Sachs /zigman2/quotes/209237603/composite GS -0.09% , Raytheon Technologies Corp. /zigman2/quotes/203237915/composite RTX +0.29% , and JPMorgan Chase /zigman2/quotes/205971034/composite JPM +0.32% . A $1 move in any of the Dow's 30 components results in a 6.86-point swing.