Shares of American Express and UnitedHealth are trading higher Thursday afternoon, leading the Dow Jones Industrial Average rally. Shares of American Express /zigman2/quotes/203805826/composite AXP +1.37% and UnitedHealth /zigman2/quotes/210453738/composite UNH +2.94% have contributed to the blue-chip gauge's intraday rally, as the Dow /zigman2/quotes/210598065/realtime DJIA +2.13% is trading 296 points, or 1.3%, higher. American Express's shares have climbed $5.66, or 7.3%, while those of UnitedHealth are up $12.62 (4.5%), combining for an approximately 125-point bump for the Dow. Also contributing significantly to the gain are Cisco /zigman2/quotes/209509471/composite CSCO +0.72% , JPMorgan Chase /zigman2/quotes/205971034/composite JPM +0.57% , and Dow Inc. /zigman2/quotes/203121064/composite DOW +2.91% . A $1 move in any of the index's 30 components results in a 6.86-point swing.