By MarketWatch Automation
Shares of UnitedHealth and Amgen Inc. are posting strong returns Thursday morning, propelling the Dow Jones Industrial Average into positive territory. The Dow /zigman2/quotes/210598065/realtime DJIA +1.49% was most recently trading 212 points higher (0.6%), as shares of UnitedHealth /zigman2/quotes/210453738/composite UNH +1.47% and Amgen Inc. /zigman2/quotes/209157011/composite AMGN +1.00% have contributed about one third of the blue-chip gauge's intraday rally. UnitedHealth's shares have gained $12.17, or 3.2%, while those of Amgen Inc. have gained $5.64 (2.3%), combining for a roughly 117-point bump for the Dow. Other components contributing significantly to the gain include Apple Inc. /zigman2/quotes/202934861/composite AAPL +2.62% , Visa /zigman2/quotes/203660239/composite V +1.17% , and Microsoft /zigman2/quotes/207732364/composite MSFT +2.49% . A $1 move in any of the benchmark's 30 components results in a 6.58-point swing.