The three major U.S. stock indices opened higher, with the Dow rising 0.5% and UnitedHealth increasing by 9.4%

According to Gate market data, the three major U.S. stock indices opened higher, with the Dow Jones Industrial Average rising by 0.5%, the S&P 500 index increasing by 0.28%, and the Nasdaq Composite index up by 0.27%. UnitedHealth (UNH.N) saw an increase of 9.4%, with first-quarter earnings exceeding expectations. Amazon (AMZN.O) rose by 2.1%, in relation to an upgraded partnership with Anthropic. Apple (AAPL.O) fell by 0.3%, as Cook will step down as CEO, with Tenus taking over.