US stocks today: S&P 500, Nasdaq open higher as SK Hynix lifts chips; Fed meet in focus

On Wednesday, the S&P 500 and Nasdaq opened higher after positive results from memory-chip firms like SK Hynix. Investors are now focused on upcoming key corporate earnings, seen as a test for AI trade. Meanwhile, the Dow Jones Industrial Average experienced a slight decline of 42.1 points at the open. The S&P 500 gained 13.0 points, bolstered by positive market sentiment.