US stocks ended higher on Wednesday after the Federal Reserve held interest rates steady, as expected, while investors assessed the central bank's economic outlook and looked ahead to quarterly results from Microsoft and Alphabet, Reuters reported. The gains came as chipmakers recovered from a recent selloff, with strong results from South Korean chipmaker SK Hynix supporting optimism around demand for artificial intelligence infrastructure.The Dow Jones Industrial Average rose 126.21 points, or 0.24%, to 52,503.78. The S&P 500 gained 0.33% to 7,748.03, while the Nasdaq Composite advanced 0.32% to 26,561.24. For Highlights on US Markets, click hereFed holds rates as December…