US stocks treaded water on Wednesday as investors digested the Federal Reserve's preferred inflation gauge, the core personal consumption expenditures price index, which rose 0.2% in line with expectations. The S&P 500 Index was steady in New York, while the technology-heavy Nasdaq 100 Index also showed little change. Market focus is now shifting toward earnings from chipmaking giant Nvidia Corp., with investors awaiting further guidance on the tech sector's trajectory.