US Stock Market Today | Dow Jones | Nasdaq Live: S&P 500, Nasdaq rise as chip stocks gain ahead of Nvidia results

08:20:00 PM IST, 20 May 2026US Stock Market Today | Dow Jones | Nasdaq Live: Nvidia earnings seen as key test for chip rally amid AI boomNvidia’s upcoming results are viewed as a crucial catalyst for the semiconductor rally, with investors watching for guidance on the durability of AI-driven growth. While strong demand from Big Tech and robust earnings across chipmakers support optimism, elevated valuations and recent market volatility have raised concerns about sustainability. Despite rapid growth and dominant market share, Nvidia faces rising competition and slowing expansion ahead. Markets are focused less on quarterly performance and more on long-term demand visibility, with expectations that commentary on future chip adoption could shape sentiment across the sector.