US stock markets surged to record highs as strong corporate earnings results fueled investor optimism across major indices. The rally was particularly pronounced in technology stocks, with semiconductor companies leading gains following positive guidance from Advanced Micro Devices.

AMD's latest forecast sparked a broader rally in AI-related chipmaker stocks, as the company projected continued strength in artificial intelligence demand. The semiconductor sector's performance contributed significantly to the overall market advance, with multiple chip stocks posting substantial premarket gains.

Supporting the positive market sentiment, new employment data showed private payrolls increased by 109,000 jobs in April, according to ADP's monthly report. The figure exceeded economist expectations and marked the strongest job growth since early 2025, suggesting continued resilience in the US labor market.

Several individual stocks made notable premarket moves, including AMD, Disney, Uber, Corning, and Super Micro Computer, reflecting the broad-based nature of the market rally. The combination of strong earnings reports and encouraging economic data provided multiple catalysts for the advance.

Meanwhile, international markets also showed strength, with South Korea's stock market posting particularly impressive gains. The Korean market has risen approximately 75% year-to-date in 2026, outpacing most global indices and demonstrating robust investor appetite for Asian equities.

The convergence of positive corporate earnings, encouraging employment data, and strong AI-sector performance created a favorable environment for risk assets, with investors showing renewed confidence in both domestic and international equity markets.