Shares of technology companies fell as lofty expectations around AI met potential headwinds from rocky negotiations to end Middle East tensions. New Nasdaq-100 components CoreWeave and Rocket Lab faced steep pullbacks in their first day in the tech-heavy index.

Memory-chip maker SK Hynix has overtaken Samsung Electronics to become South Korea's most valuable company amid the artificial-intelligence-driven chip boom. Shares of SK Hynix closed 5.6% higher on Monday, lifting its market capitalization to 2.080 quadrillion won ($1.362 trillion). Samsung shares ended 0.1% lower, taking its market value to 2.067 quadrillion won based on shares outstanding.

Chinese robotics company Coowa is gearing up to go public in Hong Kong, people familiar with the matter said, joining the wave of robotics and tech companies raising capital in the city. The SoftBank Group-backed company's valuation stood at more than $3 billion after it raised more than $600 million in its latest funding round, the people said.

Super Micro shares rose as the server manufacturer showcased its new Data Center Building Block Solutions blueprint for high-performance computing to kick off the ISC High Performance Conference in Hamburg, Germany. The infrastructure is optimized for Nvidia's Vera Rubin NVL4 platform.