US Tech Stocks Rally on AI Optimism Ahead of Trump-Xi Summit

US technology stocks posted significant gains as market optimism around artificial intelligence deployment continued to drive investor appetite for the sector. The S&P 500 and Nasdaq indices both climbed, reflecting renewed confidence in tech-related equities and the companies positioned to benefit from the ongoing AI expansion.

AMD became the latest major chipmaker to achieve a $1 trillion market capitalization, underscoring strong investor interest in semiconductor companies central to AI infrastructure development. The milestone reflects sustained demand for computing power required to train and deploy advanced AI systems across commercial applications.

Market participants are also monitoring this week's high-level diplomatic engagement between US and Chinese officials, including discussions involving President Trump and Chinese President Xi Jinping. Officials involved in the talks have signalled constructive dialogue on key issues including artificial intelligence policy, trade relations, and cross-border investment frameworks.

The convergence of positive sentiment around AI sector fundamentals and expectations for diplomatic progress on US-China relations has bolstered broader market confidence. Investors remain focused on potential policy developments and regulatory approaches toward artificial intelligence that could emerge from the leadership-level discussions.