Stock market today: Nasdaq leads Dow, S&P 500 higher as AMD surges on OpenAI deal, shutdown drags on

Group 1 - US stocks experienced a rise, with the Nasdaq Composite leading at a 0.5% increase, driven by a nearly 35% surge in AMD shares following a significant deal with OpenAI [1][2][3] - AMD signed a multiyear agreement with OpenAI to supply chips, projected to generate tens of billions of dollars in annual revenue, and offers OpenAI the option to acquire up to 10% of AMD [2] - The AI sector remains a focal point for investors, with expectations for positive developments despite the ongoing government shutdown affecting key economic data releases [3] Group 2 - International markets showed mixed reactions, with France's CAC 40 declining due to political instability, while Japan's Nikkei 225 surged nearly 5% amid a leadership change [4] - Investors on Wall Street are awaiting insights on potential interest rate cuts, with key speeches from Federal Reserve officials scheduled [5] - Upcoming third-quarter earnings reports from major companies like PepsiCo, Delta Air Lines, and Levi Strauss are anticipated this week [6]