Stock market today: Dow, S&P 500, Nasdaq sink as AI valuation concerns mount amid bleak jobs data

Market Overview - US stocks experienced a significant decline, with the Nasdaq Composite falling 1.6%, the S&P 500 down 0.9%, and the Dow Jones Industrial Average decreasing by approximately 0.8% due to ongoing concerns regarding Big Tech and negative job data [1] Job Market Insights - The Challenger, Gray & Christmas report indicated that October saw the highest number of layoff announcements since 2003, marking a challenging month for the job market [2] Technology Sector Performance - Qualcomm reported strong earnings and positive guidance, yet its stock dropped over 4%, indicating investor disappointment. Other major chip manufacturers, including Nvidia and AMD, also saw declines of over 2% and 6% respectively, raising questions about tech valuations [3] Tesla's Shareholder Meeting - Tesla's upcoming shareholder meeting is set to focus on Elon Musk's proposed trillion-dollar pay package, with potential implications for his role as CEO if the plan is rejected. Investors are closely monitoring this event for its impact on the performance of major tech stocks, referred to as the "Magnificent Seven" [4] Trade Policy Developments - The market is reacting to skepticism from Supreme Court justices regarding the legality of Trump's trade tariffs, which could significantly affect international trade and domestic spending if ruled against [5] Aviation Industry Impact - The FAA's decision to cut 10% of flights at 40 airports due to a federal shutdown, which has lasted over six weeks, is expected to exacerbate travel disruptions amid staffing shortages [6] Earnings Reports - Notable earnings reports from Warner Bros. Discovery, Airbnb, and Moderna are anticipated, which may influence market sentiment [7]