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

Market Overview - US stocks experienced a significant decline, with the Nasdaq Composite falling approximately 2%, the S&P 500 down 1.2%, and the Dow Jones Industrial Average decreasing nearly 1%, equating to a loss of almost 500 points [1] Employment Data - The Challenger, Gray & Christmas report indicated that October saw the highest number of layoff announcements since 2003, raising concerns about the labor market's health amid a government data blackout due to a federal shutdown [2] Technology Sector - Investors are evaluating whether technology valuations are excessively high, as evidenced by Qualcomm's strong earnings and positive guidance, yet its stock dropped over 4%. Other major chip manufacturers, including Nvidia and AMD, also saw declines of over 4% and 7%, respectively [3] Tesla Developments - Tesla's shareholder meeting is under scrutiny, particularly regarding Elon Musk's proposed trillion-dollar pay package, which could influence his position as CEO if rejected. Tesla shares fell nearly 5% on the day [4] Trade Policy Implications - The market reacted 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. Treasury Secretary Scott Bessent expressed optimism about the tariffs [5] Earnings Reports - Notable earnings reports from Warner Bros. Discovery, Airbnb, and Moderna were highlighted as key events in the market on Thursday [5]