Yahoo Finance·2025-10-08 03:12Market Performance - Wall Street experienced a rise, with the S&P 500 climbing 0.6% to set a new all-time high, while the Dow Jones Industrial Average saw a slight decline of less than 0.1% and the Nasdaq composite increased by 1.1% to reach its own record [1] - Trading activity has been muted due to the recent U.S. government shutdown, which delayed the release of key economic reports that typically influence market movements [2] AI Sector Growth - Advanced Micro Devices (AMD) surged by 11.4% following the announcement of an AI-related deal, making it the best-performing stock in the S&P 500 [3] - Dell Technologies also saw a significant increase of 9.1% as it highlighted growth opportunities in AI [3] - Poet Technologies rose by 17% after announcing a $75 million investment to accelerate growth in the AI market [4] - AI-related stocks have shown remarkable performance, with Nvidia up nearly 41%, Oracle increasing by 73.2%, and Palantir Technologies more than doubling with a 143% surge [4] Market Valuation Concerns - There is growing criticism regarding the high valuations of AI stocks, reminiscent of the dot-com bubble in 2000, which ultimately led to a significant market correction [5] - The Bank of England has warned of the rising risk of a sudden correction in tech stock prices driven by the AI boom, noting that equity market valuations appear stretched, particularly for AI-focused technology companies [5]