US stock market ends longest calm streak since pandemic as AI trade sinks

US stock market: The US stock market is a collection of equity exchanges and publicly traded companies, commonly represented by benchmarks such as the S&P 500, Nasdaq Composite, and Dow Jones Industrial Average. In the reported event, the S&P 500 fell sharply as concerns about the sustainability of artificial-intelligence investments and rising consumer prices ended its extended period without a major daily decline. AI trade: Recent selling has focused on AI-linked technology and semiconductor shares amid questions about whether high spending and valuations can be justified by future revenue and profits. Inflation: A recent consumer-price report showing the fastest increase in prices since April added pressure to equities and intensified concerns about interest rates. Volatility: The S&P 500 ended a 53-session run without a daily decline of at least one percent, ending its longest such calm streak since early 2020.