US Tech Stocks Decline Amid AI Investment Concerns

U.S. stock markets experienced a significant sell-off, with the Nasdaq Composite dropping over 3% and the S&P 500 falling 1.9%, marking their worst day since June. This decline was primarily driven by disappointing earnings and weak guidance from major technology companies like Intel and Amazon. The results reignited investor concerns about whether substantial investments in artificial intelligence will deliver anticipated returns, causing the Cboe Volatility Index to surge over 32%.