TradingKey – At the close on October 29 Eastern Time, Intel (INTC) stock fell 3.62% to close at $92.07. Shortly thereafter, after Intel released its third-quarter 2026 earnings report, its stock plunged 23.03% in after-hours trading. The report showed that although third-quarter revenue and adjusted earnings per share both exceeded market expectations, fourth-quarter guidance fell significantly short of Wall Street forecasts, which, coupled with PC market weakness, manufacturing supply constraints, and cash flow pressure, caused the stock to tumble post-market.