Intel Stock Drops Significantly Following Weak Forecast and AI Investment Worries

Intel Corp's stock plummeted 29% on October 30, 2026, marking its largest decline in over four decades. This sharp drop followed a disappointing fourth-quarter earnings forecast that missed market expectations, compounded by a slump in the PC market and an incident at an Israeli factory. Investor concerns about the substantial capital expenditure in AI infrastructure and the timeline for returns intensified, leading to a broader sell-off across major semiconductor stocks including Qualcomm, AMD, and Nvidia.