Global technology shares rallied on Nov. 20, 2025 as investors rotated back into AI-linked stocks following AI behemoth NVIDIA’s upbeat results. The tech space has been seesawing for quite some time now as investors went skeptical about the rising overvaluation concerns in the AI sector.  NVIDIA’s upbeat earnings hit the market at a time when investors are anxious about overvaluation concerns in the AI sector. Matt Britzman, senior equity analyst at Hargreaves Lansdown believes that while AI valuations in c ...