Nvidia Q4 Earnings Report: Nvidia, the California-based technology giant, reported a significant surge in fourth-quarter profit and sales on Wednesday, driven by soaring demand for its new Blackwell chips, which are at the heart of the latest artificial intelligence (AI) systems. The company’s earnings sent its stock higher in after-hours trading, underscoring Nvidia’s continued dominance in the AI hardware space. For the three months ending January 26, Nvidia posted revenue of $39.3 billion, a 12 per cent increase from the previous quarter and a remarkable 78 per cent jump from the same period a year earlier. Adjusted for one-time items,...