Marvell Technology Group is trading 6.7% up at $289.49, driven by positive revelations from its Investor Day. * The October 6 Investor Day, focused on AI and data-center infrastructure, highlighted strong custom silicon revenue projections and expanding cloud partnerships. * Management provided greater clarity on the expansion of custom AI chip programs, with analysts anticipating potential increases to the FY29 AI revenue outlook and discussions around the significant Google deal. * The gain significantly exceeds major U.S. indexes’ roughly 0.5% advances.