Marvell Technology is trading 4.15% down at ARS 29,120.00 on September 29, 2026, amid semiconductor weakness and AI-chip demand concerns. - OpenAI paused training its most capable models after a security incident, renewing AI-chip demand concerns. - Higher yields and oil amid U.S.–Iran tensions also pressured AI-linked stocks. - No fresh Marvell-specific announcement explaining the move was identified; its latest listed press release was the September 9 AI data-center event, pointing to sector and macro pressure rather than a company-specific catalyst.