Marvell Technology (MRVL) Stock Slides After Hours on December 9, 2025: AI Jitters, New Deals and What to Watch Before the Market Opens December 10
Marvell Technology, Inc. (NASDAQ: MRVL) is back in the spotlight — and not in the way bullish AI investors were hoping. After a wave of headlines questioning the stability of its biggest AI customers, the chip designer’s shares extended Monday’s sell‑off on Tuesday, December 9, 2025, even as the company rolled out new AI‑infrastructure products and leaned into its long‑term growth story. Below is a detailed look at how Marvell stock traded after the bell on December 9, what drove the move, and the key things traders and longer‑term investors should know before the U.S. market opens on December 10.