Marvell Technology (MRVL) Stock After Hours on Dec. 18, 2025: Why Shares Pulled Back Slightly After a Chip Rally — What to Know Before the Market Opens Dec. 19
Marvell Technology, Inc. (NASDAQ: MRVL) ended the regular trading session on Thursday, Dec. 18, 2025 at $84.47, up 3.39% on the day, as money flowed back into semiconductors and AI-linked infrastructure names. After the closing bell, the stock cooled modestly, with an after-hours quote around $84.11 (-0.43%) as of 4:48 p.m. ET, alongside roughly 351K shares in extended-hours volume. MarketWatch For investors heading into Friday’s open (Dec. 19, 2025), the setup is less about a company-specific shock and more about whether today’s “chip rebound” sticks—and how much options expiration (quad/triple-witching dynamics) and macro headlines amplify volatility into the weekend. Investopedia