Technology

• Shares of Arm plunge 8% after licensing revenue misses estimates, Qualcomm outlook adds pressure - Shares of UK-based semiconductor designer Arm Holdings fell in aftermarket trading, despite the company posting record revenues amid AI demand.
• Alphabet resets the bar for AI infrastructure spending - The search giant's proposed capex spend for 2026 exceeds that of its hyperscalers peers.
• Qualcomm stock sinks as memory shortage drags on forecast - "We're starting to see that memory is going to define the size of the mobile market," Qualcomm CEO Cristiano Amon said in an interview.
• Alphabet earnings are out – here are the numbers - Wall Street will be looking for more details Google's deal to revamp Apple's Siri virtual assistant with the search company's Gemini AI models.
• AMD's Lisa Su addresses guidance concerns, says demand still accelerating for advanced chips - CEO Lisa Su said that data center business has risen from the fourth to first quarter and demand for its central processing units is "going gangbusters."
• Uber reports 20% revenue growth in fourth-quarter, fueled by food delivery - Uber said revenue in its food delivery business increased 30%, beating analysts' estimates.
• AMD is down 9% after reporting earnings. Here's why - The chipmaker's stock has surged over the past year amid the AI boom
• Nintendo shares sink 10% as gaming giant faces memory shortage concerns - Nintendo fell over 10% in Asia trade as the gaming giant faces headwinds from an unprecedented memory shortage. 
• Pinterest CEO rebukes, fires 'obstructionist' employees who created tool to track layoffs - Pinterest CEO Bill Ready lashed out at staffers who created an internal tool to track layoffs at the company, and fired those involved.
• AMD shares drop as forecast comes up short of some expectations - AMD's first-quarter forecast fell short of what some analysts were hoping for amid an AI spending boom.