Stock Market 15 December 2025

Space Exploration Technologies Corp. shares fell 16.4% to $154.60 on Monday, marking their steepest drop since going public and erasing about $400 billion in market value, taking the stock below its IPO closing price. Intel dropped about 8% in premarket trading Tuesday after closing Monday up 5.19% at $140.94, as investors monitor rate risks and concerns over debt-driven AI spending. Super Micro fell 6.3% before the bell after a strong Monday, having jumped 15.66% on a new data-center design using Nvidia’s Vera Rubin NVL4 platform and an upgrade from GF Securities. Anthropic secured support from Micron Technology, which will supply memory and storage for the AI startup and join its new funding round, as Anthropic prepares for an IPO. IBM traded higher premarket at $260.34, up 3.22%, following a cyber-defense deal with OpenAI and new U.S. quantum-computing orders, even as Nasdaq futures dropped 2.25%. American Airlines ended Monday up 0.56% at $16.08, with lower jet-fuel prices driving market moves for airlines. The KOSPI index in Seoul slumped 9.99%, its largest drop in over three months, after a selloff in chipmakers following a record AI rally and regulatory warnings. Power Plate Meals recalled about 5,795 pounds of frozen meatloaf due to undeclared soy, which poses allergy risks. Seacor Marine surged 18.7% to $7.93 after a major shareholder called for a strategic review, though prospects remain mixed. U.S. index ETFs were little changed in after-hours trading Monday, with blue chips up and growth stocks weaker.