Stock Market 12 December 2025

SpaceX is set to join the Russell 1000 index at the end of the week, with JPMorgan analysts estimating about $4 billion in passive buying as a result. The Russell U.S. indexes are widely tracked, with $12.2 trillion benchmarked to them. Super Micro Computer shares rose in premarket trading after GF Securities upgraded the stock to Buy, citing a positive outlook following the company’s AI-server financing package. AT&T shares hovered just above their 52-week low ahead of Q2 earnings, while Pfizer’s stock slipped as CFO Dave Denton announced his departure, with Cecile Guegan stepping in as interim CFO. American Airlines shares gained in premarket trading, supported by lower jet fuel prices due to eased oil-market concerns from U.S.-Iran talks, with airlines expected to use the savings to improve margins. Sandisk and Micron Technology both saw premarket gains, with Sandisk benefiting from sector momentum after Apple’s memory-cost warning, and Micron ahead of its fiscal Q3 report, where strong AI-memory pricing is expected to drive results. China imposed export blocks on several U.S. entities, impacting Red Cat and Teal Drones, while Nokia shares declined as the company undergoes an AI-infrastructure rerating. Brent crude prices dropped sharply on renewed U.S.-Iran talks, leading to a surge in short positions. U.S. equity futures dipped despite cheaper oil, as traders focused on rates and inflation data. Marvell Technology advanced on S&P 500 inclusion and AI-networking optimism, while Keel Infrastructure rose on Russell index timing and leasing business interest. Walmart recalled Great Value Hawaiian Roll four-packs due to a contamination issue. Cognizant Technology Solutions fell over 10% after Accenture warned of weaker IT-services demand and Berenberg downgraded the stock.