Pre-market pressure on tech stocks in the U.S. is mounting, driven by factors such as rising financing costs for AI infrastructure and intensifying competition from China. CoreWeave (CRWV) fell 6.50%, with investors continuing to focus on its debt levels and the financing costs tied to data center expansion; Micron Technology (MU) dropped 4.00%, pressured by competition from China and uncertainty over AI demand; Oracle (ORCL) declined 2.25% amid concerns over the financing costs of its massive AI infrastructure investments; NVIDIA (NVDA) slipped 2.00%, weakening alongside the broader semiconductor sector as investors reassess AI valuations and spending expectations. Overall, rising financing costs and uncertainty over the AI spending outlook are prompting investors to rotate into more defensive sectors.