Global equity markets experienced broad declines as AI sector concerns intensified, pressuring major U.S. indices. The S&P 500 and Nasdaq ended lower this week, weighed down by heavy capital expenditures in tech firms and worries about sustainability of growth strategies.
Asian and European markets also mirrored weakness, with several regional benchmarks sliding in tandem with U.S. equities. Market participants are balancing earnings prospects against wider economic gloom, prompting rotation into defensive sectors such as healthcare and utilities.