Woofun AI reports that rare simultaneous divergences in U.S. equity markets have prompted institutional risk reassessment. The Dow Jones Industrial Average and Nasdaq exhibit clear performance splits, with the semiconductor sector reaching new highs while the 'Big Seven' tech stocks lag. Institutions note these signals historically appeared near major market tops. Analysts distinguish the current environment from 2021, attributing the rally to AI infrastructure rather than post-pandemic consumer demand. High-bandwidth memory and data center supply chains benefit most, though rising capital expenditures pressure free cash flow, increasing scrutiny on AI investment returns.