Stock Market Today: Dow Falls On Trump's 'Economic D-Day' Threat; Walmart Takes A Dive (Live Coverage)

Stock Market Today: Dow Jones, S&P 500 Futures Fall as Trump Launches 'Operation Economic Fury' on Iran—

Trump announces Iran sanctions amid S&P 500 decline (-0.13%), Treasury 10Y at 4.66%, 32.8% Fed hike probability. Structural rise in capital cost impacts M&A decisions, AI infrastructure (data centers, chips) investments, and startup runway.