US stock futures plunged on Thursday as investors digested President Trump's announcement of a 10% tariff on all US trading partners, which has sent shockwaves through markets and the global trade order. S&P 500 futures (ES=F) dived 3.1%, while Dow Jones Industrial Average futures (YM=F) tumbled 2.5%, or over 1,000 points. Contracts on the tech-heavy Nasdaq 100 (NQ=F) led the sell-off, plummeting 3.5%. Apple (AAPL) shares fell sharply, while Nvidia (NVDA) and other chip stocks also tumbled amid concerns about disruption to their supply chains. China, a key supplier of components to such tech companies, was hit with additional US...