Stock market today: Dow, S&P 500, Nasdaq sink as Microsoft's post-earnings plunge drags tech down

US stocks sank in mid-morning trading on Thursday on a tech-driven selloff as investors came away from megacap tech earnings fretting about AI spending. The tech-heavy Nasdaq Composite (^IXIC) led losses, shedding roughy 2.6% amid an over 10% plunge from Microsoft (MSFT). The S&P 500 (^GSPC) and Dow Jones Industrial Average (^DJI) followed the tech sector down, shedding 1.5% and 0.8%, respectively, following Wednesday's muted performance. Microsoft's slide deepened Thursday, after its earnings report spo ...