Microsoft
The $400 Billion Reality Check: Microsoft Shares Plunge 12% as AI Costs Mount
The era of blind faith in Artificial Intelligence met a harsh reality on January 29, 2026, as Microsoft Corp. (NASDAQ:MSFT) saw its shares plummet by nearly 12%, erasing approximately $400 billion in market capitalization in a single trading session. The sell-off, the company's steepest one-day decline since