Microsoft lost $357 billion in market cap as stock plunged most since 2020

Microsoft CEO Satya Nadella gestures as he speaks during the World Economic Forum meeting in Davos, Switzerland, on Jan. 20, 2026.Microsoft shares slid about 10% on Thursday following an earnings report that disappointed some investors, prompting the stock's sharpest daily decline since March 2020. The move trimmed the technology company's market cap by $357 billion, leaving it at $3.22 trillion by the end of Thursday trading.The iShares Expanded Tech-Software Sector exchange-traded fund tumbled 5% on Thurs ...