Microsoft Market Cap Jumps $450B, KOSPI Surges 16.4% on Tech Earnings Rally

Microsoft's record $450B single-day market cap gain and strong earnings triggered a global tech rally, lifting the KOSPI by 16.4% and the S&P 500 to its best weekly performance.

Woofun AI reports that Microsoft’s market capitalization increased by $450 billion in a single day, marking the largest such increase in history for any company. The stock rose 15.51% following strong earnings, surpassing the total market value of all European companies except ASML.

This performance triggered a broad rally in global technology stocks, driving the KOSPI index up 16.4% and the Nikkei over 4%. The S&P 500 recorded its best single-day performance in seven weeks, supported by Amazon’s cloud growth which offset Apple’s disappointing outlook.