Semiconductor Rebound Drives Nasdaq Surge; Microsoft Jumps 16%

U.S. equities rallied sharply as investors returned to the AI trade, led by a significant rebound in major semiconductor stocks. A widely followed semiconductor index recorded its biggest gain since April 2025, fueling a 3.4% advance in the Nasdaq 100.

Microsoft surged 16%, adding roughly $450 billion in market value—the company's largest single-day increase on record. The move underscored renewed bullish sentiment around artificial intelligence.

In after-hours trading, Amazon rose following stronger-than-expected earnings, while Apple edged lower. The mixed signals among mega-caps highlighted a selective but powerful rotation back into chip and AI-related names.