Chip Stocks Surge in Q2 as Market Hunts for Next AI Narrative

A historic rally in U.S. semiconductor stocks through the second quarter of 2026 has left the market searching for a compelling new narrative to power the next leg of the AI trade. The Philadelphia Stock Exchange Semiconductor Index (SOX) climbed roughly 69% over the prior two months and was pacing one of its strongest quarters on record. A Bloomberg newsletter dated July 1 argued that the run-up in chipmaker shares was approaching unsustainable levels and that the AI rally increasingly fit the definition of a bubble, pointing to an inevitable "great rotation" of money away from AI-concentrated leadership toward other sectors (Bloomberg).