Why is AMD stock soaring nearly 19% after blockbuster earnings, and are AMD shares signaling Wall Street’s biggest AI power shift yet as demand rewrites the chip playbook?

AMD stock up nearly 19% today after blockbuster earnings beat. Something shifted in the semiconductor world on Wednesday, May 6, 2026. AMD stock didn't just rise — it lunged. Shares of Advanced Micro Devices climbed 18.9% in a single session, adding more than $110 billion in market value in one day. And if you look closely at what drove them, you start to see a much bigger story about where AI infrastructure is actually heading.