MU is trading at $424.90 (+3.6%) in pre-market, building on yesterday's 9.94% surge after CFO Mark Murphy confirmed HBM4 shipments started early amid robust AI demand.
- Management noted that fiscal 2026 supply is already sold out, highlighting the massive scale of the current AI-driven memory cycle.
- The gains align with broader market strength, with the S&P 500 and Nasdaq up 0.34% and 0.31% respectively on positive semiconductor sentiment.