Micron Stock Falls Amid Reduced HBM4 Supply Forecast from Semianalysis

Micron Technology's stock fell 0.5% pre-market after a Semianalysis report reduced the company's expected share of Nvidia's HBM4 memory to zero. The report cited "poor speed performance" from Micron's use of an internal base die. HBM is a critical component for AI chips, and being excluded from Nvidia's next-generation products could impact Micron's growth in the high-margin AI memory segment.