WDC is trading 11.8% up at $717.47 in pre-market following a sharp after-hours jump driven by surging AI-related demand and positive semiconductor sector momentum.
- Enthusiasm continues for Western Digital’s AI-driven flash and HDD demand, supported by strong FY 2026 margin expansion and the company's recent dividend hike.
- The stock is benefiting from a powerful read-across from Micron’s AI memory earnings and broader strength across the semiconductor industry.