WDC is trading 5.8% down at $454 as investors lock in profits from its recent AI-fueled rally. The pullback comes despite a positive company announcement today.
- On May 18, Western Digital announced it is integrating post-quantum cryptography (PQC) into its newest Ultrastar UltraSMR hard drives, a significant step in next-generation data security. [5, 8, 13]
- The move appears to be a localized reaction to recent sharp gains, as traders reassess high valuations after the stock surged significantly in 2026. [1, 14]
- The decline is occurring even as the company strengthens its product offerings for the AI and security markets, the very drivers of its recent rally.