Why Western Digital (WDC) rose 5.46%
Western Digital (WDC) rose 5.46% on October 27, 2026 — Memory-storage rally on broad tech strength.
What happened
Western Digital rose 5.5% alongside the AI Memory group after reports that Meta is seeking about $95 billion for its AI buildout.
Why it moved
Large AI infrastructure budgets increase demand for high-capacity storage used in training and inference data, which benefits hard-drive makers like Western Digital.
Why it matters
Western Digital is part of the AI Memory and storage supercycle, where AI workloads are lifting demand for both flash and high-capacity drives. Hyperscaler spending is the common thread linking the group.
What would break the thesis
The thesis weakens if hyperscaler capex plans get cut or if storage pricing stalls. Hard-drive demand is more cyclical than flash, so watch for any sign that AI storage needs are being met with existing capacity.