Why Western Digital (WDC) rose 19.89%
Western Digital (WDC) rose 19.89% on July 31, 2026 — Amazon, Microsoft AI spending surge lifts memory.
What happened
Amazon and Microsoft earnings confirmed strong datacenter AI spending, bolstering confidence in sustained demand for storage infrastructure across the hyperscaler ecosystem.
Why it moved
Western Digital, a leading storage and HDD/SSD supplier to enterprise, gains visibility into sustained datacenter capex; hyperscaler earnings translate to order visibility and pricing stability for WDC's memory and…
Why it matters
WDC is integral to the AI Memory theme — datacenters building out AI clusters need both memory and high-capacity storage; hyperscaler earnings validate the capex cycle that underpins WDC's near-term outlook.
What would break the thesis
Saturation in datacenter storage buildouts or a shift to in-house custom storage would slow WDC's volume growth; also monitor SSD pricing trends, which could compress margins if oversupply develops.