Western Digital reports Q3 revenue up 45% YoY to $3.34B, vs. $3.25B est., and forecasts Q4 revenue above estimates; WDC drops 7%+ after hours (Anhata Rooprai/Reuters)

Western Digital exceeded Q3 revenue expectations with 45% YoY growth to $3.34B and provided optimistic Q4 guidance, yet the stock declined 7%+ after hours, signaling investor concern about sustainability beyond current memory demand cycles. For IT leaders, this reflects the volatile storage market dynamics driven by AI infrastructure buildout, suggesting organizations should secure long-term supply agreements now while vendor confidence remains high. The disconnect between strong results and negative stock movement indicates potential headwinds ahead—possibly margin pressure, competitive saturation, or macro uncertainty—that could impact hardware procurement costs and availability in 2026-2027.