Western Digital has surged 915% YoY, driven by robust cloud demand and exceptional margin expansion. WDC delivered strong Q3 results: $3.34B revenue (+46% YoY), $2.72 EPS, and 50.5% gross margin, with a bullish FY26–28 EPS growth outlook. Valuation remains attractive with a forward PEG of 0.86x and a $555 fair value target based on FY28 normalized EPS.