Western Digital shares soared 16.8% during the most recent trading session on volume that was roughly 40% above its 30-day average, according to exchange data. That surge coincided with a flurry of upward earnings estimate revisions: over the past two weeks, ten analysts have raised full-year profit forecasts by an average of 5%, lifting consensus EPS expectations from $3.40 to $3.58. Institutional ownership ticked higher as well, with two large mutual funds disclosing new positions totaling $120 million in market value.

Investor optimism around Western Digital has been buoyed by accelerating demand for AI training data storage. Reports that SK Hynix and Samsung have implemented 10–15% price increases on DRAM chips have prompted enterprise customers to explore higher-capacity hard disk drives as a cost-effective alternative. Nvidia’s continued dominance in AI GPU shipments—up 25% year-over-year in the latest quarter—has also driven cloud service providers to secure additional HDD inventory, with Western Digital reporting a 12% increase in unit shipments for hyperscale customers in its last fiscal update.

Management’s recent announcement of a $1.5 billion share-repurchase authorization and plans to expand production capacity at its Thailand manufacturing complex by 20% underscore Western Digital’s commitment to meeting rising demand. Upcoming catalysts include the release of second-quarter results on May 28, where the company is expected to report revenue growth of 8% sequentially. Analysts will also watch closely for margin guidance, as higher raw material costs have the potential to squeeze profitability if not offset by pricing power in the broader storage market.