Western Digital's stock soared 8.27% during intraday trading on Wednesday, continuing its strong performance following the company's separation from SanDisk last year.

The surge comes amid sustained artificial-intelligence demand for memory and storage products that has created supply constraints in the market. One year after splitting into separate businesses, both Western Digital and SanDisk have delivered impressive stock performances, with Western Digital's shares rising 472% since the February 2025 separation.

Analysts note that AI-driven demand has allowed storage makers to raise average selling prices and secure long-term agreements with customers. The corporate split has enabled Western Digital to better focus on its hard-disk-drive business with what the company's CFO describes as "a much cleaner story that is easy to articulate." This favorable market environment for storage products is expected to continue into at least 2028 according to industry analysts.