On September 22, Seagate Technology PLC rose 3.96% in regular trading, reaching $911.651 per share, with turnover of $332 million. The rally was driven by persistent supply-demand imbalances in the mechanical hard disk drive (HDD) market, with nearline HDD capacity fully booked through year-end and select hyperscale customers securing supply commitments extending to 2029.

The structural shortage stems from surging AI data center storage demand. Seagate, Western Digital, and Toshiba collectively control approximately 80% of global HDD production capacity, and prioritization of data center orders has severely tightened retail supply, pushing HDD retail prices to historic highs. Seagate's CFO recently noted that 80%-90% of data center storage shipments will leverage the company's HAMR (Heat-Assisted Magnetic Recording) technology, underscoring its strategic positioning in next-generation storage.

Financially, Seagate reported revenue of $3.63 billion in its most recent quarter, representing a 48.5% year-over-year increase, with gross margins expanding sharply from 37% to 52%. Within the Technology Hardware, Storage & Peripherals sector, SanDisk Corp. gained 6.88%, Western Digital rose 3.27%, and Apple edged up 0.73%, reflecting broad strength in storage names.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)