Seagate Stock Surges 270% on AI Storage Demand

Seagate Technology Holdings plc saw its stock price increase by more than 270% over the past twelve months, closing at $945.57 on October 1, 2026. The growth stems from an unprecedented surge in demand for high-capacity hard drives needed to store the massive volumes of data generated by artificial intelligence systems.

Because increasing production capacity requires years of development, the industry is currently experiencing a supply shortage. This environment allowed the company to report a record operating margin of 43.07%.

Analysts caution that these margins result from price effects caused by the shortage rather than a sustainable competitive moat. There are concerns that the current earnings peak may reverse as producers add capacity and customers deplete stockpiles, potentially making the current valuation of roughly 26 times forward earnings unsustainable.