Kioxia is the third-largest NAND memory semiconductor manufacturer globally, with a 14% shipment share as of 2024. NAND memory chips are the primary form of data storage in various electronic devices and are increasingly being adopted in electronic infrastructure.
Torrid AI-driven storage demand shows no sign of stopping. A lack of capacity growth by NAND players could result in prolonged undersupply, further increasing NAND prices and profitability for Kioxia in the mid- to long term.
Bears
The aggressive capacity buildout of Chinese NAND manufacturers could contribute to oversupply, eroding NAND prices and further deteriorating industry returns.
Kioxia Holdings is a Japan-based semiconductor memory manufacturer focusing on NAND memory chips. The company is currently the third-largest NAND supplier globally, with a 14% market share as of 2024. The largest single shareholder of Kioxia is currently Toshiba, which had a 21.9% stake as of November 2025. Kioxia operates nine fabs across Japan: seven in Yokkaichi and two in Kitakami. They are mostly run via a joint venture with Sandisk, Flash Ventures. Flash Ventures is 51% owned by Kioxia. The company’s memory chips are used in various consumer electronics and enterprise infrastructure, such as PCs, smartphones, servers, and USB sticks. Of Kioxia’s revenue, 51% comes from the sales of NAND memory used in solid-state drives, which are used in PCs and servers.