Kioxia's stock skyrocketed by 540% in 2025, driven by a surge in demand for AI storage solutions. The Japanese chipmaker significantly outperformed major indices like the MSCI World and Topix, benefiting from a constrained supply of NAND flash memory. The tech sector's gains were further supported by stable inflation data, while increased orders from tech giants Apple and Microsoft for hyperscale data centers bolstered Kioxia's performance. Investor sentiment, as indicated by rising fear and greed index levels, remained optimistic throughout the year.