Kioxia achieved the strongest stock performance worldwide in 2025, surging 540% year-to-date driven by booming AI data storage demand. The Japanese memory chipmaker topped the MSCI World Index and Japan's Topix index amid tight NAND supply for hyperscale data centers. Kioxia shares rose 540% in 2025, outperforming all MSCI World Index companies. AI workloads fueled [...]