4Q25 NAND Flash Revenue Rankings by Manufacturer

Demand for SSDs optimized for AI inference workloads grew rapidly, while tightening supply conditions of NL HDDs drove rising substitution demand for QLC SSDs. Major memory manufacturers continued to expand Server SSD supply to meet growing needs, driving the global NAND market up 27.8% quarter-over-quarter to $23.55 billion in Q4.

Samsung recorded $6.35 billion in Q4 NAND Flash sales, up 18.4% sequentially, capturing a 27.0% market share to rank first. SK Hynix posted $5.21 billion in Q4 NAND Flash sales, up 47.4% quarter-over-quarter, with a 22.1% share to rank second. Kioxia reported $3.52 billion in Q4 NAND Flash sales, up 15.7% sequentially, holding a 15.0% market share to rank third. WD recorded $3.03 billion in Q4 NAND Flash sales, up 31.1% quarter-over-quarter, accounting for a 12.8% share to rank fourth. Micron posted $2.74 billion in NAND Flash sales for Q4 (September–November 2025), up 21.8% sequentially, representing an 11.6% market share and ranking fifth.