Micron Falls to Fifth in NAND Shipments as YMTC Rises

What happened

YMTC climbed to third place in global NAND shipments during Q2 2026 with a 14% market share, narrowly edging out Kioxia at 13% and surpassing Micron, according to Counterpoint Research data released in August 2026. Samsung maintained the top position with 25%, followed by SK hynix at 22%. YMTC's shipments grew 22% year-over-year and 5% sequentially, driven by supply shortages and expanded sales to domestic Chinese OEMs. The company is mass-producing 267-layer 3D NAND chips while advancing 300+ layer technology using its Xtacking architecture. Despite the shipment-share gains, YMTC ranked fifth by NAND revenue, trailing both Micron and Kioxia, due to its concentration in lower-priced consumer products rather than premium enterprise SSDs.

Why it matters

The shift in market share reflects China's growing competitiveness in memory chips, a sector critical to AI infrastructure, servers, and consumer electronics. NAND chips, which account for roughly one-fourth of Micron's revenue, are experiencing tight supply conditions as AI workloads migrate from training to inference, driving demand for high-capacity, high-performance storage. While Micron lost ground in shipment volume, the company's focus on premium data-center products helped it maintain a revenue advantage. Micron generated a record $9.9 billion in NAND revenue in fiscal Q3, nearly doubling sequentially, with data-center SSD revenue exceeding $5 billion and more than doubling quarter-over-quarter. NAND selling prices jumped in the mid-80% range, underscoring the value of higher-margin enterprise products over shipment volume alone.

Bigger picture

The global NAND market in Q2 2026 saw industry revenue rise fivefold from the prior year, driven by AI-related demand and supply tightness. Enterprise SSDs accounted for 48% of total bits shipped, leaving consumer supply short and pushing consumer average selling prices to record highs. By year-end 2026, enterprise SSDs in servers are expected to absorb more than half of all NAND bits, reshaping the competitive landscape. YMTC is preparing to list shares in mainland China, following the successful debut of Chinese DRAM-focused chipmaker CXMT in the previous month. Counterpoint noted that a 15% market share is typically the minimum needed for memory manufacturers to self-fund capital expenditures for future growth. YMTC plans to shift its product mix further toward enterprise SSDs in the second half of 2026 to solidify its third-place position and improve revenue performance.

What to watch

Key indicators include Micron's ability to maintain pricing power and market share in high-value data-center SSDs as YMTC expands its enterprise product offerings. Micron expects tight NAND supply-demand conditions to persist beyond 2027, with industry bit shipments projected to rise roughly 20% in 2026, while its own NAND supply growth will trail the industry. Investors should monitor NAND pricing trends, data-center SSD revenue growth, and whether YMTC's planned shift toward enterprise products begins to erode Micron's revenue advantage. YMTC's upcoming public listing and access to capital could accelerate its technology development and market expansion.