Wall Street prices NAND scarcity through 2028 while YMTC builds toward Samsung's scale

The NAND trade is a wager that nobody builds. Micron's fiscal fourth quarter↗ set the record: $14.1 billion of NAND revenue, up 526 percent from a year earlier, on prices up about 30 percent, ahead of a Street consensus near 20 and still short of the 34 percent Citi itself had modeled ¹²³. Citi's Atif Malik kept his Buy and $2,100 target on SanDisk anyway, expecting the industry to stay supply constrained through calendar 2027 and 2028 ³. SanDisk, up 611 percent this year with a beta of 3.65, is the cleanest way that wager trades ².

The scarcity has an author

Tightness is man-made. Samsung, SK hynix and Kioxia have held back large additions since the 2023 glut left the industry on massive inventories and trillion-won-range losses ⁴. Counterpoint's MS Hwang notes memory investment remains concentrated in DRAM, leaving NAND under-built while cloud providers pull SSD orders forward ¹. The payoff sits in SanDisk's filings↗: a $1.9 billion loss in the quarter ended March 2025, then $6.9 billion of net income on $9.0 billion of revenue in the quarter ended this July, 77 cents of every dollar ⁵.

The builder outside the pact

At a seminar in South Korea's National Assembly on 28 September↗, TechInsights' Choi Jeong-dong called YMTC "a definitive competitor" that has "entered the ranks of the world's top-tier competitors" ⁴. TechInsights puts its 3D NAND revenue share at 13 percent, from 2 percent five years ago, while Samsung slipped from 35 percent in late 2021 to 28 ⁴. Counterpoint already ranks YMTC third in bits shipped, at 14 percent ⁶.

Dan Kim's point was sharper: NAND races vertical stacking, not EUV lithography, so export controls do not bite and he expects output "to grow consistently" ⁴. Ahead of a Shanghai IPO seeking about $5 billion↗, YMTC has told investors it aims to be the biggest NAND maker by the end of 2027 ⁷.

Two Wuhan fabs run about 200,000 wafers a month ⁶. The third, starting by year-end, adds 100,000 more, and two planned fabs would lift the total to roughly 400,000, inside Samsung's estimated 390,000 to 450,000 ⁴⁶.

How fast the market reprices a supply date

The storage complex just showed its reflexes. On 2 October, a report that Toshiba would spend roughly 60 billion yen↗, about $380 million, to double AI data-center hard-drive output took Seagate down 10.21 percent and Western Digital 10.22 percent, repricing the duration of scarcity rather than the demand behind it ⁸. YMTC's third fab adds half again the company's entire capacity, and it carries a date.

China's own boom may soak up the wafers

Nothing here forces a glut. Institutional investors cited by TrendForce expect China's AI and cloud boom to absorb much of the new output at home, with no meaningful effect on global supply and demand until 2027 or later ⁹. Choi frames a price war as conditional on a demand slowdown ⁴. Citi's note also models more supply than its own company plans around↗, industry bit growth in the mid-20 percent range against the mid-teens SanDisk has guided ²³.

Enterprise SSD prices decide it on 29 October

SanDisk reports fiscal Q1 on 29 October against consensus of $46.11 a share on $10.63 billion of revenue ². The tells are enterprise SSD prices, 48 percent of all NAND bits shipped in the second quarter ⁶, and how much of Wuhan's output stays inside China ⁹. Until one moves, 25 analysts averaging $2,136 are underwriting scarcity ². The trade pays for discipline from producers who learned 2023's lesson. The builder doubling into it never took that lesson.