HBM is cannibalizing the DRAM wafer pool: makers are pouring capacity into high-margin AI memory, dragging conventional server DRAM into a sold-out supercycle with the steepest price increases in over a decade.
Tightness gaugeCritical
Tightness
80/ 100Critical
+8 this quarter — A three-firm market that is essentially sold out for 2026, with contract prices up triple-digits, ~70% of production allocated to AI data centers, and Goldman flagging the worst undersupply in 15+ years. New fabs won't add meaningful bits until late 2027/2028, so every lever points critical with fast-rising momentum.
Every AI server needs conventional DRAM alongside its HBM — and the same three makers fabricate both. Because HBM and server DRAM command far higher margins (revenue per wafer estimated 3–5x conventional DDR5), Samsung, SK Hynix and Micron are reallocating wafers toward AI memory, starving the DDR5 that populates every server node. The squeeze that started in HBM now spans the whole DRAM stack, and added wafer capacity is years away.
Exited consumer memory to focus AI/enterpriseDirect
Catalysts & timeline
Near (quarterly)TrendForce contract-price prints and supplier guidance confirm the supercycle's pace.
Through 2027SK Hynix expects the memory shortage to persist into late 2027; Goldman sees undersupply into 2027.
Late 2027–2028New greenfield DRAM fabs begin meaningful output — the first real supply relief.
What would loosen it
New greenfield DRAM capacity (not meaningful before late 2027/2028), any moderation in HBM demand that frees wafer capacity, or memory-efficiency software (e.g., Google's TurboQuant compression) that lowers effective demand.
Latest developments
2026-04-05
TrendForce: conventional DRAM contract prices +58–63% QoQ in Q2 2026 (after +90–95% in Q1); Goldman estimates 4.9% DRAM undersupply for 2026.
Samsung warns of industry-wide memory shortage; 32GB DDR5 module price raised to $239 from $149 (+60%); SK Hynix says 2026 capacity is essentially sold out.