AI demand squeezes mainstream DRAM supply as DDR5, DDR4 prices rise

Surging AI memory demand is triggering a structural imbalance in the DRAM industry. The Big Three—Samsung, SK Hynix, and Micron—are reallocating wafer capacity to HBM, directly constraining DDR4/5 output and pushing spot prices into an early upcycle in Q2 2026. Technically, this forces server OEMs to accelerate DDR5 platform adoption, while cost-sensitive consumer electronics face acute shortages—a mismatch of 'high-end surplus, mid-tier scarcity.' Compliance risks are escalating: U.S. export controls on advanced packaging could delay HBM ramp-ups, while mature-node capacity in Taiwan, China and mainland China can’t swiftly fill the gap. Strategically, Micron may deepen its Nvidia integration, while SK Hynix could lock in long-term deals with OpenAI-aligned clients. Over the next 18 months, a brutal capacity realignment looms—second-tier DRAM makers failing to enter the HBM ecosystem risk permanent marginalization, and cost pressures will cascade down to end-market devices.