Samsung, SK Hynix NAND profits seen surging on enterprise SSD demand

Enterprise SSD demand is the "second front" of AI infrastructure. Once HBM resolves the memory-bandwidth bottleneck, NAND absorbs the data-throughput and inference-cache layer. The 2026 NAND profit jump at Samsung and SK Hynix is not a consumer-cycle recovery—it is a structural shortage of high-DWPD, high-capacity QLC wafers for data centers. Technically, 200+ layer NAND and HBM4 advanced packaging now compete for the same 300mm fab capacity, intensifying internal resource-allocation wars. On the competitive front, Micron is leveraging CHIPS Act subsidies to capture enterprise share, while YMTC continues price pressure below the 128-layer node. The pricing-power window for the Korean duo will likely be shorter than sell-side consensus assumes. On compliance, if U.S. export controls extend to enterprise SSD controllers, Samsung and Hynix face a direct 15-20% NAND revenue haircut from the China market. Over the next 12-24 months, if AI capex sustains, NAND will replicate the 2023 DRAM "supply-rigidity" pricing logic—but QLC yield-ramp slope is the true ceiling on profit elasticity.