In Q1 2025, SK Hynix overtook Samsung for the first time to lead global DRAM revenues with a 36% share, driven by its dominant 70% market share in HBM
Context & Ripple Effects
SK Hynix’s revenue crossover follows its Q4 operating-profit milestone, when it beat Samsung on operating profit for the first time as HBM represented a large share of its DRAM business. The Q1 result shows that advantage had moved from earnings into overall DRAM revenue leadership.
The shift sits within an AI-memory contest in which Samsung and Micron were already racing to close SK Hynix’s HBM lead. A 70% HBM share made that specialized segment decisive for a much broader DRAM ranking.
First-order effects
- SK Hynix becomes the top DRAM revenue supplier in Q1 2025, with its 36% share directly reflecting the revenue weight of HBM demand.
- Samsung loses the DRAM revenue lead, while SK Hynix’s HBM position gives it greater influence over the highest-demand part of the memory market.
Second-order effects
- Samsung and Micron face stronger pressure to qualify and scale competing HBM products, because conventional DRAM scale alone is no longer sufficient to protect revenue leadership.
- AI-chip and system customers become more exposed to SK Hynix’s HBM supply position, increasing the value of alternative qualified memory sources.
Third-order effects
- If HBM continues to determine DRAM revenue rankings, the memory market could be organized more around advanced-memory execution than commodity DRAM volume.
- The result reinforces a capacity-lag dynamic: concentrated leading-edge HBM supply can shift bargaining power toward suppliers until credible second sources scale.
The trend: AI infrastructure is turning HBM capability into the main lever of memory-industry leadership, reshaping both supplier rankings and customer sourcing strategies.