South Korea’s memory chip giants traded in opposite directions on Tuesday, with Samsung Electronics rallying 3.26% while SK Hynix slipped 1.90%, signaling a potential rotation in the AI-driven semiconductor trade. The KOSPI index managed a 0.53% gain, supported by 1.29 trillion won in foreign buying, as investors reassessed the dueling investment cases.
Samsung’s resurgence has been hard to ignore. Counterpoint Research estimates the company reclaimed the top spot in global DRAM revenue with a 39% share in the second quarter, returning to levels last seen in 2024. SK Hynix, which had led a year earlier, saw its share fall to 26%. The divergence underscores a shift toward Samsung’s broader memory recovery, which benefits from robust conventional DRAM pricing and a growing HBM share, rather than SK Hynix’s more concentrated high-bandwidth memory exposure.
At the same time, Nvidia’s reported testing of a “de-spec” Rubin Ultra chip—with reduced HBM capacity due to supply constraints—could paradoxically boost overall memory demand. UBS analyst Timothy Arcuri suggested that by lowering per-chip memory, Nvidia could produce more units, potentially driving greater total HBM consumption in 2027. He sharply raised his HBM average selling price forecast to a 79% year-on-year increase, citing strengthening pricing power among suppliers.
Micron Technology, a key supplier alongside SK Hynix and Samsung, stands to benefit from this dynamic. The company’s share price remains up over 172% but off 30% from its all-time high. Micron’s chief business officer, Sumit Sadana, said tight memory supply will likely persist beyond 2027 as data-center demand continues to escalate, adding that the current cycle is “very different” from historical patterns.
For the crypto market, the impact remains largely neutral. While the memory sector’s evolution influences the cost and availability of high-performance hardware—including GPUs used in some mining operations—the direct link is tenuous. Mining has largely shifted toward ASICs, and rising demand from AI data centers may keep GPU prices elevated, but this is not a new or crypto-specific dynamic. Therefore, no significant price effects on cryptocurrencies are expected from these semiconductor developments.
