The memory chip sector is experiencing a significant pre-market rally, with the DRAM ETF up 3.78%. The primary catalyst is Nvidia's blowout quarterly results and a robust forecast for AI-driven demand. As a key supplier of high-bandwidth memory (HBM) for Nvidia's AI accelerators, SK Hynix saw its stock surge, pulling other memory-related stocks like Samsung higher. Nvidia's report confirmed that demand for advanced memory chips remains strong, boosting investor sentiment across the semiconductor industry.