The Roundhill Memory ETF (DRAM) surged 5.09% in pre-market trading on Tuesday, continuing its recent strong performance.

The sharp gain was driven by a major technological advancement in the memory sector, as Samsung Electronics announced the successful development of the world's first 900-layer V-NAND prototype system. This breakthrough is expected to reshape flash memory competition and reinforce Samsung's market leadership, boosting sentiment across the memory chip industry.

Additionally, the rally reflects ongoing optimism around the accelerating global memory super cycle, which is being fueled by robust demand from artificial intelligence applications. The DRAM ETF has attracted significant investor interest, with strong inflows indicating confidence in the sector's growth prospects.