The memory chip sector is surging in pre-market trading, driven by a confluence of positive news. A fresh industry report highlights a 71% quarterly revenue jump in Samsung's NAND flash business, citing a supply crunch driven by AI server demand. This follows recent news of a major $29 billion share buyback from SK Hynix and reports of significant expected price increases for both DRAM and NAND chips in the third quarter. The sustained, strong demand from the AI sector is tightening supply and boosting profitability for major manufacturers.