Memory semiconductor stocks rebounded sharply Friday as demand from artificial intelligence data centers collided with constrained supplies of high-bandwidth memory (HBM) and NAND flash. Micron rose 6.1%, SanDisk surged 11.9%, SK Hynix gained 8.1%, Western Digital climbed about 6%, and the Roundhill Memory ETF advanced 6.6%. Reports indicated that Micron had sold out its most advanced memory production capacity through the end of 2026, giving major manufacturers pricing leverage. UBS lifted its forecast for annual HBM average selling price growth to 79% from 67%, while Lynx Equity set price targets of $1,325 for Micron and $2,450 for SanDisk. Bernstein retained an Outperform rating on SanDisk and raised its price target to $3,000 from $1,700 in late June. The sector's outlook was supported by strong AI infrastructure spending, a $95 billion Dell AI server order backlog, and Nvidia's $279 billion in supply and capacity obligations. China remains a potential headwind as YMTC's NAND market share rose to 14% in Q2 from 9% a year earlier, while SanDisk's fell to 11% from 13%.