Micron Technology shares tumbled sharply Tuesday, falling 9.96% to $810.55, losing $89.65 as a deepening global selloff in memory chip stocks continued to hammer the sector amid growing concerns about Chinese competition and cooling AI infrastructure spending sentiment. Read more SK Hynix Stock Plunges Nearly 9% as China's CXMT Chip IPO Sparks Sector-Wide Memory Stock Selloff Monday SK Hynix Stock Plunges Nearly 9% as China's CXMT Chip IPO Sparks Sector-Wide Memory Stock Selloff MondayA Broad Selloff Across the Memory SectorMicron's decline was far from an isolated event, with virtually every major memory chip manufacturer facing similar pressure Tuesday. Investors Reassessing the Durability of the AI Memory BoomBeyond the direct competitive threat from China, Tuesday's selloff also reflects a broader reassessment among investors of how sustainable the extraordinary rally in memory stocks has been this year. Macroeconomic Pressures Add to the SellingBeyond the chip-specific concerns, broader macroeconomic factors have also contributed to the pressure on high-valuation technology stocks like Micron in recent sessions. A stronger-than-expected inflation reading has reignited fears of a more restrictive monetary policy stance from the Federal Reserve, which disproportionately affects high-beta technology stocks.