Micron Technology is trading 3.1% down at $958.00 in pre-market on October 13, as Chinese DRAM maker CXMT’s progress on a denser 4F² architecture and plans for server-memory products using it by year-end raised competition and pricing-pressure concerns. - The memory-chip sector was down 4.06% pre-market; no separate Micron-specific announcement was identified. - Micron closed October 12 at $989.04, down 3.88%, amid the same competitive concerns, pointing to a sector-driven move.