Micron Technology shares traded lower on November 4, 2026. Reports put the decline at around 2.4% to 3.6%.
The drop followed reports that Chinese memory maker CXMT had announced a breakthrough in DRAM technology. Investors worried the development could increase pricing pressure and threaten market share for established companies such as Micron.
Other memory-chip makers also saw their shares fall, as concerns about competition from China added to existing worries about the memory market’s cyclical nature. The news overshadowed filings that revealed changes in institutional ownership of Micron stock.