Micron (MU) and peers enter bear market amid 20% declines

Micron (MU), Samsung (005930.KS), SK Hynix (000660.KS), and the Roundhill Memory ETF (DRAM) are all down over 20% from recent highs. Samsung reported an operating profit of $59 billion and sales of $113 billion, yet this failed to stop the sell-off. Since June 25, 2026, semiconductor stocks have lost approximately $1.5 trillion in market value, with Micron alone declining by nearly $350 billion. This bear market may signal a shift in sentiment for semiconductor investments, which could affect ordinary investors' portfolios significantly.