Why Micron (MU) fell 2.79% on August 4, 2026

Micron (MU) fell 2.79% on August 4, 2026 — China fears and CXMT expansion plans pressure sentiment.

China export fears and CXMT's expansion plans are weighing on sentiment around Micron's DRAM market position.

If Changxin (CXMT) scales output aggressively, DRAM pricing power erodes and Micron's share gains face competitive headwinds, pressuring near-term margins and revenue growth.

Within the AI Memory supercycle, supply discipline and pricing have been a critical tailwind for Micron; competitive capacity additions threaten to level that advantage and slow the structural memory upgrade cycle.

If CXMT's expansion stumbles or memory prices hold firm despite new supply, the competitive threat recedes and Micron's valuation floor can recover.