The industry is suffering from a supply glut as output, including from South Korean rivals Samsung and SK Hynix are outstripping chip demand and pressuring prices.
Wall Street analysts have warned that chipmakers will have to cut capacity to allow prices to stabilise.
Micron Chief Executive Officer Sanjay Mehrotra said weaker demand in DRAM would likely persist through the first half of calendar 2019 with a recovery expected in the second half.
“Our bigger picture concern is that with the price declines through the calendar (first quarter), we seem to be nowhere near a market clearing price in either DRAM or NAND”, Morgan Stanley analyst Joseph Moore wrote in a client note.
Micron might follow Samsung and slash production output to better align with falling demand.
VAT Group shares fell nearly six percent after the Swiss vacuum valve maker said weak chip demand forced it to keep production employees on shorter working hours.
Lam Research fell three percent, while Applied Materials slipped 1.6 percent. ASML Holding fell 1.8 percent.
Micron’s shares were down seven percent at $31.21, while those of peer Hynix were down 1.3 percent.
At least eight brokerages lowered their price targets on Micron, with J.P. Morgan and Evercore ISI lowering their targets by $20, respectively. Needham and RBC downgraded the stock to “hold.” The median price target on the stock was $48.