KEY POINTS
  • Morgan Stanley says the memory chip market's fundamentals are getting worse, citing rising pricing pressure and inventories.
  • KLA-Tencor shares fell to their lows for the trading session after its chief financial officer, Bren Higgins, gave more negative appraisal of the memory market at a technology conference Thursday.
  • The comments drove the semiconductor sector lower. The iShares PHLX Semiconductor ETF declined 2.6 percent while chipmaker Micron plunged 9.8 percent.

Semiconductor stocks are plunging Thursday after a major Wall Street firm and an executive at a large chip equipment company warned that memory chip demand is deteriorating versus expectations.

"Memory markets have worsened in recent weeks. For DRAM [memory chip], demand is weakening, inventory and pricing pressures are building, and vendors are struggling to move bits," Morgan Stanley analyst Shawn Kim said in a note to clients Thursday. "In NAND [flash memory], there is just too much supply. Earnings risks are emerging from 3Q and our cautious view on memory is playing out."