Micron Technology's stock experienced a significant pre-market plunge of 5.01%, reflecting negative sentiment among investors during the early trading session.

The sharp decline appears to be directly linked to a Morgan Stanley analyst report that replaced Micron with Nvidia as the firm's top chip pick. Analyst Joseph Moore shifted his preference from memory stocks to processor stocks, highlighting an "interesting debate" over whether memory stocks like Micron or Nvidia's stock is the best way to play the artificial-intelligence boom.

Moore noted that while memory stocks have seen substantial gains recently, Nvidia now represents a "surprisingly good entry point" for investors. The analyst's prior top-pick calls have performed well, with Micron having held the designation since November before being replaced by Nvidia in this latest assessment.