KEY POINTS
  • Bernstein says Nvidia is facing severe challenges to growth.
  • Ahead of earnings on Thursday, Nvidia cut its revenue guidance for the fiscal fourth quarter.
  • After five years of monster gains, the hot stock cracked in 2018.

Bernstein downgraded semiconductor stock Nvidia on Monday to market perform from outperform, saying the company is facing severe challenges to growth and "headline risk [is] likely to continue increasing."

"Following the company's somewhat chilly guidance cut ... we believe the shares are likely to remain hamstrung," Bernstein analyst Stacy Rasgon said in a note to investors.