MP Materials is trading 4.5% down at $56.39 after Zacks Research downgraded the shares from Hold to Strong Sell on August 28, 2026.

  • The action follows a sharp recent rally and renewed valuation concerns, despite strong second-quarter revenue growth.
  • Zacks has cited elevated operating and startup costs, downward earnings-estimate revisions, and premium valuation as risks.
  • Broader markets are only modestly weaker, suggesting company-specific selling appears dominant.