• Ultra Clean Holdings Inc is trading 6.2% up at $128.79 in pre-market trading, benefiting from strong semiconductor sector momentum driven by AI demand.
  • The stock was recently upgraded to "Buy" from "Hold" by Wall Street Zen on June 21, 2026, adding a fresh company-specific catalyst to its multi-day rally.
  • This move extends a sharp rally from $90.90 on June 10 to $121.28 on June 18.