Quanta Services is trading 4.70% down at $625.80, primarily amid broad AI-safety concerns and a sharp risk-off move across U.S. markets.

  • A September 14 report found no widely highlighted Quanta-specific event; major U.S. indexes were also lower.
  • Higher oil prices, geopolitical risk, and shifting Federal Reserve expectations were also cited.
  • Trading activity is elevated as investors reduce exposure to growth-sensitive and infrastructure-related shares ahead of this week’s Federal Reserve meeting.