Nova is trading 4.43% down at $316.56 amid broader risk-off pressure and investor doubts about returns on heavy AI infrastructure spending. - No clear Nova-specific catalyst was identified in available news; Asian shares and semiconductor stocks weakened overnight. - Pre-market context showed the Nasdaq down 1.72% and the S&P 500 down 1.00%. - Nova’s next scheduled earnings report is November 5, not an announcement identified for October 22.