Celestica is trading at CA$289.73 (-12.14%) amid sector and broader-market pressure. - No new Celestica-specific catalyst was identified for November 5; reporting cited concerns about data-center construction and AI regulation. - The supplied context showed the Nasdaq down 3.72% and S&P 500 down 2.26%; Reuters reported Nasdaq futures and chip-related stocks under pressure. - Qualcomm’s weak smartphone-chip sales added to sector concerns, with Celestica included in the broader retreat.