Amplitude is trading 6.6% down at $15.96 in pre-market amid broad weakness in software and technology shares, the clearest available context for the decline but not a confirmed direct cause. - The software ETF was down 4.1%, with reports citing disappointing results from ServiceNow and Fortinet alongside AI-spending concerns. - No company-specific announcement explaining the October 30 move surfaced. Amplitude’s investor-relations site says third-quarter results are scheduled for November 4.