VUG is trading at $88.22, down 3.00% after hours, with available news not establishing a clear cause for the decline. - The move contrasts with VUG’s September 25 regular-session gain and a generally firmer market. - Session growth-stock sentiment was supported by Microsoft’s Copilot redesign, lifting its shares more than 4%, and reports of a chip-stock rebound. - Falling oil and slightly lower Treasury yields eased macro pressure but do not explain the after-hours drop.