Datavault AI is trading 5.59% up at $0.22, with no clear company-specific catalyst identified after its September 4, 2026 close at $0.20 following a 24.94% regular-session decline.
- The clearest company-specific development was another investor-law-firm reminder about Datavault AI’s securities class action.
- The lead-plaintiff deadline is October 5, 2026; the negative news does not directly explain the after-hours rebound.
- Broader markets also closed lower.