Ceres Power is trading at £387.80, down 7.18%, with the catalyst for the September 29, 2026 move unconfirmed. - No clear company-specific announcement explaining the decline was identified. - Recent coverage focused on Ceres Power’s September 23 half-year results, but that earlier news does not establish the cause. - Broader markets were weaker on September 28; available evidence does not show that this explains Ceres Power’s move.