Vicor is trading 10.75% higher at $320.00 after-hours on September 30; no clear catalyst has been identified. - Available search results show no new company announcement or other clear catalyst for the move. - Vicor’s recent rally followed its September 21 increase to more than 20% sequential Q3 growth guidance, linked to royalties from a Vertical Power Delivery licensing deal. - That earlier news may provide background but does not establish the reason for tonight’s move.