MediaTek is trading 3.16% up at TWD 5,065 on September 30, 2026; available reporting identifies no clear company-specific catalyst for the gain. - A September 29 report linked a sharp decline to unconfirmed customer-hesitation reports involving Broadcom and Marvell, but that prior-session explanation does not establish the reason for the current gain. - Semiconductor-sector weakness is also reported and does not explain the move in the same direction.