The Allstate is trading 16.11% up at $262.05 after-hours, despite closing at $225.69 on September 23, 2026, with no reliable company-specific catalyst identified. - No reliable September 23 announcement, earnings release, acquisition, or analyst action was identified to explain the reversal. - The most recent company-specific development was September 17’s disclosure of $748 million in August catastrophe losses. - The losses had pressured shares earlier but do not explain the upward after-hours move.