San Juan Basin Royalty Trust is trading at $3.65, up +7.35% in after-hours trading; no company-specific catalyst explaining the October 21 rise was found. - The trust rebounded after several down sessions. - On October 20, it announced no October cash distribution; its net excess-production-cost balance was $9,317,264. - Broader U.S. indices advanced during the October 21 session, offering a possible sentiment backdrop, but no direct link to the trust’s after-hours move was verified.