Boliden is trading 4% up now at SEK 561.00, after rising from the August 19 close of SEK 534.20; no credible company-specific announcement dated August 21, 2026, was found. - Boliden’s latest identified updates concern the Laver mining concession on August 12 and second-quarter results released July 21. - Broader metals momentum is possible, but available copper coverage was mixed, including a reported August 20 decline.