Raízen is trading 5.6% down at BRL 0.34 on October 6; cause remains unclear. - The decline follows a sharp prior-session rally; no verified company-specific announcement directly explains it. - Argentina’s business sale to Mercuria was reported completed, but coverage does not link it to the drop. - Brazilian equities were mixed in available live reporting; supplied U.S. gains do not explain the decline. Raízen rose from BRL 0.29 on September 29 to BRL 0.35 on October 2.