Loma Negra is trading at $9.48, up 6.43% in pre-market, with no confirmed cause for the move. - Materials-sector context: XLB is up 1.58% pre-market, but no direct link to Loma Negra’s larger move is established. - Loma Negra reported a $22.98 million repurchase of Class 5 bonds on November 4; available reporting does not establish this as the cause. - Q3 results are scheduled after market close November 5; they have not yet been reported.