(ANSA) - ROME, SEP 27 - Monte dei Paschi di Siena, the troubled Tuscan lender that is the world's oldest bank, nosedived 6.6% on the Milan bourse Wednesday amid rumours the Italian Treasury is shaping to sell off some of its 64% stake in the institute.
    MPS closed the day on 2.39 euros a share.
    A flurry of trading saw 32 million shars change hands, compared to 13 million on Tuesday. (ANSA).