The authors present calculated densities of states (DOS) for CuxZr1-x amorphous alloys across the compositional range. They find that for x<80 at.% Cu there is no ordering and the Fermi level EF is dominated by the Zr 4d subband, while above 80 at.% Cu the local order increases and the DOS at EF abruptly decreases and is dominated by the s states. These changes in the DOS and the fact that the energy derivative of the self-energy changes its sign (implying a change of sign of the Fermi velocity) gives further insight into the experimentally observed sign reversal of the Hall coefficient which occurs for 80⩽x⩽85 at.% Cu