  We estimate the amount of antiprotons and positrons in cosmic rays due to
neutralino annihilations in the galactic halo assuming that dark matter tends
to cluster and that these clusters are not disturbed by tidal forces. We find
that, assuming neutralinos annihilate mostly to gauge bosons, the amount of
antiprotons should exceed the number seen at BESS, whereas the increase in
positron flux is below the present detection threshold.
