  The latest result in the Sloan Digital Sky Survey Quasar Lens Search (SQLS)
has set the first cosmological constraints on negative-mass compact objects and
Ellis wormholes. There are no multiple images lensed by the above two exotic
objects for $\sim 50000$ distant quasars in the SQLS data. Therefore, an upper
bound is put on the cosmic abundances of these lenses. The number density of
negative mass compact objects is $n<10^{-8} (10^{-4}) h^3 {\rm Mpc}^{-3}$ at
the mass scale $|M| > 10^{15} (10^{12}) M_\odot$, which corresponds to the
cosmological density parameter $|\Omega| < 10^{-4}$ at the galaxy-scale mass
range $|M|=10^{12-15}M_\odot$. The number density of the Ellis wormhole is
$n<10^{-4} h^3 {\rm Mpc}^{-3}$ for a range of the throat radius $a =
10^{1-4}$pc, which is much smaller than the Einstein ring radius.
