Staffing companies shares down at 10 a.m.

Shares of some top staffing companies are down at 10 a.m.:

Kelly Services Inc. class A fell $.04 or .2 percent, to $17.33.

Korn/Ferry International Inc. fell $.19 or .6 percent, to $33.06.

ManpowerGroup fell $.12 or .1 percent, to $86.45.

Robert Half International Inc. fell $.36 or .6 percent, to $59.40.