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

Kelly Services Inc. class A fell $.11 or .7 percent, to $16.58.

Korn/Ferry International Inc. fell $.31 or 1.0 percent, to $29.82.

ManpowerGroup fell $.60 or .7 percent, to $81.50.

Robert Half International Inc. fell $.46 or .9 percent, to $50.71.