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

Kelly Services Inc. class A rose $.06 or .4 percent, to $16.25.

Korn/Ferry International Inc. fell $.17 or .6 percent, to $30.09.

ManpowerGroup rose $.27 or .3 percent, to $78.39.

Robert Half International Inc. rose $.25 or .5 percent, to $49.98.