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

Kelly Services Inc. class A rose $.19 or 1.2 percent, to $16.71.

Korn/Ferry International Inc. rose $.39 or 1.3 percent, to $30.10.

ManpowerGroup rose $.85 or 1.0 percent, to $83.51.

Robert Half International Inc. rose $.41 or .9 percent, to $47.97.