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

Kelly Services Inc. class A rose $.43 or 2.5 percent, to $17.60.

Korn/Ferry International Inc. rose $.53 or 1.8 percent, to $29.90.

ManpowerGroup rose $1.52 or 1.8 percent, to $86.37.

Robert Half International Inc. rose $.48 or 1.0 percent, to $48.22.