Shares of some top managed care companies were mixed at the close of trading:

Aetna fell $.33 or .4 percent, to $84.54.

Cigna Corp. rose $.41 or .4 percent, to $96.80.

Humana Inc. fell $.50 or .4 percent, to $133.06.

UnitedHealth Group fell $.11 or .1 percent, to $85.94.

WellPoint rose $.12 or .1 percent, to $115.44.