UnitedHealth Sniffles

For the first time in recent memory, a major Wall Street analyst has started warning investors to sell their stock in UnitedHealth Group (UNH Quote).

Goldman Sachs analyst Matthew Borsch kicked off the week by reiterating his underperform rating on UnitedHealth, even with the stock nearly 15% below its late-December high. Borsch listed multiple reasons for his contrarian view.

He cited falling profit at recently acquired PacifiCare, possible problems with earnings quality, near-term integration risks, marketplace "noise" about declining customer service and the company's poor ranking on corporate governance scores when explaining his bearish view on Sunday. ...