analyst downgrades

Shares of executive search firm Heidrick & Struggles International Inc. fell sharply Monday as an analyst downgraded its shares, saying they're overvalued.

Waste Management Inc. will need more time to transform itself from a trash hauler to an environmental services company, an analyst said Monday as he downgraded shares of the Houston company.

A Raymond James analyst on Wednesday downgraded shares of hospital software company MedAssets Inc. but boosted the company's price target citing stock valuation.

An analyst with Standard & Poor's has downgraded the firm's ranking on telecommunications company Consolidated Communications Holdings Inc. because of a belief that the loss of phone-line customers will erode sales.

Shares of Lamar Advertising Co. edged only slightly lower Tuesday after a Goldman Sachs analyst downgraded the billboard operator, saying the company's shares are trading at a higher value than what they are worth.