Tiffany and Liz Claiborne Among Biggest Stock Losers on Wall Street Today

Complete Genomics Inc.’s (NASDAQ:GNOM) shares tumbled 16 percent following a downgrade by Oppenheimer & Co. to market perform from outperform.

Health Management Associates Inc.’s (NYSE:HMA) shares fell 22 percent after a CRT Capital Group LLC analyst voiced concern about a lawsuit filed in October against the hospital operator over its Medicare billing.

Liz Claiborne Inc.’s (NYSE:LIZ) fell 14 percent after the clothing maker cut its 2012 adjusted earnings forecast.

School Specialty Inc.’s (NASDAQ:SCHS) shares retreated almost 5 percent after an announcement by S&P that the company would be removed from its SmallCap 600 Index after the close of trading on Jan. 17.

Signet Jewelers Ltd.’s (NYSE:SIG) shares are down 6.3 percent after its 2012 earnings forecast did not meet analysts’ expectations.

Tiffany & Co.’s (NYSE:TIF) shares declined 11 percent after the high-end jewelry retailer lowered its yearly outlook. See Tiffany story.

WedMD Health Corp.’s (NASDAQ:WBMD) shares sank 27 percent after the online provider of health-related information announced it is no longer for sale and cautioned that 2012 revenue would be under 2011 results.

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To contact the reporter on this story: Gina Smith at staff.writers@wallstcheatsheet.com

To contact the editor responsible for this story: Damien Hoffman at editors@wallstcheatsheet.com