Groupons Q4 losses see stock tumbling 16%

The worlds largest daily-deal site reported a tax-related fourth-quarter loss that analysts hadnt predicted
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The Groupon logo is displayed in the lobby of the company's international headquarters on June 10, 2011 in Chicago, Illinois. Groupon, a local e-commerce marketplace that connects merchants and consumers by offering goods and services at a discount, announced June 2 that it had filed with the Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The company, launched in Chicago in November 2008 now markets products and services in 43 countries around the world. (Getty Images)
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Andrew Mason, CEO of Groupon, speaks during the Digital Life Design conference (DLD) at HVB Forum on January 23, 2012 in Munich, Germany. DLD (Digital - Life - Design) is a global conference network on innovation, digital, science and culture which connects business, creative and social leaders, opinion-formers and investors for crossover conversation and inspiration. (Getty Images)
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Workers work on projects at Groupons international headquarters on June 10, 2011 in Chicago, Illinois. Groupon, a local e-commerce marketplace that connects merchants and consumers by offering goods and services at a discount, announced June 2 that it had filed with the Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The company, launched in Chicago in November 2008 now markets products and services in 43 countries around the world. (etty Images)
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The Groupon logo is engraved in a glass office partition in the company's international headquarters on June 10, 2011 in Chicago, Illinois. Groupon, a local e-commerce marketplace that connects merchants and consumers by offering goods and services at a discount, announced June 2 that it had filed with the Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The company, launched in Chicago in November 2008 now markets products and services in 43 countries around the world. (Getty Images)
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A discount on educational DVDs for children is offered through the Groupon website in the Chicago area on June 2, 2011 in Chicago, Illinois. Groupon announced today that it has filed with the Securities and Exchange Commission for a proposed initial public offering (IPO) of its Class A common stock. The social buying site is expected to raise an estimated $750 million with the IPO. (Getty Images)
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A sign marks the location of the Groupon headquarters on November 30, 2010 in Chicago, Illinois. Rumors are circulating that Google is close to reaching a deal to buy Groupon for a reported $5.3 billion. (Getty Images)