Morning Movers: Groupon, HP, Amazon, Dish

Feb. 21 (Bloomberg) -- Bloomberg's Alix Steel, Adam Johnson, and Tom Keene highlight the news you need to follow for today's trading on Bloomberg Television's "Bloomberg Surveillance."

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Apple and Yahoo: A Tale of Two Tech Companies
41:48 - Jan. 28 -- Apple and Yahoo announced results yesterday and Bloomberg Contributing Editor Paul Kedrosky compares and contrasts the state of the two tech giants. He speaks on “In The Loop.”
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