Who Were This Week's Biggest Winners and Losers?

Jan. 25 (Bloomberg) -- Sheila Dharmarajan recaps this week's earnings reports and what headlines to look for next week. She speaks on Bloomberg Television's "Taking Stock." (Source: Bloomberg)

What More Needs to Be Done at Groupon?
20:11 - Groupon reported fourth-quarter earnings that beat analysts’ estimates driven by purchases in North America. Groupon CEO Rich Williams speaks on "Bloomberg Markets." (Source: Bloomberg)
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