Groupon tumbles after weak 1Q revenue outlook

For the current quarter, Groupon is expecting revenue of $560 million and $610 million, which translates to a range of flat to 9 percent higher than in the first quarter of 2012. Analysts are expecting higher revenue of $646.8 million.

Groupon's stock fell $1.46 to $4.52 in after-hours trading. Earlier, the stock had closed up 43 cents at $5.98 prior to the release of the earnings report.