Groupon (GRPN) -10.5% AH after revising its Q4 revenue downward by $14.3M, and its EPS by $0.04,...

|By:, SA News Editor

Groupon (GRPN) -10.5% AH after revising its Q4 revenue downward by $14.3M, and its EPS by $0.04, on account of an increase in the company's refund reserve accrual. Details about the increase, which relate to a sales mix shift, are provided in Groupon's just-filed 10-K, which also includes a disclosure of "material weakness" in internal controls. The company is reaffirming its Q1 guidance.