Shares of Groupon Inc. shot up 13% in premarket trade Wednesday, after the provider of online coupons reported a surprise adjusted profit and revenue that fell less than expected. The net loss widened to $6.9 million, or 1 cent a share, from $24.4 million, or 4 cents a share, in the same period a year ago. Excluding non-recurring items, adjusted earnings per share came to 3 cents, while the FactSet consensus was for a breakeven quarter. Revenue fell 7% to $626.5 million, but was above the FactSet consensus of $604.2 million. Total gross billings declined 4.8% to $1.29 billion, but beat the FactSet consensus of $1.28 billion. The company raised its 2018 guidance range for adjusted EBITDA (earnings before interest, taxes, depreciation and amortization) to $280 million to $290 million from $260 million to $270 million. Separately, Groupon announced a new $300 million share repurchase program, to replace the recently expired program. The stock had shed 5.1% year to date through Tuesday, while the S&P 500 had eased 0.1%.