Earnings Video: Investors discount Groupon stock Add to ... Reuters Published Tuesday, Aug. 14 2012, 6:30 AM EDT Last updated Tuesday, Aug. 14 2012, 6:30 AM EDT Groupon shares hit an all-time low in after hours trading Monday after it reported a revenue miss, blaming Europe. Watch More Video: The Bottom Line: Is an all-robot factory good or bad? Intel to buy Altera Market Call Tonight: Top Picks from Horizons’ Don Vialoux CEO of Malaysia Airlines admits: Company is 'technically bankrupt' This week in business: Microsoft, IKEA and Lululemon Chinese economy eyes more support after factory data What seniors don’t know about money How much does a financial planner charge? Intel nears deal to buy Altera IMF chief Christine Lagarde's Grexit comments cause a stir Canadian banks' growth formula is intact: portfolio manager Banks to be questioned over FIFA Can this Montreal music broadcaster take on Spotify? Welcome to Canada's largest and busiest port The Bottom Line: If you want to brag at work, don’t do it like this Augmented reality mirrors, sensored clothes and the future of retail Canadian banks continue to top expectations Avago buys Broadcom for $37 billion Take a tour through one of Canada's most automated homes Greece optimistic as G7 gets under way Comments AA More Related to this Story Past Picks Video: BNN Market Call's past picks Fees Video: How entrepreneurs can cut legal costs Video: Streetwise: Is Quebec sending the right signals?