The number of investors expecting the euro zone to lose at least one member state in the coming months has increased, a survey showed on Tuesday, with the risk of contagion now seen as bigger than during the height of the debt crisis in 2012/13. The Frankfurt-based Sentix research group said its monthly "euro break-up" index, based on a survey of around 1,000 institutional and retail investors, rose to 25.2 percent in February from 21.3 percent in January. This means one out of four investors now believes that at least one euro zone member state will quit the single currency in the next 12 months. A separate ... (full story)