OLDWICK, N.J.--(BUSINESS WIRE)--For publicly traded reinsurance companies, stock prices ended the first quarter of 2015 well above the overall market, driven by the continued benign loss environment and strong performance by the largest four European companies. Of the 18 publicly traded worldwide reinsurers (including the four top European players), just one had a negative performance during the first quarter of 2015, and just two performed worse than the overall market, according to an A.M. Be