Feline's portfolio rises by 4.2%
                                
                                
                                    (Newser) -
                                    Investors, it's kitty-cat time: A contest that pitted stock-picking professionals against finance students and a cat named Orlando wrapped up last month—and Orlando won, the  Guardian  reports. Starting last January, each team invested an imaginary sum worth about $7,900 and was allowed to swap any stocks every...