Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world. Activist investor Barry Rosenstein saw his two hedge funds at Jana Partners rebound in October from four months of losses as stock markets rallied. Jana Nirvana, which makes bets on or against stocks and credit, gained 4.5 percent in October, cutting declines for 2015 to 5.9 percent, according to an investor letter obtained by Bloomberg. The Jana Partners fund rose 2.7 percent in October, leaving it down 4.1 percent for this...