Weak reports from Lorillard and Procter & Gamble helped end the market’s longest winning streak of 2014, but the losses were small. Before Wednesday, stocks had gained for four days, mitigating some of the market’s weakness in January, caused by signs of slowing growth in China and doubts about the US economy. Stocks jumped on Tuesday after the Fed’s new chief said she will continue its low-interest-rate policies. But only the Nasdaq eked out a gain. Amazon.com fell 3.5 percent as UBS cut its rating to ‘neutral.’ DaVita HealthCare jumped 3.1 percent after it said it resolved a US probe and quarterly income soared 36 percent.