ATLANTA--(BUSINESS WIRE)--Newell Rubbermaid (NYSE: NWL) announced its second quarter 2015 financial results today. “We have posted a strong set of second quarter results with core sales growth of 5.1 percent and normalized earnings per share growth of 8.5 percent, despite unprecedented foreign exchange pressure on earnings,” said Michael Polk, President and Chief Executive Officer. “Core sales grew in all five of our segments and in all four geographic regions. Our Win Bigger businesses grew 6.