MANHATTAN BEACH, Calif.--(BUSINESS WIRE)--SKECHERS USA, Inc. (NYSE:SKX), a global leader in footwear, today announced that the Company has been added to the S&P MidCap 400 Index®, effective as of the close of trading Tuesday, June 30, 2015. “We are pleased to be added to the S&P MidCap 400 Index®, which reflects our continued positive momentum across our global business,” commented David Weinberg, Chief Operating Officer and Chief Financial Officer. “This selection by S&P recognizes