Arcos Dorados lifts EBITDA margin in Q2

• Arcos Dorados (NYSE:ARCO) reports comparable sales increased 9.5% in Q2.
• Consolidated adjusted EBITDA margin increased 50 bps during the quarter to 5.4%.
• "While we expect a more difficult economic and consumer backdrop in Brazil and Argentina will limit topline performance throughout 2016, we are optimistic that consumption will pick up as we enter 2017," says CEO Sergio Alonso.
• The restaurant operator ended the quarter with 2,135 units.
• ARCO +0.28% premarket to $5.44.