Arby's joins list of chains outcomping McDonald's

• Arby's reports same-store sales rose 7.6% in Q2.
• The privately-held restaurant chain had a 8.5% increase in same-store stores for the first half of the year.
• The strong performance by Arby's follows similar breakouts at Burger King, Sonic, and Wendy's.
• Missing from that list is McDonald's (NYSE:MCD) which has been stuck in reverse for sales in the U.S. and globally.