Management blamed the strong response to the launch of all-day breakfast for the slide in domestic comparable sales. Outside the US, performance was strong as global comps were up 2.7%.
Still, the slowdown in US sales underscores the challenge that CEO Steve Easterbrook faces now that all-day breakfast is no longer a reliable sales driver. Going into his third year leading the fast-food giant, he may have already picked much of the low-hanging fruit to boost US sales, making future sales gains more difficult.