Starbucks and the Afternoon McDonald's WantsNarrow moat

The competitor McDonald's is spending most aggressively to attack does not sell hamburgers. Beverage-led chains own the afternoon — the daypart where McDonald's traffic is thinnest and where drinks carry the best margins on any fast-food menu.

McDonald's has taken this seriously enough to try twice. CosMc's, the beverage-led spinoff launched in 2023, was shut by 2025; the drinks survived and are being rolled into McCafé across the United States, examined on the Future Bets pages. The strategic logic is that a menu addition inherits 13,400 restaurants¹ and the country's busiest drive-thrus on day one, which a standalone chain must build from nothing.

What McDonald's is buying is not really Starbucks' customers. It is incremental spend from customers already in the drive-thru, in a category where the incremental margin is high and the incremental cost is a few seconds of service time. That is a better trade than winning a coffee-shop customer, and it is why the beverage push is the most sensible growth initiative on the company's list.

Watch afternoon comparable sales and beverage attachment rates through the back half of 2026, alongside drive-thru service times. Complexity is the franchisees' standing complaint, and a menu that slows the line costs more than the drinks earn.