McDonald’s currently commands 49.5 percent of the fast-food burger market in the U.S. Burger King and Wendy’s combined grab 26%. The burger wars of a generation ago have largely been won, Shake Shack notwithstanding.
This evolution, by the way, is not unlike what has happened in the cola market, where Coca-Cola possesses nearly twice the market share of Pepsi-Cola, 17% to 9.5%. Pepsi has actually dropped to third place, behind Diet Coke at 9.9%.
Addendum, October 5: the same thing is happening with beer, where #1 seller Bud Light outsells #2 Budweiser by better than a 2-to-1 margin, 19.1% to 8.7%.