
There’s no shortage of markets that have become dominated by just two companies.
Notable duopolies have emerged in fast food, with McDonald’s (NYSE: MCD) and Burger King becoming the iconic brands. Starbucks (NASDAQ: SBUX) and Dunkin rule the coffee landscape, and Nike (NYSE: NKE) and Adidas (OTCMKTS: ADDDF) are at the forefront of athletic apparel and footwear.