It's hard to underestimate Walmart (NYSE: WMT). After all, it's the biggest company in the world by revenue -- and the biggest retailer.
The company is on track to generate more than $550 billion in revenue this year, and after a strong third-quarter earnings report, the retail stock is trading at an all-time high. Year to date, shares have racked up gains of 26%.
Image source: Walmart.
Source Fool.com