For Walmart, This Is a $3 Billion Business. Could Costco Pursue the Same Strategy?

Most investors probably aren't even aware that this is something on the table.If I pointed out that Walmart (WMT -1.89%) was a $650 billion retail business, no one would bat an eye -- we all know it's huge. But if I said that Walmart was a $100 billion e-commerce platform, that might turn some heads. Well, turn those heads then, because it's true: Walmart is an enormous e-commerce business.When Walmart refers to e-commerce sales, it includes items that are bought online and picked up in stores. Therefore, t ...