Set up as a sole discount store in 1962 , Walmart has grown into the largest retailer in the world , with 260mn customers , 11,695 stores in 28 countries , as well as internet-based stores in 11 countries , according to its company website . According to Forbes , Walmart makes

$ 485.3bn in revenue , with a market cap of $ 221.1bn . It is 17th on Forbes ’ The World ’ s Biggest Public Companies , and ninth of America ’ s Top Public Companies . Madison reports that Walmart ’ s stock rose 43 % in 2017 , as the company has focused on combating Amazon ’ s retail ability with its own purchases in the ecommerce industry , including Jet . com , and express delivery service Parcel .

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