It's no secret that Wal-Mart (NYSE:WMT) has been struggling over the last few years. Thanks to increased competition from the likes of (NASDAQ:AMZN) and Costco (NASDAQ:COST), same-store sales at the nation's largest retailer have fallen at an alarming rate. Despite this, Motley Fool contributor John Maxfield thinks there's one big reason that investors can still be confident about the future of the company.

Fool contributor John Maxfield has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.