Where Could Walmart's Next Growth Come From?

Walmart (WMT) stock currently trades at 39.0 times earnings, well above the 21.5 multiple for the S&P 500. Investors typically assign that kind of premium to rapid growth, yet Walmart reported a modest 5.9% revenue increase in its latest quarter. This valuation suggests the market expects profit to outpace sales by a wide margin, and selling more groceries alone may not be enough to justify it. So what does Walmart have that can grow faster than its stores.