Is Walmart Making a Play to Win Market Share From Amazon? Here's What Investors Need to Know

Walmart (WMT 2.32%) may be the largest company in the U.S. by sales, but it keeps making its top line bigger. For a while, it looked like competitor Amazon (AMZN -0.64%) was poised to overtake it, but Walmart is just too big and doing too well to catch. It's a battle of true titans, as both companies boast more than $600 billion in revenues over the last four quarters.Walmart delivered another outstanding quarterly report last week, and the growth drivers behind the results might surprise you. Two factors h ...