Have you been searching for a stock that might be well-positioned to maintain its earnings-beat streak in its upcoming report? It is worth considering Walmart (WMT) , which belongs to the Zacks Retail - Supermarkets industry.When looking at the last two reports, this world's largest retailer has recorded a strong streak of surpassing earnings estimates. The company has topped estimates by 9.23%, on average, in the last two quarters.For the last reported quarter, Walmart came out with earnings of $0.67 per s ...