Thanks to a scarcity of government data on how much (or little) consumers are spending, Wall Street is analyzing this quarter’s retail earnings reports even more closely than usual. And those numbers have made one thing clear: Walmart is still the retail king. The country’s largest retailer not only beat earnings and revenue estimates during its third quarter but also bumped its full-year sales and earnings outlook higher. That’s the second quarter in a row Walmart has increased its forecast for the year, ...