Shoppers load a television set into their cart at a Walmart store in Secaucus, New Jersey.

The strong GDP economic data for the June quarter is showing up in the real economy.

Major U.S. companies including Walmart and Cisco are confirming the positive macro data by posting their best financial results in many years. The reports indicate broad-based strength in the domestic economy.

Last month the government said second-quarter GDP grew at 4.1 percent, the fastest pace in nearly four years.

Perhaps no single company is a better barometer of economic health than Walmart, the country's largest retailer. In 2016, the company said more than 40 percent of the U.S. population, or 140 million people, shopped at Walmart on a weekly basis.

And now Walmart's sales growth is better than at any time in the past decade.

The retailer's shares closed up 9.3 percent Thursday after it posted its highest domestic same-store sales growth in more than 10 years for its second quarter. Walmart reported an increase of 4.5 percent versus the Thomson Reuters estimate of 2.4 percent.