KEY POINTS
  • Walmart's e-commerce sales rose 43 percent during the fourth quarter.
  • Burt Flickinger, managing director of Strategic Resource Group, told CNBC that the U.S. firm is on the way to challenging Amazon's dominance.

Walmart is set to assert "worldwide dominance" and become one of "Amazon's worst nightmares," according to one analyst.

On Tuesday, the U.S. retail giant beat consensus expectations for its fourth quarter on same-store sales, revenue and earnings per share.