Mastercard Incorporated (MA) vs Walmart Inc. (WMT)

Mastercard Incorporated is the world’s second-largest payment processor, handling nearly $11 trillion in payment volume during 2025. The company operates in more than 200 countries and territories and processes transactions in over 150 currencies worldwide.

Founded in 1962, Walmart Inc. has grown into the world’s largest retailer, operating more than 10,700 stores worldwide, including about 4,600 Walmart locations in the United States and roughly 600 Sam’s Club warehouses, while continuing to expand its e-commerce business. The company serves around 270 million customers each week and generated over $680 billion in fiscal 2025 revenue. Walmart’s operations are organized into three reporting segments: Walmart U.S., which accounted for 68% of fiscal 2025 sales, Walmart International at 18%, and Sam’s Club at 14%. In the U.S., nearly 60% of Walmart’s $465 billion in fiscal 2025 revenue came from grocery sales, with about one-quarter generated by general merchandise. Internationally, the company’s business is primarily concentrated in Mexico, with additional emerging exposure to India.