Walmart is losing a big winner, as long-time CEO Doug McMillon is retiring
1. Walmart's CEO Doug McMillon will retire in early 2026. 2. John Furner, current CEO of Walmart U.S., will succeed McMillon. 3. Walmart's stock fell 2.7% in premarket trading amid CEO news. 4. McMillon's tenure saw Walmart outperform competitors and the broader market. 5. Walmart is due to report fiscal third-quarter results soon.