Amazon dethrones Walmart as No. 1 on the Fortune 500. There’s a big upside to their rivalry

In today’s CEO Daily: Fortune’s Phil Wahba reports on the upside of the Amazon-Walmart rivarly. The big leadership story: OpenAI CEO Sam Altman says AI super intelligence could someday do his job. The markets: Mostly up, as investors monitor mounting U.S.-Iran tensions. Pl...

🔗 Read more: https://fortune.com/2026/02/20/amazon-walmart-no-1-fortune-500-upside-rivalry/

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