Investors know that Domino's is in the pizza business. But few are aware that the company generates most of its revenue from supply chain services. For context, in its fiscal third quarter of 2024, it had over $650 million in supply chain revenue, which was 60% of its total revenue.

Warren Buffett's Berkshire Hathaway has created tremendous wealth for shareholders, and a key component of those returns stems from buying shares of strong businesses at attractive prices relative to their estimated worth.