At 55.5x earnings, Costco costs more per dollar of profit than most tech stocks despite growing like a utility.

A wonderful business with predictable economics trading at a price that makes no sense for a permanent owner.

Does Costco have a durable competitive advantage that protects returns?

This framework sees a fortress built on switching costs — once members join, they rarely leave. The cash conversion efficiency and stable margins through cycles demonstrate pricing power within the membership model.

Are Costco's earnings predictable enough to count on twenty years hence?

Applying this lens reveals exactly what the framework values — a business whose earnings march upward as predictably as a metronome. The membership model and inflation correlation create the certainty this framework seeks.

If you bought the entire business today, would the earnings justify the price?

The owner's math simply doesn't work — paying $55 for $1 of earnings when treasuries pay $4.33 risk-free. This framework suggests even a wonderful company becomes a poor investment at the wrong price.

Are executives acting like owners or employees?

The persistent insider selling suggests management sees the stock as overvalued, though capital allocation remains disciplined. This framework notes the divergence between public statements and private actions.

Costco represents what this framework calls a wonderful company at a terrible price — predictable earnings, loyal customers, and honest management, but arithmetic that makes no sense for a permanent owner. At 55 times earnings with bonds paying 4.3%, even the best business becomes a speculation. Would you buy your local Costco warehouse for 55 times its annual profit?

This analysis applies Warren Buffett's published investment framework to publicly available financial data. It is not authored by, endorsed by, or affiliated with Warren Buffett. Educational purposes only. Not financial advice.