Prediction: Costco Will Join the $1 Trillion Club by 2033

Costco is predicted to reach a $1 trillion market cap by 2033, requiring 140% growth from its current $417 billion valuation. The company's durable membership model with 92%+ renewal rates, steady warehouse expansion of 30+ per year, and strong e-commerce growth of 20%+ provide multiple growth engines. However, valuation risks exist as the stock already trades at a premium multiple.