Costco: A Decade of Returns and Future Prospects

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A ten-year investment of $1,000 in Costco (COST 0.58%) would currently yield approximately $6,500. Factoring in dividend reinvestment, that figure rises to $7,725. By comparison, the same investment allocated to an S&P 500 index fund, inclusive of reinvested dividends, would realize approximately $4,000. While historical performance is not indicative of future results, these figures invite a closer examination of Costco’s capacity to sustain such returns.

Growth Drivers and Profitability

Costco’s business model centers on membership revenue, a strategy that affords it a degree of pricing flexibility uncommon in the retail sector. This allows the company to operate on comparatively narrow margins while simultaneously generating substantial cash flow. Scale also contributes to negotiating leverage with suppliers and the ability to monetize ancillary services, including fuel stations, optical centers, and food courts.

From fiscal year 2020 to 2025, Costco demonstrated a compound annual growth rate (CAGR) of 10.5% in revenue and 15.1% in earnings per share (EPS). This expansion coincided with an increase in warehouse count – from 795 to 914 – and a rise in total cardholders – from 105.5 million to 140.6 million. Global renewal rates also improved, increasing from 88% to 90.5%. This occurred despite a macroeconomic environment characterized by inflationary pressures, rising interest rates, and geopolitical instability. The company also implemented a membership fee increase in 2024, which, while anticipated, highlights a degree of pricing power.

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Sustainability of Momentum

In the first half of fiscal year 2026, Costco’s adjusted net sales (excluding fuel and foreign exchange impacts) increased by 6.5%. Warehouse count expanded to 924 locations, and the total number of cardholders reached 147.2 million. However, the global renewal rate experienced a modest decline to 89.7% in both the first and second quarters. This decrease is attributable, in part, to lower renewal rates among members who initially enrolled online rather than at a physical warehouse. These digitally acquired members exhibit a potentially higher propensity to cancel memberships if usage rates are insufficient.

Costco is actively addressing this trend through targeted digital communications, promotional offerings for ancillary services, enhanced member benefits, and auto-renewal features. The efficacy of these initiatives remains to be seen, and a return to prior renewal rates is not guaranteed.

Analysts currently project a revenue CAGR of 8% and an EPS CAGR of 11% from fiscal year 2025 to 2028. However, the current valuation of 49 times this year’s earnings represents a premium.

Valuation and Long-Term Prospects

Assuming Costco achieves analysts’ estimates and sustains a 10% EPS CAGR through fiscal year 2036, but trades at a more conservative price-to-earnings multiple of 25 by the final year, the stock price would increase by approximately 34% to just over $1,300 over the next decade. This projection suggests that while further appreciation is possible, the potential for outsized returns may be limited at the current valuation. A more favorable entry point may present itself at lower multiples.

The company’s long-term success is contingent upon maintaining robust renewal rates, effectively managing operating expenses, and adapting to evolving consumer preferences. The potential for increased competition from other warehouse clubs and online retailers also warrants consideration.

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2026-03-11 18:52