Costco Posts 7% December Sales Growth and Replaces Pepsi with Coca-Cola
Same-store sales rose 7% in December 2025 and membership accounts hit 81.4 million (+5.2% YoY), underpinning analysts’ consensus $1,033 target, implying 8% upside despite a 51x P/E. Costco ended its decade-long PepsiCo deal, reinstating Coca-Cola products in all food courts.
1. Stock Performance and Upside Potential
Over the 12 months leading up to its peak in early 2025, Costco delivered a total return of 52%, reflecting the company’s ability to compound value at a double-digit rate. Although shares are currently trading below their all-time high by approximately 11%, investors seeking modest gains should note that replicating a 5% uptick would align with the stock’s historical annual compound growth rate of 20% over the past decade. Furthermore, sell-side analysts maintain an upbeat consensus, projecting an average upside potential of around 8%, underscoring market confidence in Costco’s long-term trajectory.
2. Same-Store Sales and Membership Growth
Costco’s core business continues to generate robust fundamental gains, as evidenced by a 7% increase in same-store sales during December 2025, following 5.9% and 5.3% annual gains in fiscal 2025 and 2024, respectively. The membership base remains a key driver, with 81.4 million active accounts—up 5.2% year over year—providing a recurring revenue stream and high renewal rates. This performance highlights Costco’s competitive value proposition and its ability to attract and retain members even as retail dynamics evolve.
3. Potential Macroeconomic Risks
While Costco’s low-price model typically insulates it during downturns, a severe global recession could still lead to curtailed consumer spending and reduced warehouse traffic, potentially pressuring both top-line and gross margin metrics. However, the current monetary policy environment, characterized by an ongoing rate-cutting cycle and renewed quantitative easing, may support economic growth and consumer confidence, thus lowering the probability of a widespread demand contraction. Investors should monitor changes in consumer credit, unemployment trends and central bank guidance for early signs of stress.
4. Valuation and Analyst Outlook
Costco’s premium valuation—reflected in a forward price-to-earnings ratio north of 50—speaks to its leadership position in retail and strong brand equity. Wall Street forecasts call for revenue growth near 8% and earnings-per-share gains around 11% between fiscal 2025 and 2026, projections that mirror the company’s track record of predictable expansion. While the elevated multiple may limit near-term upside, the combination of structural membership fees, disciplined cost management and steady store openings underpins a high probability of continued shareholder returns.