Starbucks Comp Sales: Why Existing Stores Still Matter More Than New Ones

EDITOR’S NOTE:
This article has been updated to correct several inaccuracies in the original version, including the characterization of U.S. traffic trends, the role of international markets, and the context around margin pressure. We regret the errors and any misleading framing. The revised article below reflects Starbucks’ Q1 FY2026.

Starbucks (NASDAQ: SBUX) plans to open roughly 650 new stores this year, but the metric that ultimately determines the health of the business remains U.S. comparable store sales. New locations can add revenue, but long-term value depends on whether existing stores are growing traffic and transactions.

The Metric: U.S. Same-Store Sales Growth

Comparable sales measure performance at stores open at least 12 months, isolating customer behavior from expansion. Positive comps signal returning customers and pricing power. Negative comps point to demand issues or market saturation.

What the Data Actually Shows

In Q1 FY2026, Starbucks reported:

• U.S. comparable sales up 4%

• U.S. transactions up approximately 3%

• Global comparable sales up ~4%

These results indicate improving U.S. traffic. Existing stores are contributing to growth alongside new openings.

Revenue Grew, Profits Lagged

Revenue increased about 5% year over year to $9.9 billion, but operating margins declined to roughly 9%, and EPS fell sharply. Margin pressure reflects higher labor and store-level investments, which the company has described as intentional and aimed at improving service and throughput.

This dynamic matters: even with positive comps, profitability must eventually follow. Fixed costs remain high, and sustained margin compression would limit earnings leverage.

International Performance

China delivered strong comp growth (around 7%), but it was not the sole driver. Starbucks reported international comparable growth of roughly 5%, with positive performance across multiple major markets.

What to Watch

Bullish:

• U.S. comps remain positive with both traffic and ticket growth

• Margin pressure stabilizes as investments mature

Bearish:

• Comp growth stalls or becomes price-driven rather than traffic-driven

• Costs continue to rise faster than revenue

Red flag:

• Reduced transparency around U.S. versus international comp reporting

Verdict

Opening new stores is straightforward. Sustaining growth across a large existing base is harder, and more important. Starbucks’ latest results show improving U.S. comps and traffic. The open question is whether those gains can translate into durable margin recovery.