Costco's Q1 performance exceeded expectations but the market response was lackluster. Concerns are raised about slowing renewal rates of members and high valuation.

Wisdom Financial APP learned that the financial performance of Costco (COST.US) for the first quarter of the 2026 fiscal year exceeded market expectations. The financial report shows that Costco's Q1 revenue was $67.31 billion, a year-on-year increase of 6.4%, exceeding the market expectation of $67.14 billion. Among them, net sales were $65.98 billion, an increase of 8.2% year-on-year; membership fees were $1.33 billion, an increase of 14.0% year-on-year. Net profit was $2 billion, an increase of 11.3% year-on-year; diluted earnings per share were $4.50, exceeding the market expectation of $4.27. Q1 same-store sales increased by 6.4%, exceeding market expectations. Same-store sales in the United States increased by 5.9%. E-commerce sales increased by 20.5%.