Fiscal year 2025 data is year-to-date (YTD) as of the third quarter ending in May 2025.
Costco's fiscal year ends on the Sunday closest to August 31st.
The significant growth in 2020 and 2021 was influenced by increased online shopping during the COVID-19 pandemic. Following this period, there was a slowdown in 2023 before growth rebounded in 2024.
