Costco Wholesale (COST) Market Capitalization (2009 - 2026)

Costco Wholesale (COST) has reported Market Capitalization for 18 consecutive years, with $447.4 billion the latest figure, recorded in Q2 2026.

• For the quarter ending Q2 2026, Market Capitalization changed 0.07% year-over-year to $447.4 billion; the trailing twelve-month figure through May 2026 stood at $447.4 billion (changed 0.07% YoY), and the FY2025 full-year result was $418.1 billion, up 5.73% from the prior year.
• Market Capitalization declined to $447.4 billion in Q2 2026 per COST's latest filing, from $451.9 billion in the prior quarter.
• Across five years, Market Capitalization topped out at $475.6 billion in Q1 2025 and bottomed at $221.2 billion in Q2 2023.
• Historically, Market Capitalization has averaged $333.1 billion across 5 years, with a median of $335.1 billion in 2024.
• The sharpest annual moves came in 2024 and 2025: Market Capitalization jumped 64.09% in 2024, then slipped 6.75% in 2025.
• Over 5 years, Market Capitalization stood at $232.4 billion in 2022, then grew by 12.91% to $262.4 billion in 2023, then soared by 63.07% to $428.0 billion in 2024, then declined by 6.75% to $399.1 billion in 2025, then grew by 12.11% to $447.4 billion in 2026.
• According to Business Quant data, Market Capitalization over the past three periods registered $447.4 billion, $451.9 billion, and $399.1 billion for Q2 2026, Q1 2026, and Q4 2025 respectively.