EV/EBITDA for Costco (COST)

Costco (COST) EV/EBITDA ratio is 29.0× as of June 5, 2026. The 5-year average is 27.2×. The sector median currently stands at 13.0×. The current ratio is at the 60th percentile of its own 10-year history.

Costco (COST) historical EV/EBITDA ratio has ranged from a low of 6.7× (2009) to a high of 38.4× (2025) in the available daily series.

The EV/EBITDA ratio (the enterprise multiple) compares enterprise value (EV) to trailing twelve-month (TTM) EBITDA. EV is calculated as market capitalisation + total debt − cash & short-term investments. Because EV/EBITDA is capital-structure-neutral and ignores non-cash depreciation and amortisation, it is the standard multiple used in M&A and for cross-company or cross-border comparisons. Note: this calculation uses a simplified EV (minority interest and preferred equity excluded due to data availability), consistent with most public financial-data providers.