MongoDB Inc (MDB) WACC Analysis

As of June 14, 2025, MongoDB Inc (MDB) carries a Weighted Average Cost of Capital (WACC) of 9.2%. WACC reflects the blended rate MongoDB Inc must pay to both equity and debt holders.

Within that, the cost of equity is 8.0%, the cost of debt is 4.0%, and the effective tax rate is 1.8%.

Breakdown of WACC Components

• Long-term bond rate: 3.9% – 4.4%
• Equity market risk premium: 4.6% – 5.6%
• Adjusted beta: 0.9 – 0.99
• Additional risk adjustment: 0.0% – 0.5%
• Debt-to-equity ratio: 0

What It Means for Investors

With a selected WACC of 9.2%, MongoDB Inc must ensure any new investment returns exceed this threshold to generate shareholder value. This level reflects a moderate financing cost structure.