Aeterna Zentaris Inc (AEZS.TO) WACC Analysis

As of May 23, 2025, Aeterna Zentaris Inc (AEZS.TO) carries a Weighted Average Cost of Capital (WACC) of 6.2%. WACC reflects the blended rate Aeterna Zentaris Inc must pay to both equity and debt holders.

Within that, the cost of equity is 5.1%, the cost of debt is 5.0%, and the effective tax rate is 0.7%.

Breakdown of WACC Components

• Long-term bond rate: 3.2% – 3.7%
• Equity market risk premium: 5.1% – 6.1%
• Adjusted beta: 0.38 – 0.54
• Additional risk adjustment: 0.0% – 0.5%
• Debt-to-equity ratio: 0.03

What It Means for Investors

With a selected WACC of 6.2%, Aeterna Zentaris Inc must ensure any new investment returns exceed this threshold to generate shareholder value. This level reflects an attractive low cost of capital.