In a PE financing, which tranche is typically the riskiest and offers the potential for the highest returns?

• A. Senior debt.
• B. Revolver.
• C. Subordinated debt (Mezzanine).
• D. Equity.

Answer: (D)

Position in the capital stack determines risk and return: the equity layer sits last in line for payments and thus bears the most downside if things go poorly, while also capturing the full upside if the business performs well. Because debt obligations get paid before equity, owners of equity absorb losses first. But the upside—when the company is sold or refinanced at a higher value—drives equity returns the most, since all residual value flows to equity holders after debt is satisfied. In contrast, senior debt is secured and has priority with fixed returns and lower risk, subordinated debt offers higher yields but still provides debt-like protections, and revolvers are liquidity facilities with limited upside. So the equity tranche is the riskiest and offers the potential for the highest returns.