Which option correctly describes the role of unlevering betas in private company beta estimation?

Which option correctly describes the role of unlevering betas in private company beta estimation?

• A. Take public comparables beta and unlever them; average the unlevered betas; relever to target capital structure.
• B. Use the private company's beta from internal reports
• C. Use only levered betas
• D. Use industry beta without adjustments

Answer: (A)

Estimating beta for a private company relies on separating business risk from financing risk. Since you can’t observe a private firm’s beta directly, you borrow betas from public companies with similar operations, then strip out their financial leverage to reveal the underlying asset risk. This unlevered or asset beta is then averaged across the comparables to get a stable measure of the business risk itself. Finally, you re-apply the private firm’s target capital structure by relevering that average asset beta to reflect its anticipated debt and tax situation. The process uses the standard relationship: unlevered beta = levered beta divided by [1 + (1 − tax rate) × debt/equity], and relevering multiplies the asset beta by [1 + (1 − tax rate) × targeted debt/equity]. This approach yields a beta that aligns with the private firm’s risk profile under its planned financing. Using a private beta from internal reports isn’t typically feasible, and relying only on levered betas would conflate business risk with financial risk. Using an industry beta without adjustments ignores company-specific capital structure and risk nuances.

Estimating beta for a private company relies on separating business risk from financing risk. Since you can’t observe a private firm’s beta directly, you borrow betas from public companies with similar operations, then strip out their financial leverage to reveal the underlying asset risk. This unlevered or asset beta is then averaged across the comparables to get a stable measure of the business risk itself. Finally, you re-apply the private firm’s target capital structure by relevering that average asset beta to reflect its anticipated debt and tax situation. The process uses the standard relationship: unlevered beta = levered beta divided by [1 + (1 − tax rate) × debt/equity], and relevering multiplies the asset beta by [1 + (1 − tax rate) × targeted debt/equity]. This approach yields a beta that aligns with the private firm’s risk profile under its planned financing.

Using a private beta from internal reports isn’t typically feasible, and relying only on levered betas would conflate business risk with financial risk. Using an industry beta without adjustments ignores company-specific capital structure and risk nuances.